HP 4400 Release Note page 6

Hp p6000 enterprise virtual array release notes (xcs 10000000) (667992-001, july 2011)
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Fixed an issue where the array failed to correctly split a background parity structure following
the addition of a twelfth member.
Fixed a resource contention deadlock that occurred when rebuilding parity.
Fixed an issue where leveling would stall after two 1 TB drives are added to the system.
Fixed a rare recursive controller resynchronization that could occur when a virtual disk being
expanded had errors.
Added functionality to ensure that the leveling process did not miss any outstanding work caused
by a background parity structure reconfiguration.
Fixed controller resource starvation issues that could occur under heavy workloads when disks
failed.
Fixed an issue that, in certain circumstances, occurred during a LUN shrink, expand, or delete
operation, and cause the controllers to recursively resynchronize.
Hardware (replaceable parts, device ports, resynchronization)
This section describes issues affecting physical hardware, which can lead to incorrect condition
handling, false condition reporting and similar events that may lead to incorrect device status reporting
or replacement.
Fixed a controller power up diagnostics issue that incorrectly logged a real time clock failure.
Created a new critical event to alert field personnel to check or replace the disk enclosure power
supply when a failure condition is encountered.
Improved the back-end device discovery model to address several known issues, including a
situation where controllers may terminate during back-end error handling (force LIP failure).
Fixed an issue that blocked communication between the two I/O modules within a single disk
enclosure.
Fixed an issue where back-end transport errors caused the controller software to fail a disk drive
unnecessarily.
Fixed an issue where the array would not log any events to indicate the back-end disk enclosures
were improperly cabled.
Fixed an issue where the I/O module firmware upgrade gets blocked when a disk enclosure
disappears and then remains blocked when the enclosure is accessible again.
Fixed a problem that, in rare circumstances, occurred when I/O to a disk volume failed and a
bad block replacement was not attempted. As a result, the controller could experience a stalled
state and execute a CSM Reset termination to clear the stalled state.
To eliminate unnecessary service actions, reporting of events 0D DE 95 06: A drive
enclosure I/O module is not communicating with the other I/O module and
09 CD C3 05: SCMI Fibre Channel port FAILED have been discontinued.
Fixed a rare controller restart that occurs when reading the link status from disk drives while
workloads are in progress.
Addressed several situations where drives could erroneously be reported as Single Port on Fibre
(SPOF), indicating it is only connected to one of the two device side I/O loops, and has lost
redundancy.
Fixed an issue where some drive check conditions were not being handled as transport errors,
resulting in drives being failed incorrectly.
Fixed an issue where background processing can be blocked and cause a CSM Reset termination
if a drive firmware SMART (Self Monitoring Analysis and Reporting) error is encountered while
waiting for a drive quiesce to complete or when accessing disk media.
6
Fixes

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