HP StorageWorks Command Console V2.5 User Guide (AA-RV1UA-TE, March 2005)
Table Of Contents
- Contents
- About this Guide
- About SWCC
- Using Command Console
- Setting Up Notification
- Required Components for Notification
- Setting Up Pager Notification
- Using SWCC with a Third-Party Storage Management Program
- Using Event Logging on the Client System to Monitor Your Subsystem
- Interpreting Agent Email Messages
- About Event Information Fields
- Mapping State Change Digits to RAID System Components
- Table 11: State Change Digit Position and Corresponding RAID system Component
- The First Digit of the State Change Field (Overall RAID System)
- The Second Digit of the State Change Field (Disks)
- The Third Digit of the State Change Field (Power Supply)
- The Fourth Digit of the State Change Field (Fans)
- The Fifth Digit of the State Change Field (Battery)
- The Sixth Digit of the State Change Field (Temperature)
- The Seventh Digit of the State Change Field (This_Controller)
- The Eighth Digit of the State Change Field (Communications LUN)
- The Ninth Digit of the State Change Field (Other_Controller)
- The 10th Digit of the State Change Field (External Factors)
- The 11th Digit of the State Change Field (Logical Units)
- Using the Storage Window
- Why Use the Storage Window?
- Configuring a Controller
- Creating Virtual Disks
- Deleting Virtual Disks
- Modifying Virtual Disks
- Configuring the Operating System to Recognize Virtual Disk Changes
- Setting Passwords and Security Options (Network Only)
- Managing and Creating Spare Devices
- Using Configuration Files
- Understanding the Icons
- CLI Window
- Integrating SWCC with Insight Manager
- Troubleshooting
- Troubleshooting Connection Problems
- Invalid Network Port Numbers During Installation
- Network Port Assignments for UNIX-Client/Server Systems
- DHCP and WINS
- Connecting Via the Host SCSI Port
- “Access Denied” Message
- Adding New System by Using Internet Protocol Address May Cause Client to Stop Responding
- “No Agent Running” Message When Adding System to the Navigation Tree
- Troubleshooting the Client
- Authorization Error When Adding an Agent System
- Cannot Open Storage Window
- Client Hangs When LUN Is Deleted
- CLI RUN Commands
- Event Notification for Subsystems Connected to a Client System
- Invalid or Missing Fault Displays and Event Logs
- Pager Notification Continues After Exiting the Command Console Client
- Reconfiguration After Controller Replacement
- Some Graphics Do Not Scale Well with Large Fonts
- Starting Client from the Command Prompt
- Warning Message Windows
- Virtual Disk Recovery from a Configuration File
- Troubleshooting the HS-Series Agents
- Cluster Integration for the HS-Series Agents
- Troubleshooting Connection Problems
- Using the Command Console LUN
- Interpreting SNMP Traps
- Glossary
- Index
Glossary
135Command Console V2.5 User Guide
port The hardware and software used to connect a host controller to
a communications bus, such as a SCSI bus or serial bus. On the
device side of the controller, a port is called a channel. The term
is sometimes also used to refer to the logical TCP/IP port that is
used to access the Agent over the network.
port/target/LUN (PTL) For HS-series controllers, the complete address of a physical
disk on a device bus from which the controller derives the
device name. The name, “disk11300”, for instance, indicates a
physical device at port 1, target 13, and LUN 00.
RAID (Redundant Array
of Independent Disks)
RAID is an industry-standard set of techniques for configuring
an array of storage devices into host-accessible, virtual disks
with various cost, availability, and performance options.
Some common RAID levels are RAID 0, RAID 1, RAID 0+1,
RAID 3, RAID 3/5,and RAID 5.
RAID 0 RAID 0 is the industry-standard name for disk striping. A
RAID 0 virtual disk is also called a striped virtual disk.
In a RAID 0 virtual disk, host data is divided into strips spread
in a stripe across virtual disk member devices. This technique
provides much faster read and write performance than does
reading and writing to a single device. A three-device, RAID 0
virtual disk has potentially three times the bandwidth of a single
device because three separate small pieces of host data move in
parallel.
RAID 0 is the only RAID level that does not provide some level
of data redundancy. Because more devices can potentially fail
and because there is no way to recover data for a failed device,
RAID 0 virtual disks have less availability than
equivalent-sized single disks.