HP 3PAR Upgrade Pre-Planning Guide

See the HP 3PAR Windows Server 2012 and Windows Server 2008 Implementation Guide for
more details on configuring the load-balancing policy.
CAUTION: During an HP 3PAR OS online upgrade from HP 3PAR OS 2.2.4 to HP 3PAR OS
2.3.1, or from HP 3PAR OS 2.3.1 to HP 3PAR OS 3.1.1, for Windows Server 2008 and Windows
Server 2008 R2 failover clusters (including failover clusters as guest OS), HP requires that all data
LUNs that are presented to Microsoft failover clusters from the HP 3PAR StoreServ Storage first be
put into Maintenance Mode. Once the HP 3PAR OS online upgrade is completed, maintenance
mode must be turned off.
This does not apply to upgrades from HP 3PAR OS 3.1.1 (that is, those with HP 3PAR OS 3.1.1.x
as a base) and later.
To turn maintenance mode on or off for each of the cluster HP 3PAR disks, start the Failover Cluster
Manager application. Double-click the storage icon to open a Summary of Storage window. For
each of the clustered HP 3PAR data disks (not including any Quorum Witness disks), right-click
and select the More Actions option from the menu, and select either Turn on maintenance for the
disk or Turn off maintenance for the disk. For details, see Figure 1 (page 26):
NOTE: Does not apply to Windows Server 2008 systems running Veritas DMP driver.
Figure 1 Turning Maintenance Mode ON or OFF
Microsoft Hotfixes
Hotfixes may be required for the support of specific Windows functionality. For more information
about required hotfixes, see the Windows Server SPOCK configurations on the HP SPOCK website.
For Windows Server 2008 and Windows Server 2008 R2 using MS MPIO, Microsoft hotfixes
must be applied before upgrading the HP 3PAR StoreServ Storage. For more information about
26 Windows Server OS Guidelines