HP 3PAR Upgrade Pre-Planning Guide

by a consecutive odd-numbered node, on the HP 3PAR StoreServ Storage. (Valid pairings are
0 & 1, 2 & 3, 4 & 5, 6 & 7.)
• HP 3PAR software applications running on the HP 3PAR StoreServ Storage must be shut down.
• Ensure that no HP 3PAR Virtual Copy promotes are in progress. To confirm, check that no
volumes are in the started, cpp state. If any promotes are in progress, wait until the
promote finishes to begin the online upgrade.
HP 3PAR Remote Copy Guidelines
When planning HP 3PAR OS upgrades where HP 3PAR Remote Copy software is configured, the
following rules apply:
• It may not be feasible to upgrade all storage systems participating in the HP 3PAR Remote
Copy configuration at the same time, the allowed change between major versions of the HP
3PAR OS release is limited to 1 adjacent major release level, that is, from HP 3PAR OS 3.1.2
to 3.1.3 MU1. All maintenance update (MU) levels are considered to be in the same major
OS version. Examples:
◦ Support is provided for a maximum of 5 weeks between major version changes.
◦ A change of HP 3PAR OS versions 2.3.1 and 3.1.1 is supported for a period of 5 weeks.
◦ Conversely, an upgrade from HP 3PAR OS 3.1.1 to HP 3PAR OS 3.1.3 MU1 is not
supported, because these are not adjacent.
• HP 3PAR StoreServ Storage systems in the HP 3PAR Remote Copy configuration must be
upgraded to the same major OS version, as shown in Table 6 (page 14).
Table 6 Remote Copy Upgrades to HP 3PAR OS 3.1.3 MU1
Upgrade TypeUpgrade from HP 3PAR OS
Multihop upgrade
1
2.3.1
Multihop upgrade
1
3.1.1
Direct upgrade3.1.2
1
Multihop upgrades must be performed within a 5-week period.
For more information about supported upgrades, see “Supported Upgrade Types” (page 5).
NOTE: The E-Class and S-Class storage systems do not support HP 3PAR OS 3.1.1 or later,
therefore, they are exempt from the 5-week rule and may continue to run HP 3PAR OS version
2.3.1 in a HP 3PAR Remote Copy configuration with the HP 3PAR StoreServ 10000 Storage
system, T-Class, or F-Class storage systems running HP 3PAR OS version 3.1.1 only.
WARNING! For HP 3PAR StoreServ Storage systems licensed with HP 3PAR Remote Copy, direct
upgrade is not supported from 2.2.4 to 3.1.1 or later. See Table 7 (page 15)
• For systems running HP 3PAR OS 2.2.4 or later with HP 3PAR Remote Copy, only the groups
need to be stopped. Stop the remote copy groups after the synchronization has completed
via stoprcopygroup group name/s.
For details about using the stoprcopygroup command, see the HP 3PAR Remote Copy
User Guide. To obtain this document, see the HP Storage Information Library:
www.hp.com/go/storage/docs
• HP 3PAR OS 2.2.4 systems with HP 3PAR Remote Copy cannot be upgraded directly to HP
3PAR OS 3.1.1 and later. HP 3PAR OS 2.2.4 systems with HP 3PAR Remote Copy must be
14 Guidelines for Online Upgrades