Dell PowerVault™ TL4000/TL2000 Fail over Guide Dell PowerVault™ TL4000/TL2000 Fail over Configuration Guide This document describes the fail over feature, outlines the supported fail over configurations for the Dell PowerVault™ TI4000 and TL2B00 products and provides instructions for configuring the library, drives, and host server for fail over. Please note the supported configurations are closely related to the LTO drive generation and form factor installed in the tape Library.
Dell PowerVault™ TL4000/TL2000 Fail over Guide What is Fail over? Fail over is an optional feature available for the Dell Vaulter ™ TLALOC and TL2060 Taps Briggs. Fat lover is designed 1o provide automatic path fail over to a reconfigured redundant path in the event that a host adapter or control path drive is lost without besetting the current job n process. Fail over provides error recovery on an alternate path when a permanent error occurs on the primary path.
Dell PowerVault™ TL4000/TL2000 Fail over Guide Drive ALTO Drives LT Drives ALTO Drives Configuration Supported Fail over Supported | Fat lover Supported | Allover Drive Support Drive Support Drive Support SC Full Height « Yes Na FC Full Height Yes No #C Half Height SAS Full Height Table ell Power Vault™ TLALOC Supported Allover Configuration Matrix *Requires a Dell PowerVault™ TLALOC Library configured with at least two LT Half Height drives; two homogeneous ALTO drives are needed i the same partition to su
Dell PowerVault™ TL4000/TL2000 Fail over Guide Two homogeneous {Fiber Channel ar SAS] LT full height drives in a single library partition Control path enabled on all drives in the partition Microsoft Windows 2003, Windows 2008 or Windows 2008 R2 installed in the host server Dell FowerVault™ TLALOC library device driver running on host server Comm Vault Galaxy 5.1 SP4 or after or Commonalty Simpatico 7.
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {one host, one switch, hwo FC drives) Figure 1t Reference Configuration 1 cloverleaf Reference Configuration 2: One Host with one dual port Fiber Channel HBA, two Fiber Channel switches and one Dell PowerVault™ with two Fiber Chance! drives Ins this configuration, fail over occurs if one of the following occurs: {ine of the drives in the library falls {hardware allure or drive s disconnected from the Fiber Channel switch} One of the swit
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {one host, two Has, two switches, two FC drives) L Figure 2: Reference Configuration 2 Fail over Reference Configuration 3: One host with dual port SAS Has and one Dell PowerVault™ with two SAS drives i1 this configuration, fail over occurs if one of the following occurs: One of the drives fails (hardware failure or is drive disconnected from the HBA port} One of the HBA ports fails One of the ports in a drive fails This configuration ta
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {one host with two HAS, and two SAS drives) Figure 3: Reference Configuration 3 Fail over Reference Configuration 4: One Host with dual Fiber Channel Has, two Fiber Channel switches and a Dell PowerVault™ with two Fiber Channel drives In this configuration, fail over occurs if ane or more of the following occurs: « One of the drives fails (hardware failure or is drive disconnected from the HBA port} One of the HBA controllers fails One o
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {riots with dual port Has, two FC switches, and two FC drives) L Figure &: Reference Configuration 4 cloverleaf Reference Configuration 5: Two hosts with dual Fiber Channel Has, two Fiber Channel switches and one Deli PowerVault™ with two Fiber Channel drives Ins this configuration, fail over occurs if one or more of the following scours: {ine of the drives fails (hardware failure or is drive disconnected from the HBA port} One of the HB
Dell PowerVault™ TL4000/TL2000 Fail over Guide Multiple Host Fail over configuration {rwo hosts, two FC switches, and 2 FC drives; W L0 Figure 5: Reference Configuration § Note that a SAN environment is susceptible to backup performance issues due to the sharing of resources across multiple hosts.
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {one host, two FU Has, One FC switch, three FC drives} m oL Figure 8: Reference Configuration 8 Important Note: This configuration can be extended 1o up two four LOTS drives cloverleaf Reference Configuration 9: Oue host with three dual port SAS Has and a Dell PowerVault™ configured with thees 548 drives In this configuration, fail over occurs if one or more of the fallowing occurs: One of the drives fails (hardware failure or is drive d
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {one host with three dual port Has, and three SAS drives) Figure 9: Reference Configuration 8 Important Note: This configuration can be extended up to four drives provided the host shysters can support four dual SAs Has. Heterogeneous validated configurations Heterogeneous configurations have some limitations, if the configuration canting LT and LILTS drives, the Library must contain only LTD media for proper operations.
Dell PowerVault™ TL4000/TL2000 Fail over Guide Fail over configuration {oe host, one switch, two FC drives} Figure 10: Reference Configuration 10 Fail over Reference Configuration 11: Oue host with two dual port SAS Has and one PowerVault™ with one LT SAS and LOTS SAS drive in this configuration, fail over occurs if one of the drives in the library fails {hardware failure or drive is disconnected from the HBASE.
Dell PowerVault™ TL4000/TL2000 Fail over Guide * Dell PowerVault™ TL2000/TLA00D Microsoft Windows device driver. The driver can be downloaded from Dell support site: dell.
Dell PowerVault™ TL4000/TL2000 Fail over Guide cede was sent to you. Please fallow the instructions on the fail over authorization code certificate to obtain your license key, The authorization code you wees sent will not activate the feature on the library. Please refer to the Dell PowerVault™ TL2000 Tape Library and TL400O Tape Library User's Guide for instructions on accessing and navigating the RMU.
Dell PowerVault™ TL4000/TL2000 Fail over Guide The library validates the entered license key and provides a “Fail over Enabled” message upon successful completion. In the event you enter the wrong license key, the library returns @ “Key Not Validated” Failure message. 1. Navigate to Configure -3 Path Fail over 2. Press the SELECT button to highlight the first digit of the 12-digit license key. 3, Use the UP and DOWN buttons to select each digit. 4. Press the SELECT button to move to the pet digit. 5.
Dell PowerVault™ TL4000/TL2000 Fail over Guide Note: Please follow the steps under Backup Application Setup and Support for Configuring Dual Est Bus Adapters even if your library configuration contains SAS drives or Fiber Channel direct attached drives.
Dell PowerVault™ TL4000/TL2000 Fail over Guide Appendix A Recovering from a failure event Recovering from a data path fail over event in the tape backup application The tape backup software application administrator must perform the necessary configuration maintenance to restore the backup shyster to full operation; there is no tape backup application configuration required. Drive reset In Comm Vault, navigate to the Storage Resourpes/Libiraries your galled Barbary” f Master pud.
