System information

Configure Storage Processor Sense Data

A DS4800 SP that runs Windows as a guest operating system should return Not Ready sense data when it is

quiescent. Returning Unit Attention might cause the Windows guest to fail during a failover.

Procedure

1 Determine the index for the LNXCL host type by using the following commands in a shell window.

Press Enter after each command.

SMcli.exe <ip-addr-for-SPA> show hosttopology; <Enter>

SMcli.exe <ip-addr-for-SPB> show hosttopology; <Enter>

The following commands assume that 13 is the index corresponding to LNXCL in the NVSRAM host type

definitions. If your storage processors have LNXCL at a different index, substitute that index for 13 in the

following commands.

2 Execute these commands for SPA to have it return Not Ready sense data.

Press Enter only after you enter all commands.

SMcli.exe <ip-addr-for-SPA>

set controller [a] HostNVSRAMBYTE [13,0x12]=0x01;

set controller [a] HostNVSRAMBYTE [13,0x13]=0x00;

reset Controller [a];

<Enter>

3 Execute these commands for SPB to have it return Not Ready sense data.

Press Enter only after you enter all commands.

SMcli.exe <ip-addr-for-SPB>

set controller [b] HostNVSRAMBYTE [13,0x12]=0x01;

set controller [b] HostNVSRAMBYTE [13,0x13]=0x00;

reset Controller [b];

<Enter>

NOTE If you use the DS4800 Storage Manager GUI, paste the configuration commands for both storage

processors into a single script and configure both storage processors at the same time. If you use

SMcli.exe, make individual connections to each SP.

IBM Systems Storage 8000 and IBM ESS800

The IBM Systems Storage 8000 and IBM ESS800 systems use an active-active array that does not need special

configuration in conjunction with VMware ESX/ESXi.

The following considerations apply when you use these systems:

Automatic resignaturing is not supported for these systems.

To use RDMs successfully, a given LUN must be presented with the same LUN ID to every ESX/ESXi host

in the cluster.

In the ESS800 Configuration Management tool, select Use same ID for LUN in source and target.

If you are configuring the ESX host to use boot from SAN from these arrays, disable the internal fibre port

for the corresponding blade until installation is finished.

Fibre Channel SAN Configuration Guide

38 VMware, Inc.