3PAR InForm OS 2.3.1 Upgrade Pre-Planning Guide

InForm OS Version 2.3.1 Release 2.3.1 Upgrade Pre-Planning Guide

◆ Microsoft KB 968287 for Windows 2008

■ The SCSI timeout value for RH4, SuSE 9 must be changed from the default of 30 seconds to

60 seconds. Refer to the specific Implementation Guide for changing the timeout value.

This needs to be performed for both Fibre Channel and iSCSI connected hosts.

■ QLogic drivers for SUSE 9, 10 and RH 4, 5 should be running with driver parameter PORT-

DOWN retry count (qlport down retry) set to 1. Refer to the specific Implementation Guide

for setting the value.

■ Solaris 10 MU3 with an iSCSI configuration is not supported for online updates.

■ For hosts using Oracle Clusterware, make the following required changes or adjustments

before performing an update:

◆ For 10gR1 10.1.0.x and 10gR2 10.2.0.1 (without bug 4896338 patched), set css miscount

to 195 (# set css miscount=195).

◆ For 10gR2 10.2.0.1 (with bug 4896338 patched) and later, 11gR1, and 11gR2, css

disktimeout must not be lowered from its default value of 200.

◆ For all Linux hosts with Oracle Clusterware, install and adjust Linux Hangcheck tick

parameters to 30 seconds.

■ Even if a direct connected HP host running Tachyon based HBAs (example A5158A, A6795A)

is configured correctly, if the HP host is not doing I/O during the online update, the update

may revert to the previous software level. The work-around for this requires ioscan or I/O to

be performed while doing an online update if the direct connect HP host does not have

mounted file systems. This is not applicable for QLogic based HP cards (example A6826A,

AB3790).

■ VMware ESX Server 3.0.1 servers with Emulex HBAs (lpfcdd-v732 driver) that connect to an

InServ Storage Server must have VMware patch ESX-1541239.

◆ VMware ESX / ESXi server - Active/active, with a path policy of MRU (Most Recent Used)

does not maintain or re-instate balancing of I/O load after a failover/failback multipath

event. This could leave I/O in an unplanned for and unbalanced state which may yield

significant I/O performance issues. Implementation of a MRU (Most Recent Used) path

policy is not recommended by 3PAR.

■ Site Recovery Manager and Adapter requires a newer version to be compatible with InForm

OS 2.3.1. Review VMware’s Site Recovery Manager Storage Partner Compatibility Matrix

located here for details: http://www.vmware.com/pdf/srm_storage_partners.pdf.