EMC Enterprise Storage EMC Fibre Channel Storage Systems Models FC4500, FC5300, and FC5700 CONFIGURATION PLANNING GUIDE P/N 014003039-02 EMC Corporation Corporate Headquarters: (508) 435-1000, (800) 424-EMC2 171 South Street, Hopkinton, MA 01748-9103 Fax: (508) 435-5374 Service: (800) SVC-4EMC
Copyright © EMC Corporation 2000, 2001. All rights reserved. Printed May 2001 No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written consent of EMC Corporation. The information contained in this document is subject to change without notice. EMC Corporation assumes no responsibility for any errors that may appear.
Contents Preface..............................................................................................................................xi Chapter 1 About Fibre Channel Storage Systems and Networks (SANs) Introducing EMC Fibre Channel Storage Systems.......................1-2 Fibre Channel Background..............................................................1-3 Fibre Channel Storage Components ..............................................
Contents RAID 1 Mirrored Pair ...............................................................2-7 RAID 0 Group (Nonredundant Array) ..................................2-8 RAID 1/0 Group (Mirrored RAID 0 Group) .........................2-8 Individual Disk Unit .................................................................2-9 Hot Spare ....................................................................................2-9 RAID Benefits and Tradeoffs.........................................................
Contents Hardware for Unshared Storage.................................................... 5-6 Types of Storage System for Unshared Storage ................... 5-6 Disks............................................................................................ 5-8 Storage Processor (SP) .............................................................. 5-9 Planning Your Hardware Components ...................................... 5-11 Configuration Tradeoffs - Shared Storage ..........................
Contents vi EMC Fibre Channel Storage Systems Configuration Planning Guide
Figures 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 2-1 2-2 2-3 2-4 2-5 2-6 2-7 3-1 4-1 4-2 5-1 5-2 5-3 5-4 5-5 5-6 5-7 Storage System Models ................................................................................ 1-2 Nodes - Initiator and Target ....................................................................... 1-3 Switch and Hub Topologies Compared .................................................... 1-6 A Switch Zone ............................................................
Figures 5-8 5-9 5-10 5-11 5-12 5-13 5-14 5-15 5-16 5-17 6-1 6-2 viii Storage System with Two SPs Connected to the Same Server ............. 5-10 Storage System with Two SPs Connected to Different Servers ............ 5-10 Comparison Between Optical and Copper Cabling ............................... 5-21 Cable Identifier — DPE-Based System for Shared Storage ................... 5-24 Sample Shared Storage Installation ..........................................................
Tables 2-1 3-1 4-1 5-1 5-2 5-3 5-4 Performance, Availability, and Cost of RAID Types (Individual Unit = 1.0) ............................................................................... Cache Recommendations for Different RAID Types ............................ Cache Recommendations for Different RAID Types ............................ High-Availability Options, Deskside Unshared Storage ...................... High-Availability Options, Rackmount Unshared Storage .................
Tables x EMC Fibre Channel Storage-System Configuration Planning Guide
Preface This planning guide provides an overview of Fibre Channel disk-array storage-system models and offers essential background information and worksheets to help you with the installation and configuration planning. Please read this guide • if you are considering purchase of an EMC Fibre Channel disk-array storage system and want to understand its features; or • before you plan the installation of a storage system.
Preface Organization of the Manual Chapter 1 xii Provides background information on the Fibre Channel protocols and explains the major installation types. Chapter 2 Describes the RAID Groups and the different ways they store data. Chapter 3 Describes installations for shared switched storage. Chapter 4 Describes installations for unshared direct, and shared-or-clustered direct, and shared switched storage. Chapter 5 Describes hardware components.
1 About Fibre Channel Storage Systems and Networks (SANs) This chapter introduces Fibre Channel disk-array storage systems and storage area networks (SANs). Major sections are • • • • Introducing EMC Fibre Channel Storage Systems........................1-2 Fibre Channel Background ...............................................................1-3 Fibre Channel Storage Components................................................1-4 About Switched Shared Storage and SANs (Storage Area Networks)...............
About Fibre Channel Storage Systems and Networks (SANs) 1 Introducing EMC Fibre Channel Storage Systems EMC Fibre Channel disk-array storage systems provide terabytes of disk storage capacity, high transfer rates, flexible configurations, and highly available data at low cost. A storage system package includes a host-bus adapter driver package with hardware and software to connect with a server, storage management software, Fibre Channel interconnect hardware, and one or more storage systems.
About Fibre Channel Storage Systems and Networks (SANs) 1 Fibre Channel Background Fibre Channel is a high-performance serial protocol that allows transmission of both network and I/O channel data. It is a low level protocol, independent of data types, and supports such formats as SCSI and IP. The Fibre Channel standard supports several physical topologies, including switched fabric point-to-point and arbitrated loop (FC-AL).
About Fibre Channel Storage Systems and Networks (SANs) 1 Fibre Channel Storage Components A Fibre Channel storage system has three main components: • Server component (host-bus adapter driver package with adapter and software) • Interconnect components (cables based on Fibre Channel standards, switches, and hubs) • Storage components (storage system with storage processors — SPs — and power supply and cooling hardware) Server Component (Host-Bus Adapter Driver Package with Software) The host-bus ad
About Fibre Channel Storage Systems and Networks (SANs) 1 The maximum length of copper cable is 30 meters (99 feet) between nodes or hubs. The maximum length of optical cable between server and hub or storage system is much greater, depending on the cable type. For example, 62.5-micron multimode cable can span up to 500 meters (1,640 feet) while 9-micron single-mode cable can span up to 10 kilometers (6.2 miles). This ability to span great distances is a major advantage of optical cable.
About Fibre Channel Storage Systems and Networks (SANs) 1 You can cascade switches (connect one switch port to another switch) for additional port connections.
About Fibre Channel Storage Systems and Networks (SANs) 1 Server 1 Adapter Adapter Adapter Switch fabric Zone SP SP Storage system 1 SP SP SP Storage system 2 SP Storage system 3 To illustrate switch zoning, this figure shows just one HBA per server and one switch or hub. Normally, such installations will include two HBAs per server and two switches or hubs.
About Fibre Channel Storage Systems and Networks (SANs) 1 If your servers and storage systems will be far apart, you can place the switches closer to the servers or the storage systems, as convenient. A switch is technically a repeater, not a node, in a Fibre Channel loop. However, it is bound by the same cabling distance rules as a node. Fibre Channel Hubs A hub connects all the nodes cabled to it into a single logical loop.
About Fibre Channel Storage Systems and Networks (SANs) 1 Storage Component (Storage Systems, Storage Processors (SPs), and Other Hardware) EMC disk-array storage systems, with their storage processors, power supplies, and cooling hardware form the storage component of a Fibre Channel system. The controlling unit, a Disk-array Processor Enclosure (DPE) looks like the following figure. Disk modules EMC1808 Figure 1-7 Disk-Array Processor Enclosure (DPE) DPE hardware details appear in a later chapter.
About Fibre Channel Storage Systems and Networks (SANs) 1 Types of Storage System Installations You can use a storage systems in any of several types of installation: • Unshared direct with one server is the simplest and least costly; • Shared-or-clustered direct lets two clustered servers share storage resources with high availability (FC4500 storage systems; and • Shared switched, with one or two switch fabrics, lets two to 15 servers share the resources of several storage systems in a Storage Area
About Fibre Channel Storage Systems and Networks (SANs) 1 About Switched Shared Storage and SANs (Storage Area Networks) This section explains the features that let multiple servers share disk-array storage systems on a SAN (storage area network). A SAN is a collection of storage devices connected to servers via Fibre Channel switches to provide a central location for disk storage.
About Fibre Channel Storage Systems and Networks (SANs) 1 However, switch zoning cannot selectively control data access to LUNs in a storage system, because each SP appears as a single Fibre Channel device to the switch. So switch zoning can prevent or allow communication with an SP, but not with specific disks or LUNs attached to an SP. For access control with LUNs, a different solution is required: Storage Groups.
About Fibre Channel Storage Systems and Networks (SANs) 1 Highly available cluster File Server Operating system A Mail Server Operating system A Database Server Operating system B SP A Cluster Storage Group Database Server Storage Group Figure 1-10 Adapter Adapter Adapter Adapter Adapter Adapter Switch fabric Switch fabric SP B LUN LUN LUN LUN LUN LUN LUN Physical storage systems with up to 100 disks per storage system Path 1 Path 2 Sample SAN Configuration Access Control with Shared Storag
About Fibre Channel Storage Systems and Networks (SANs) 1 The following figure shows both data access control (Storage Groups) and configuration access control. Each server has exclusive read and write access to its designated Storage Group. Of the four servers connected to the SAN, only the Admin server can send configuration commands to the storage system.
About Fibre Channel Storage Systems and Networks (SANs) 1 Storage System Hardware for Shared Storage For shared storage, you need a Disk-array Processor Enclosure (DPE) storage system. A DPE is a 10-slot enclosure with hardware RAID features provided by one or two storage processors (SPs). For shared storage, two SPs are required. In addition to its own disks, a DPE can support up to nine 10-slot Disk Array Enclosures (DAEs) for a total of 100 disks.
About Fibre Channel Storage Systems and Networks (SANs) 1 About Unshared Storage Unshared storage systems are less costly and less complex than shared storage systems. They offer many shared storage system features; for example, you can use multiple unshared storage systems with multiple servers. However, with multiple servers, unshared storage offers less flexibility and security than shared storage, since any user with write access to a privileged server’s files can enable access to any storage system.
About Fibre Channel Storage Systems and Networks (SANs) 1 Disk-array processor enclosure (DPE) Deskside DPE with DAE 30-slot deskside Figure 1-13 What Next? Rackmount DPE, one enclosure, supports up to 9 DAEs Intelligent disk-array enclosure (iDAE) 10-slot deskside Rackmount Storage System Hardware for Unshared Storage For information about RAID types and RAID tradeoffs, continue to the next chapter.
About Fibre Channel Storage Systems and Networks (SANs) 1 1-18 EMC Fibre Channel Storage-System Configuration Planning
2 RAID Types and Tradeoffs This chapter explains RAID types you can choose for your storage system LUNs. If you already know about RAID types and know which ones you want, you can skip this background information and skip to Chapter 5. Topics are • • • • • Introducing RAID ..............................................................................2-2 RAID Types .........................................................................................2-4 RAID Benefits and Tradeoffs ......................
RAID Types and Tradeoffs 2 Introducing RAID The storage system uses RAID (redundant array of independent disks) technology. RAID technology groups separate disks into one logical unit (LUN) to improve reliability and/or performance. The storage system supports five RAID levels and two other disk configurations, the individual unit and the hot spare (global spare). You group the disks into one RAID Group by binding them using a storage-system management utility.
RAID Types and Tradeoffs 2 RAID Groups and LUNs Some RAID types let you create multiple LUNs on one RAID Group. You can then allot each LUN to a different user, server, or application. For example, a five-disk RAID 5 Group that uses 36-Gbyte disks offers 144 Gbytes of space. You could bind three LUNs, say with 24, 60, and 60 Gbytes of storage capacity, for temporary, mail, and customer files.
RAID Types and Tradeoffs 2 RAID Types You can choose from the following RAID types: RAID 5, RAID 3, RAID 1, RAID 0, RAID 1/0, individual disk unit, and hot spare. RAID 5 Group (Individual Access Array) A RAID 5 Group usually consists of five disks (but can have three to sixteen). A RAID 5 Group uses disk striping. With a RAID 5 Group on a full-fibre storage system, you can create up to 32 RAID 5 LUNs to apportion disk space to different users, servers, and applications.
RAID Types and Tradeoffs 2 Stripe element size Stripe Blocks First disk 0-127 512-639 1024-11511536-1663 Parity … Second disk 128-255 640-767 1152-1279 Parity 2048-2175 … Third disk 256-383 768-895 Parity 1664-1791 2176-2303 … Stripe size Fourth disk Parity 384-511 1280-1407 1792-1919 2304-2431 … User data Parity data Fifth disk Parity 896-1023 1408-1535 1920-2047 2432-2559 … EMC1815 Figure 2-2 RAID 5 Group RAID 5 Groups offer excellent read performance and good write performance.
RAID Types and Tradeoffs 2 The following figure shows user and parity data with a data block size of 2 Kbytes in a RAID 3 Group. Notice that the byte addresses proceed from the first disk to the second, third, and fourth, then the first, and so on.
RAID Types and Tradeoffs 2 For each write to a RAID 3 Group, the storage system 1. Calculates the parity data. 2. Writes the new user and parity data. RAID 1 Mirrored Pair A RAID 1 Group consists of two disks that are mirrored automatically by the storage-system hardware. RAID 1 hardware mirroring within the storage system is not the same as software mirroring or hardware mirroring for other kinds of disks.
RAID Types and Tradeoffs 2 RAID 0 Group (Nonredundant Array) A RAID 0 Group consists of three to a maximum of sixteen disks. A RAID 0 Group uses disk striping, in which the hardware writes to or reads from multiple disks simultaneously. In a full-fibre storage system, you can create up to 32 LUNs per RAID Group. Unlike the other RAID levels, with RAID 0 the hardware does not maintain parity information on any disk; this type of group has no inherent data redundancy.
RAID Types and Tradeoffs 2 Stripe Stripe element size Blocks 0-127 First disk of primary image 384-511 768-895 1152-1279 1536-1663 … Second disk of primary image Stripe size 128-255 512-639 896-1023 1280-1407 1664-1791 … Third disk of primary image 256-383 640-767 1024-1151 1408-1535 1792-1919 … First disk of secondary image 0-127 384-511 768-895 1152-1279 1536-1663 User data … Second disk of secondary image 128-255 512-639 896-1023 1280-1407 1664-1791 … Third disk of secondary image 256
RAID Types and Tradeoffs 2 replace the failed disk, the SP copies the data from the former hot spare onto the replacement disk. When the copy is done, the disk group consists of disks in the original slots, and the SP automatically frees the hot spare to serve as a hot spare again. A hot spare is most useful when you need the highest data availability. It eliminates the time and effort needed for someone to notice that a disk has failed, find a suitable replacement disk, and insert the disk.
RAID Types and Tradeoffs 2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Hot spare 1. RAID 5 group consists of disk modules 0-4; RAID 1 mirrored pair is modules 5 and 6; hot spare is module 9. 2. Disk module 3 fails. 3. RAID 5 group becomes modules 0, 1, 2, 9, and 4; now no hot spare is available. 4. System operator replaces failed module 3 with a functional module. 5. RAID 5 group once again is 0-4 and hot spare is 9.
RAID Types and Tradeoffs 2 RAID Benefits and Tradeoffs This section reviews RAID types and explains their benefits and tradeoffs.
RAID Types and Tradeoffs 2 Table 2-1 Performance, Availability, and Cost of RAID Types (Individual Unit = 1.0) Relative read performance without cache Relative write performance without cache Relative cost per Mbyte RAID 5 Group with fivedisks Up to 5 with five disks (for small I/O requests, 2 to 8 Kbytes) Up to 1.25 with five disks (for small I/O requests, 2 to 8 Kbytes) 1.25 RAID 3 Group with fivedisks Up to 4 (for large I/O requests) Up to 4 (for large I/O requests) 1.
RAID Types and Tradeoffs 2 We do not recommend using RAID 3 in the same storage-system chassis with RAID 5 or RAID 1/0. A RAID 1 mirrored pair has its disks locked in synchronization, but the SP can read data from the disk whose read/write heads are closer to it. Therefore, RAID 1 read performance can be twice that of an individual disk while write performance remains the same as that of an individual disk.
RAID Types and Tradeoffs 2 space usage is critical, bind an individual unit or RAID 0 Group without software mirroring. A RAID 1 mirrored pair or RAID 1/0 Group provides very high data availability. They are more expensive than RAID 5 or RAID 3 Groups, since only 50 percent of the total disk capacity is available for user data, as shown on page 2-13. A RAID 5 or RAID 3 Group provides high data availability, but requires more disks than a mirrored pair.
RAID Types and Tradeoffs 2 RAID 0 Group (nonredundant array) RAID 5 Group RAID 3 Group 1st disk user and parity data 1st disk user data 2nd disk user and parity data 2nd disk user data 3rd disk user and parity data 3rd disk user data 4th disk user and parity data 4th disk user data RAID 1/0 Group 5th disk user and parity data 5th disk parity data 1st disk user data 1st disk user data 100% user data 2nd disk user data 3rd disk user data 80% user data 20% parity data 2nd disk user data Dis
RAID Types and Tradeoffs 2 Guidelines for RAID Types To decide when to use a RAID 5 Group, RAID 3 Group, mirror (that is, a RAID 1 mirrored pair or RAID 1/0 Group), a RAID 0 Group, individual disk unit, or hot spare, you need to weigh these factors: • Importance of data availability • Importance of performance • Amount of data stored • Cost of disk space The following guidelines will help you decide on RAID types.
RAID Types and Tradeoffs 2 Use a RAID 0 Group (nonredundant individual access array) for applications where • High availability is not important • Overall performance is very important Use an individual unit for applications where • High availability is not important • Speed of write access is somewhat important Use a hot spare where 2-18 • In any RAID 5, RAID 3, RAID 1/0 or RAID 1 Group, high availability is so important that you want to regain data redundancy quickly without human intervention
RAID Types and Tradeoffs 2 Sample Applications for RAID Types This section describes some types of applications in which you would want to use a RAID 5 Group, RAID 3 Group, RAID 1 mirrored pair, RAID 0 Group (nonredundant array), RAID 1/0 Group, or individual unit. RAID 5 Group (individual access array) — Useful as a database repository or a database server that uses a normal or low percentage of write operations (writes are 33 percent or less of all I/O operations).
RAID Types and Tradeoffs 2 RAID 0 Group (nonredundant individual access array) — Use a RAID 0 Group where the best overall performance is important. In terms of high availability, a RAID 0 Group is less available than an individual unit. A RAID 0 Group (like a RAID 5 Group) requires a minimum of three disks. A RAID 0 Group serves well for an application that uses short-term data to which users need quick access.
3 Planning File Systems and LUNs with Shared Switched Storage This chapter shows a sample RAID, LUN, and Storage Group configuration with shared storage, and then provides worksheets for planning your own shared storage installation. Topics are • Dual Paths to LUNs ...........................................................................3-2 • Sample Shared Switched Installation..............................................3-3 • Planning Applications, LUNs, and Storage Groups .....................
Planning File Systems and LUNs with Shared Switched Storage 3 Dual Paths to LUNs A shared storage system includes two or more servers, one or two Fibre Channel switches, and one or more storage systems, each with two SPs and Access Logix software. With shared storage, there are two paths to each LUN in the storage system.
Planning File Systems and LUNs with Shared Switched Storage 3 Sample Shared Switched Installation The following figure shows a sample shared switched (high-availability) storage system connected to three servers: two servers in a cluster and one server running a database management program.
Planning File Systems and LUNs with Shared Switched Storage 3 The storage-system disk IDs and server Storage Group LUNs are as follows.
Planning File Systems and LUNs with Shared Switched Storage 3 Mail Server — 576 Gbytes on four LUNs MS R5 ISP mail Unit O on five disks bound as a RAID 5 Group for 144 Gbytes of storage; for the mail delivered via ISP A. MS R5 ISP mail Unit P on five disks bound as a RAID 5 Group for 144 Gbytes of storage; for the mail delivered via ISP B. MSR5 Users Unit Q on five disks bound as a RAID 5 Group for 144 Gbytes of storage; for user directories and files.
Planning File Systems and LUNs with Shared Switched Storage 3 Planning Applications, LUNs, and Storage Groups This section helps you plan your shared storage use — the applications to run, the LUNs that will hold them, and the Storage Groups that will belong to each server. The worksheets to help you do this include • Application and LUN planning worksheet - lets you outline your storage needs.
Planning File Systems and LUNs with Shared Switched Storage 3 Application and LUN Planning Worksheet Application File system, partition, or drive RAID type of LUN LUN ID (hex) Disk space required (Gbytes) Server name and operating system A sample worksheet begins as follows: RAID type of LUN LUN ID (hex) Disk space required (Gbytes) Server name and operating system Mail 1 RAID 5 0 72 Gb Server1, NT Mail 2 RAID 5 1 72 Gb Server1, NT Database index RAID 1 2 18 Gb Server2, NT Applica
Planning File Systems and LUNs with Shared Switched Storage 3 RAID type of LUN. This is the RAID Group type you want for this partition, file system, or logical volume. The features of RAID types are explained in Chapter 2. For a RAID 5, RAID 1, RAID 1/0, and RAID 0 Group, you can create one or more LUNs on the RAID Group. For other RAID types, you can create only one LUN per RAID Group. LUN ID. The LUN ID is a hexadecimal number assigned when you bind the disks into a LUN.
Planning File Systems and LUNs with Shared Switched Storage 3 LUN and Storage Group Planning Worksheet 11_0 11_1 11_211_3 11_4 11_5 11_6 11_7 11_811_9 10_0 10_1 10_210_3 10_4 10_5 10_6 10_7 10_8 10_9 9_0 9_1 9_2 9_3 9_4 9_5 9_6 9_7 9_8 9_9 8_0 8_1 8_2 8_3 8_4 8_5 8_6 8_7 8_8 9_9 7_0 7_1 7_2 7_3 7_4 7_5 7_6 7_7 7_8 7_9 6_0 6_1 6_2 6_3 6_4 6_5 6_6 6_7 6_8 6_9 5_0 5_1 5_2 5_3 5_4 5_5 5_6 5_7 5_8 5_9 4_0 4_1 4_2 4_3 4_4 4_5 4_6 4_7 4_8 4_9 3_0 3_1 3_2 3_3 3_4 3_5 3_6 3_7 3_8 3_9 2_0 2_1 2_2
Planning File Systems and LUNs with Shared Switched Storage 3 Part of a sample LUN and Storage Group worksheet follows.
Planning File Systems and LUNs with Shared Switched Storage 3 Storage Group will be dedicated (not accessible by another system in a cluster), mark the Dedicated box at the end of its line; if the Storage Group will be accessible to one or more other servers in a cluster, write the hostnames of all servers and mark the Shared box. LUN Details Worksheet Use the following LUN details worksheet to plan the individual LUNs. Complete as many of these as needed for all LUNs in your SAN.
Planning File Systems and LUNs with Shared Switched Storage 3 LUN Details Worksheet Storage system (complete this section once for each storage system) Storage-system number or name:______ Storage-system installation type ❏ Unshared Direct ❏ Shared-or-Clustered Direct ❏ Shared Switched SP FC-AL address ID (unshared only): SP A:_____SP B:_____ SP memory (Mbytes): SP A:___ SP B:____ ❏ Use for caching Read cache size:__ MB Write cache size: __ MB ❏ Use for RAID 3 RAID Group ID: Size,GB: ❏ RAID 5 ❏ RAID 1/0
Planning File Systems and LUNs with Shared Switched Storage 3 LUN Details Worksheet Storage system (complete this section once for each storage system) Storage-system number or name:__SS1____ Storage-system installation type ❏ Unshared Direct ❏ Shared-or-Clustered Direct X ❏ Shared Switched SP FC-AL address ID (unshared only): SP A:_____SP B:_____ SP memory (Mbytes): SP A:_256__ SP B:_256__ ❏ Use for caching Read cache size:_80_ MB Write cache size: _160_ MB Cache page size:_2__KB ❏ Use for RAID 3 RAID Gr
Planning File Systems and LUNs with Shared Switched Storage 3 Completing the LUN Details Worksheet Complete the header portion of the worksheet for each storage system as described below. Copy the blank worksheet as needed. Storage-system entries Storage-system installation type, specify Shared Switched storage. SP FC-AL address ID. This does not apply to shared storage, in which the switch determines the address of each device. Use memory for caching.
Planning File Systems and LUNs with Shared Switched Storage 3 LUN ID. The LUN ID is a hexadecimal number assigned when you bind the disks into a LUN. By default, the ID of the first LUN bound is 0, the second 1, and so on. Each LUN ID must be unique within the storage system, regardless of its Storage Group or RAID Group. The maximum number of LUNs supported on one host-bus adapter depends on the operating system. RAID Group ID. This ID is a hexadecimal number assigned when you create the RAID Group.
Planning File Systems and LUNs with Shared Switched Storage 3 per RAID Group may adversely impact performance. If you want multiple LUNs per RAID Group, then use a RAID Group/LUN series of entries for each LUN. Disk IDs. Enter the ID(s) of all disks that will make up the LUN or hot spare. These are the same disk IDs you specified on the previous worksheet. For example, for a RAID 5 Group in the DPE (enclosure 0, disks 2 through 6), enter 0_2, 0_3, 0_4, 0_5, and 0_6. SP.
Planning File Systems and LUNs with Shared Switched Storage 3 File system, partition, or drive. Write the name of the file system, partition, or drive letter you will create on this LUN. This is the same name you wrote on the application worksheet. On the following line, write any pertinent notes; for example, the file system mount- or graft-point directory pathname (from the root directory).
Planning File Systems and LUNs with Shared Switched Storage 3 3-18 EMC Fibre Channel Storage-System Configuration Planning
4 Invisible Body Tag Planning LUNs and File Systems with Unshared Direct Storage This chapter shows sample RAID and LUN configurations with direct storage installations and then provides worksheets for planning your own storage installation. Topics are • Dual SPs and Paths to LUNs ............................................................4-2 • Unshared Direct and Shared-or-Clustered Direct Storage...........4-2 • Planning Applications and LUNs ...................................................
Planning LUNs and File Systems with Unshared Direct Storage 4 Dual SPs and Paths to LUNs If a storage system has two SPs, there are two routes to its LUNs. If the server has two adapters and the storage system has two SPs, Application Transparent Failover (ATF). ATF can automatically switch to the other path, without disrupting applications, if a device (such as a host-bus adapter, cable, or SP) fails.
Planning LUNs and File Systems with Unshared Direct Storage 4 The storage system disk IDs and LUNs are as follows. The LUN capacities shown assume 36-Gbyte disks.
Planning LUNs and File Systems with Unshared Direct Storage 4 Planning Applications and LUNs This section helps you plan your unshared (direct) storage use — applications you want to run and the LUNs that will hold them. The worksheets to help you do this include • Application and file system planning worksheet - lets you outline your storage needs. • LUN planning worksheet - lets you decide on the disks that will compose the LUNs. • LUN details worksheet - lets you plan each LUN in detail.
Planning LUNs and File Systems with Unshared Direct Storage 4 Application and LUN Planning Worksheet Application File system (if any) RAID type of LUN LUN ID (hex) Disk space required (Gbytes) Server name and operating system A sample worksheet begins as follows: RAID type of LUN LUN ID (hex) Disk space required (Gbytes) Server name and operating system Mail 1 RAI D 5 0 72 Gb Server1, NT Mail 2 RAI D 5 1 72 Gb Server1, NT Database index RAI D 1 2 18 Gb Server2, NT Application Fil
Planning LUNs and File Systems with Unshared Direct Storage 4 RAID configuration. For example, for drive T, assign the volume ID RAID5_T. The volume label will then identify the drive letter. RAID type of LUN is the RAID Group type you want for this partition, file system, or logical volume. The features of RAID types are explained in Chapter 2. For a RAID 5, RAID 1, RAID 1/0, and RAID 0 Group, you can create one or more LUNs on the RAID Group.
Planning LUNs and File Systems with Unshared Direct Storage 4 LUN Planning Worksheet - Rackmount Full-fibre storage system 11_0 11_1 11_2 11_3 11_4 11_5 11_6 11_7 11_8 11_9 10_0 10_1 10_2 10_3 10_4 10_5 10_6 10_7 10_8 10_9 9_0 9_1 9_2 9_3 9_4 9_5 9_6 9_7 9_8 9_9 8_0 8_1 8_2 8_3 8_4 8_5 8_6 8_7 8_8 8_9 7_0 7_1 7_2 7_3 7_4 7_5 7_6 7_7 7_8 7_9 6_0 6_1 6_2 6_3 6_4 6_5 6_6 6_7 6_8 6_9 5_0 5_1 5_2 5_3 5_4 5_5 5_6 5_7 5_8 5_9 4_0 4_1 4_2 4_4 4_5 4_6 4_7 4_8
Planning LUNs and File Systems with Unshared Direct Storage 4 LUN Planning Worksheet - Deskside Full-fibre storage system 0_0 1_0 2_0 0_1 1_1 2_1 0_2 1_2 2_2 0_3 1_3 2_3 0_4 1_4 2_4 0_5 1_5 2_5 0_6 1_6 2_6 0_7 1_7 2_7 0_8 1_8 2_8 0_9 1_9 2_9 Storage system number_____ 4-8 LUN number_______RAID type ___ Cap. (Gb) _____ LUN number_______RAID type ___ Cap. (Gb) _____ LUN number_______RAID type ___ Cap. (Gb) _____ LUN number_______RAID type ___ Cap.
Planning LUNs and File Systems with Unshared Direct Storage 4 A sample LUN worksheet follows. 2_0 LUN 2 RAID 1 LUN 0 2_1 2_2 2_3 2_4 2_5 2_6 2_7 2_8 2_9 1_0 1_1 1_2 1_3 1_4 1_5 1_6 1_7 1_8 1_9 0_0 0_1 0_2 0_3 0_4 0_5 0_6 0_7 0_8 0_9 LUN 1 RAID 5 RAID 5 0 0_0, 0_1, 0_2, 0_3, 0_4 144Disk IDs_________________________________________ 5 Cap. (Gb) _____ LUN number_______RAID type ___ 1 144 0_5, 0_6, 0_7, 0_8, 0_9 1 LUN number_______RAID type ___ Cap.
Planning LUNs and File Systems with Unshared Direct Storage 4 LUN Details Worksheet Storage system (complete this section once for each storage system) Storage-system number or name:______ Storage-system installation type ❏ Unshared Direct ❏ Shared-or-Clustered Direct ❏ Shared Switched SP FC-AL address ID (unshared only): SP A:_____SP B:_____ SP memory (Mbytes): SP A:______ SP B:______ VUse for caching Read cache size:___ MB Write cache size: ___ MB Cache page size:___KB VUse for RAID 3 RAID Group ID: Si
Planning LUNs and File Systems with Unshared Direct Storage 4 LUN Details Worksheet Storage system (complete this section once for each storage system) Storage-system number or name:__1____ Storage-system installation type X Unshared Direct ❏ Shared-or-Clustered Direct ❏ Shared Switched ❏ SP FC-AL address ID (unshared only): SP A:_____SP B:_____ SP B:_128__ SP memory (Mbytes): SP A:_128__ VUse for caching Read cache size:_40_ MB Write cache size: _80_ MBCache page size:_2__KB X VUse for RAID 3 RAID Group
Planning LUNs and File Systems with Unshared Direct Storage 4 Completing the LUN Details Worksheet Complete the header portion of the worksheet for each storage system as described below. Copy the blank worksheet as needed. Sample completed LUN worksheets appear later. Storage-System Entries Storage-system configuration. Specify Unshared Direct (one server) or Shared-or-Clustered Direct (two servers). For any multiple-server configuration, each server will need cluster software. SP FC-AL address ID.
Planning LUNs and File Systems with Unshared Direct Storage 4 you would specify 80 Mbytes for the read cache and 160 Mbytes for the write cache. Cache page size. This applies to both read and write caches. It can be 2, 4, 8, or 16 Kbytes. As a general guideline, we suggest For a general-purpose file server — 8 Kbytes For a database application — 2 or 4 Kbytes The ideal cache page size depends on the operating system and application. Use memory for RAID 3.
Planning LUNs and File Systems with Unshared Direct Storage 4 For example, • A five-disk RAID 5 or RAID 3 Group of 36-Gbyte disks holds 144 Gbytes; • An eight-disk RAID 1/0 Group of 36-Gbyte disks also holds 144Gbytes; • A RAID 1 mirrored pair of 36-Gbyte disks holds 36 Gbytes; and • An individual disk of a 36-Gbyte disk also holds 36 Gbytes. Each disk in the RAID Group must have the same capacity; otherwise, you will waste disk storage space. LUN Size.
Planning LUNs and File Systems with Unshared Direct Storage 4 units that will benefit from it. Read and write caching recommendations follow. Table 4-1 RAID 5 Cache Recommendations for Different RAID Types RAID 3 Highly Recommended Not allowed RAID 1 RAID 1/0 RAID 0 Individual Unit Recommended Recommended Recommended Recommended Servers that can access this LUN. Enter the name of each server that will be able to use the LUN.
Planning LUNs and File Systems with Unshared Direct Storage 4 4-16 EMC Fibre Channel Storage Systems Configuration Planning Guide
5 Invisible Body Tag Storage System Hardware This chapter describes the storage-system hardware components. Topics are • • • • • • • Hardware for Shared Storage...........................................................5-3 Hardware for Unshared Storage......................................................5-6 Planning Your Hardware Components ........................................ 5-11 Hardware Data Sheets.....................................................................
Storage System Hardware 5 The storage systems attach to the server and the interconnect components described in Chapter 1.
Storage System Hardware 5 Hardware for Shared Storage The primary hardware component for shared storage is a ten-slot Disk-array Processor Enclosure (DPE) with two storage processors (SP). The DPE can support up to nine separate 10-slot enclosures called Disk Array Enclosures (DAEs) for a total of 100 disks. Shared storage requires two SPs and the Access Logix software option.
Storage System Hardware 5 DAE DAE DAE DAE DPE DPE SPs Standby power supplies (SPSs) Front Figure 5-3 Disks 5-4 Rear EMC1744 Rackmount System with DPE and DAEs The disks — available in differing capacities — fit into slots in the enclosure. Each module has a unique ID that you use when binding or monitoring its operation. The ID is derived from the enclosure address (always 0 for the DPE, settable on a DAE) and the disk module slot numbers.
Storage System Hardware 5 Disk Modules and Module IDs — Rackmount DPE-Based System 10 11 12 13 14 15 16 17 18 19 0 1 2 3 4 5 6 7 8 9 Storage Processor (SP) The SP provides the intelligence of the storage system. Using its own operating system (called Core Software), the SP processes the data written to or read from the disk modules, and monitors the modules themselves. An SP consists of a printed-circuit board with memory modules (DIMMs), and status lights.
Storage System Hardware 5 Hardware for Unshared Storage Unshared storage systems are less costly and less complex than shared storage systems. They offer many shared storage system features; for example, you can use multiple unshared storage systems with multiple servers. However, with multiple servers, unshared storage offers less flexibility and security than shared storage, since any user with write access to privileged server files can enable access to any storage system.
Storage System Hardware 5 Disk-array processor enclosure (DPE) Deskside DPE with DAE 30-slot deskside Figure 5-5 Rackmount DPE, one enclosure, supports up to 9 DAEs Intelligent disk-array enclosure (iDAE) 10-slot deskside Rackmount Storage System Types for Unshared Storage Hardware for Unshared Storage 5-7
Storage System Hardware 5 The following figure shows some components of a deskside DPE. Components for rackmount types are similar.
Storage System Hardware 5 Figure 5-7 0 1 2 3 10 11 12 13 4 5 6 7 8 9 14 15 16 17 18 19 0 1 2 3 4 5 6 7 8 9 Disks and Disk IDs Storage Processor (SP) The SP provides the intelligence of the storage system. Using its own operating system (called Core Software), the SP processes the data written to or read from the disk modules, and monitors the modules themselves. An SP consists of a printed-circuit board with memory modules (DIMMs), status lights, and switches for setting FC-AL addresses.
Storage System Hardware 5 Server Adapter Adapter Storage system DAE(s) DPE SP A SP B Cables FC loop 1 FC loop 2 Figure 5-8 Storage System with Two SPs Connected to the Same Server Highly available cluster Adapter Adapter Adapter Server 2 Adapter Server 1 Storage system DAE(s) DPE SP A SP B FC loop 1 FC loop 2 Figure 5-9 Storage System with Two SPs Connected to Different Servers Either SP can control any LUN in the storage system, but only one SP at a time can control a LUN.
Storage System Hardware 5 Storage-system caching provides significant performance enhancement. Read caching is available with one or two SPs. Mirrored write caching, particularly helpful with RAID 5 I/O, requires two SPs (to mirror one another, for cache integrity) and a Standby Power Supply (SPS) to enable the SPs to write their cached data to disk if power fails.
Storage System Hardware 5 Configuration Tradeoffs - Unshared Storage For each storage-system enclosure, you have two important areas of choice: rackmount or deskside model, and high-availability options. Generally, rackmount systems are more versatile; you can add capacity in a cabinet without consuming more floor space. However, rackmount systems require additional hardware, such as cabinets and mounting rails, and someone must connect power cords and cables within them.
Storage System Hardware 5 Table 5-1 High-Availability Options, Deskside Unshared Storage Deskside System Type HA Level PDUs SPs LCCs Power Supplies Disks SPS Units DPE Minimum 1 1 1 DPE 1 DAE 1 DPE 1 DAE 5 (without write cache) 0 (without write cache) 1 (write cache) Maximum 2 2 4 (2 DPE 2 DAE) 4 (2 DPE 2 DAE) 10 (write cache or RAID 3) 2 Minimum 1 1 n/a (10-slot) 2 (30-slot) 1 3 (without write cache) 5 (write cache or RAID 3) 0 (without write cache) 1 (write cache Maximum
Storage System Hardware 5 Hardware Data Sheets The hardware data sheets shown in this section provide the plant requirements, including dimensions (footprint), weight, power requirements, and cooling needs, for DPE, iDAE, DAE, and 30-slot SCSI disk systems. Sections on cabinets and cables follow the data sheets. DPE Data Sheet For shared storage, a rackmount DPE and one or more rackmount DAEs are required. For unshared storage, you can use a rackmount or deskside DPE and DAE(s).
Storage System Hardware 5 Power requirements Voltage rating: 100 V ac to 240 V ac –10%/+15%, single-phase, 47 Hz to 63 Hz; power supplies are auto-ranging Current draw: At 100 v ac input – Deskside DPE/DAE: 12.0 A; Rackmount DPE: 8.0 A max; SPS: 1.0 A max per unit during charge Power consumption: Deskside DPE/DAE: 1200 VA; Rackmount DPE: 800 VA max SPS: 1.0 A per unit during charge Power cables (single or dual) ac inlet connector: IEC 320-C14 power inlet Deskside power cord: USA: 1.8 m (6.
Storage System Hardware 5 iDAE Data Sheet You can use a rackmount or deskside DPE and DAE(s) for unshared storage. The iDAE dimensions and requirements are shown in the following figure. Dimensions and Requirements, iDAE Deskside 30-slot model Depth 74.7 cm (30 in) Deskside 10-slot model Width 52.1 cm (20.6 in) Depth 74.7 cm (30 in) Rackmount model Width 25 cm (9.8 in) Depth 63.3 cm (24.9 in) Width 44.5 cm (17.5 in) Height 68 cm (26.8 in) SPS mounting tray, height 4.44 cm (1.
Storage System Hardware 5 Power cables (single or dual) ac inlet connector: IEC 320-C14 power inlet Deskside power cord: USA: 1.8 m (6.
Storage System Hardware 5 DAE Data Sheet The DAE storage-system dimensions and requirements are shown in the following figure. Dimensions and Requirements, DAE Deskside 30-slot model Depth 74.7 cm (30 in) Deskside 10-slot model Width 52.1 cm (20.6 in) Depth 74.7 cm (30 in) Rackmount model Width 25 cm (9.8 in) Depth 63.3 cm (24.9 in) Width 44.5 cm (17.5 in) Height 68 cm (26.8 in) Height 15.4 cm (6.1 in) 3.
Storage System Hardware 5 Power cables (single or dual) ac inlet connector: IEC 320-C14 power inlet Deskside power cord: USA: 1.8 m (6.
Storage System Hardware 5 Cabinets for Rackmount Enclosures Prewired 19-inch-wide cabinets, ready for installation, are available in the following dimensions to accept rackmount storage systems. Vertical Space Exterior Dimensions Comments 173 cm or 68.25 in (39 NEMA units or U; one U is 1.75 in) Height: 192 cm (75.3 in) Width: 65 cm (25.5 in) Depth: 87 cm (34.25 in) plus service clearances, which are 90 cm (3 ft), 30 cm front and 60 cm back Accepts combinations of: DPEs at 6.5 U, iDAEs at 3.
Storage System Hardware 5 Cable and Configuration Guidelines We recommend that all copper-interconnected nodes be connected to a common ground grid. The common grid is not needed for optical interconnections. Copper cable allows up to 30 meters (99 feet) between nodes or switches and hubs. Optical cable allows significantly longer distances. This is a major advantage of optical cable.
Storage System Hardware 5 You can use any existing FDDI, multimode, 62.5 micron cable with good connections to attach servers, switches or hubs, and storage systems. These cables must be dedicated to storage-system I/O. Table 5-3 Cable Sizes — Optical Length Typical Use 5 m (16.
Storage System Hardware 5 Table 5-4 Cable Sizes — Copper Length Typical Use 0.3 m (1 ft), non-equalized Connecting DPE/DAE and DAE LCCs 1.0 m (3.3 ft), non-equalized Connecting a hub to an adjacent storage system 3 m (10 ft), non-equalized Connecting a hub to a storage system in the same cabinet, or daisy chaining from one cabinet to an adjacent cabinet 5 m (16.
Storage System Hardware 5 Hardware Planning Worksheets Following are worksheets to note the hardware components you want. There are two types of configuration: • Shared storage • Unshared storage Hardware for Shared Storage Server 1 ...
Storage System Hardware 5 Hardware Component Worksheet for Shared Storage Number of servers:____ Adapters in servers:____ Switches: 16-port:____8-port:____ Rackmount DPEs:_____SP/LCC pairs:_____PSs:_____SPSs:____ Rackmount cabinets:___ Rackmount DAEs:_____ LCCs:_____PSs:_____ Cables between server and switch - Cable A, optical only Cable A1, Optical: Number:____ ....................................................... ..............Length________m or ft Cable A2, Optical: Number:____ ....................
Storage System Hardware 5 Highly available cluster File Server Mail Server Database Server Adapter Adapter Adapter Adapter Adapter Adapter A2 Switch 1 Path 1 Path 2 DAE DAE DAE DAE DAE DAE DPE LCC LCC LCC LCC LCC LCC LCC Cable between switch and storage system LCC LCC LCC LCC LCC LCC LCC D1 Switch 2 E1 Cable between storage systems or enclosures SP B SP A Storage system Figure 5-12 5-26 Sample Shared Storage Installation EMC Fibre Channel Storage Systems Configuration Planning Guide
Storage System Hardware 5 Hardware Component Worksheet for Shared Storage Number of servers:__3_ Adapters in servers:__6_ Switches: 16-port:____8-port:__2 Rackmount DPEs:__ 1___SP/LCC pairs:__2___PSs:___2__SPSs:__2__ Rackmount cabinets:_1__ Rackmount DAEs:__6___ LCCs:___12__PSs:___12__ Cables between server and switch - Cable A, optical only Cable A1, Optical: Number:_____ ...................................................... ............. Length______m or ft Cable A2, Optical: Number:__4__ .........
Storage System Hardware 5 Server 1 E2 iDAE/DPE LCC LCC E1 FC Loop 1 FC Loop 2 E2 E1 SP B SP A Storage system Figure 5-13 5-28 Cable Identifier — Unshared System without Hubs EMC Fibre Channel Storage Systems Configuration Planning Guide Adapter LCC LCC DAE A2 LCC LCC DAE A1 Adapter Adapter Adapter A1 Server 2 A2
Storage System Hardware 5 Server 1 ...
Storage System Hardware 5 Hardware Component Worksheet for Unshared Storage Number of servers: Adapters in servers:______ Hubs (copper):_____ MIAs (copper to optical):______ DPE-based and DAE-only storage systems: Rackmount DPEs:_____SP/LCC pairs:_____ PSs:_____SPSs:____ Rackmount cabinets:___ Rackmount iDAEs:_____SPs:_____ PSs:_____SPSs:____ Rackmount cabinets:___ Rackmount DAEs:_____ LCCs:_____PSs:_____ Deskside DPEs:_____SP/ LCC pairs:_____DAE LCCs:____ DPE PSs:____ DAE PSs:____ SPSs:__ Deskside iDAEs:
Storage System Hardware 5 Server Adapter A1 Cable between server and storage system E1 LCC LCC A1 DAE iDAE/DPE E1 Cable between storage systems or enclosures Included with deskside DPE SP A Figure 5-15 Sample Unshared Deskside System — Basic Configuration Sample Component Worksheet Hardware Component Worksheet for Unshared Storage Number of servers: 1 Adapters in servers:___1___ Hubs (copper):______ MIAs (copper to optical):_____ DPE-based and DAE-only storage systems: Rackmount DPEs:_____SP/LCC
Storage System Hardware 5 Server Adapter Adapter A1 Cable between server and storage system E1 Cable between storage systems or enclosures included with deskside DPE DAE DAE LCC LCC LCC LCC LCC LCC A1 DAE E1 E2 Cable between storage systems or enclosures E2 DPE LCC LCC LCC LCC DAE SP B SP A FC Loop 1 FC Loop 2 Figure 5-16 5-32 Storage system Sample Unshared Deskside System — Dual-Adapter/Dual-SP Configuration EMC Fibre Channel Storage Systems Configuration Planning Guide
Storage System Hardware 5 Sample Component Worksheet Hardware Component Worksheet for Unshared Storage Number of servers: 1 Adapters in servers:__2__ Hubs (copper):______ MIAs (copper to optical):_______ DPE-based and DAE-only storage systems: Rackmount DPEs:_____SP/LCC pairs:_____ PSs:_____SPSs:____ Rackmount cabinets:___ Rackmount iDAEs:_____SPs:_____ PSs:_____SPSs:____ Rackmount cabinets:___ Rackmount DAEs:_____ LCCs:_____PSs:_____ Deskside DPEs:__1_SP/ LCC pairs:__2__DAE LCCs:__2__ DPE PSs:_2_ DAE PSs
Storage System Hardware 5 Adapter Adapter Adapter Server 2 Adapter Cable between server and hub Server 1 A1 A2 A2 Hub 1 Hub 2 D2 DAE DAE DAE DAE DPE LCC LCC LCC LCC LCC Cable between hub and storage system LCC LCC LCC LCC LCC D1 E1 Cable between storage systems or enclosures SP B SP A Storage system 1 Figure 5-17 DAE DAE DAE DAE DPE D2 D1 Cable between hub and storage system LCC LCC LCC LCC LCC LCC LCC LCC LCC LCC FC Loop 1 FC Loop 2 5-34 Cable between server and hub SP B SP A St
Storage System Hardware 5 Hardware Component Worksheet for Unshared Storage Number of servers: 2 Adapters in servers:___4____ Hubs:___2____ MIAs (optical to copper):_______ DPE-based and DAE-only storage systems: Rackmount DPEs:_____SP/LCC pairs:__4___ Rackmount iDAEs:_____SPs:_____ Rackmount DAEs:__ 8 ___ PSs:___4__SPSs:_2__ Rackmount cabinets:_2__ PSs:_____SPSs:____ Rackmount cabinets:___ LCCs:__16_PSs:__16___ Deskside DPEs:_____SP/ LCC pairs:_____DAE LCCs:____ DPE PSs:____ DAE PSs:____ SPSs:__ Desksi
Storage System Hardware 5 5-36 EMC Fibre Channel Storage Systems Configuration Planning Guide
6 Storage-System Management This chapter explains the management applications you can use to manage storage systems from servers. Topics are • Using Navisphere Manager Software .............................................6-3 • Storage Management Worksheets ...................................................
Storage-System Management 6 Navisphere software lets you bind and unbind disks, manipulate caches, examine storage-system status and logged events, transfer control from one SP to another, and examine events recorded in storage system event logs. Navisphere products have two parts: a graphical user interface (GUI) and an Agent application. The GUIs run on a management station, accessible from a common framework, and communicate with storage systems through the Agent that runs on each server.
Storage-System Management 6 Using Navisphere Manager Software Navisphere Manager software (Manager) lets you manage multiple storage systems connected to servers on a TCP/IP network. Manager offers extensive management features and includes comprehensive on-line help. Manager is required for shared storage and optional for unshared storage. Manager runs on a management station which is a Windows NT® or Windows® 2000 host.
Storage-System Management 6 File Server Management station and server Mail Server Management station and server Operating system A Navisphere Manager Navisphere Agent Failover software Operating system A Navisphere Manager Navisphere Agent Failover software Switch fabric Database Server Production Server Operating system B Operating system C Navisphere Agent Failover software Navisphere Agent Failover software LAN Switch fabric Path 1 Path 2 Figure 6-1 Accts Server Management station and serve
Storage-System Management 6 Storage Management Worksheets This section includes two worksheets: one for shared storage and one for unshared storage. The following worksheet will help you plan your storage system management environment. For each host, complete a section. For the shared storage worksheet, complete the management station hostname and operating system; then decide whether you want the Navisphere Analyzer and/or Event Monitor and, if so, mark the appropriate boxes.
Storage-System Management 6 For unshared storage (unshared direct or shared-or-clustered direct), for each host, choose a Navisphere product. The host may be a management station that is not a server (complete only the Manager section); it may be a management station that is a server (complete the Manager section and mark the Agent box), or it may be a server (mark the Agent box).
Storage-System Management 6 Management Utility Worksheet – Unshared Storage Hostname: Operating system: Storage system type: VDPE-based ViDAE-based Software: V Navisphere Manager/Agent V Navisphere Analyzer V Navisphere Event Monitor List all the servers this host will manage. Each managed server must run an Agent of the same type as its operating system.
Storage-System Management 6 6-8 EMC Fibre Channel Storage-System Configuration Planning
Index A ac power requirements DAE-only storage system 5-18 DPE storage system 5-14 iDAE storage system 5-16 application planning shared storage 3-6 unshared storage 4-4 application worksheet, completing shared 3-6, 4-4 unshared or clustered direct 4-4 applications for RAID Groups, sample 2-19 LUN and file system planning 3-6 application-transparent failover (ATF) software 6-2 array, see disk-array storage system attach kit, see host-bus adapter driver package audience for manual xi C cabinets for rackmoun
Index site requirements 5-18 weight 5-18 data sheets, hardware 5-14 device name, operating system 3-16, 4-15 disk capacity defined 4-14 capacity, defined 4-13 configuration types compared 2-12 configuration, see also RAID Group IDs 3-4, 4-2 LUN types planning 3-6 mirror, defined 2-2 number on worksheet 4-14 RAID types guidelines 2-17 sample applications 2-19 shared storage examples 3-3 striping, defined 2-2 unit number on worksheet 3-8, 4-13 unshared storage example 4-2 examples 4-2 Disk Array Enclosure (D
Index RAID 0, defined 2-8 RAID 1 mirrored pair 2-7 RAID 1/0 Group defined 2-8 RAID 3 Group, defined 2-5 RAID 5 Group, defined 2-4 shared storage, examples 3-3 disk mirror, defined 2-2 in RAID Group 2-3 number on worksheet 3-8, 3-15, 4-13, 4-14 paths to 3-2, 4-2 planning 3-6 RAID types compared 2-12 guidelines 2-17 sample applications 2-19 SP control of 5-10 unshared storage examples 4-2 unshared, examples 4-2 worksheets 3-13, 4-10, 4-12 iDAEstorage system 5-16 high availability options for unshared storag
Index P page size, cache 3-14, 4-13 parallel access array, see RAID 3 Group paths to LUNs 3-2, 4-2 performance, RAID Group 2-13 physical disk unit, see LUN (logical unit) physical volume, see LUN (logical unit) planning LUNs and file systems 3-6 plant requirements DAE 5-18 iDAE 5-16 plug types 5-20 power requirements DAE-only storage system 5-18 DPEstorage system 5-14 iDAE storage system 5-16 power supplies (PSs), DPE storage system 5-8 sample applications 2-19 when to use 2-17 RAID 1/0 Group defined 2-8
Index SP (storage processor) description 5-5, 5-9 FC-AL address ID 3-14, 4-12 SPS (standby power supply) DPE storage system 5-8 storage components shared storage 5-3 storage managment worksheets 6-5 storage system caching on worksheet 4-14 storage-system caching as feature 5-11 stripe with RAID 1/0, RAID 0 2-8 with RAID 5, RAID 3 2-4 stripe, defined 2-2 switch description 1-5 in sample shared storage configuration 3-3 introduced 1-3 switch fabric introduced 1-3 T temperature requirements DAE-only storage
Index i-6 EMC Fibre Channel Storage Systems Configuration Planning Guide
