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These release notes describe the modifications and known issues for Patch 06 (P06). The application
of this patch is intended for HP 3PAR InForm OS 3.1.1.226.
HP has identified an issue with the new defragmentation feature in HP 3PAR InForm OS 3.1.1 that
can have an adverse performance impact on the HP 3PAR Storage System. HP 3PAR InForm OS 3.1.1
includes a new defragmentation feature for Thinly Provisioned Virtual Volumes (TPVVs). This feature
enhances space reclamation capability of the array, offering incremental space savings, in some cases.
The new defragmentation feature may impact performance if a large number of TPVVs are extremely
fragmented. In rare cases, the performance impact may be severe, leading to the host I/O timing out.
This condition can occur if a large number of blocks have been freed by the host (using explicit
commands, such as delete –c, or in an automated manner by a thin aware filesystem).
CAUTION:
The SP 2.5.1 P004 is a corequisite patch and must be installed immediately after any
InForm 3.1.1. patch installation to ensure the proper function of a node rescue if necessary.
1.1 Supported platforms
The HP 3PAR Configuration Matrix for InForm OS 3.1.1 contains information about supported hardware
and software platforms. To obtain a copy of this documentation, go to the Single Point of Connectivity
Knowledge for HP Storage Products (SPOCK) Web site at http://spock.corp.hp.com/index.aspx.
1.2 Verifying the patch installation
The installation of Patch 06 can be verified from an Interactive CLI session through the SPMAINT main
menu. Issue the CLI command showversion -a -b to verify that Patch 06 is listed.
cli% showversion -a -b
Release version 3.1.1.226
Patches: P06
Component Name Version
CLI Server 3.1.1.226
CLI Client 3.1.1.226
System Manager 3.1.1.226
...
1.3 Components
Component
Version
OS
3.1.1.226
NOTE:
Applying this patch to the InForm OS may cause a restart of the affected OS components.
With these restarts, expected behaviors such as events and alerts may generate. The system will
continue to serve data but existing CLI or IMC sessions may be interrupted.
1.4 Modifications to the InForm OS
The following items have been addressed in this release.
Bug ID
Item
Description
66866
Temporary patch to disable
Due to issues that can lead to a system outage, defragmentation features
defragmentation in
have been disabled in 3.1.1.226 (GA) release for all platforms.
3.1.1.226 (GA)
This is a temporary patch. These issues will be addressed, and these features
will be enabled again, in a later 3.1.1 release.
1.1 Supported platforms
3
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