HP 6400/8400 HP StorageWorks Enterprise Virtual Array release notes (XCS 09534 - Page 8

Disks disk groups, virtual disks, Hardware replaceable parts, device ports, resynchronization, HP Business Copy EVA

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• Due to an interruption in the leveling of a disk group (termination code 0x0402011f). Disks (disk groups, virtual disks) This section describes issues affecting physical and virtual disks or disk groups, which can lead to a range of behaviors including a loss of redundancy, performance impact, or data unavailability. • A data migration operation stalled after a disk drive error occurred. • The one minute delay that occurred prior to a controller resynchronization (due to a RAID1 inop- erative state) has been removed. • Improved the storage of LUN world wide name IDs in persistent memory. • Data and non-data exchange timeout processing has been changed to reduce erroneous Single Port on Fibre (SPOF) reporting during high workload conditions. • Improved the sequential disk leveling process. • Corrected the ability to set the device ID on presented LUNs. • Improved the ability to read from a mirrored pair when a data error bit is set on one of the one volumes. • Changed the disk drive inquiry process to occur as soon as the disk drive is added to loop. 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. • A false Over Temperature condition could lead to a disk enclosure shutdown. • On the EVA4400, false reporting of the battery holdup time caused a change to the LUN cache policy. • Excessive exchange timeouts (the cause of which has been corrected) led to device ports being disabled. • Incorrectly formed Linux device mapper RAID (DM RAID) requests caused excessive server boot time due to timeouts. • On the EVA8400, repeated cache battery failures due to a persistent load testing state were cor- rected. • On the EVA4400, the time to establish mirror port communication (after a single controller resyn- chronization) has been improved. • Corrected false failure indications on the controller's replaceable components that occurred after a controller resynchronization. HP Business Copy EVA This section describes issues affecting HP Business Copy EVA implementations of local replication, including snapshots, snapclones, and mirrorclones. • Improvements were made to prevent a recursive controller termination that occurred when a mir- rorclone was created and fractured in a different disk group than the source virtual disk and an inoperative condition occurred on the source. • For multi-attach configurations, the timing requirements have been improved to satisfy the Microsoft Volume Snapshot Service (VSS) requirements. 8

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Due to an interruption in the leveling of a disk group (termination code
0x0402011f
).
Disks (disk groups, virtual disks)
This section describes issues affecting physical and virtual disks or disk groups, which can lead to a
range of behaviors including a loss of redundancy, performance impact, or data unavailability.
•
A data migration operation stalled after a disk drive error occurred.
•
The one minute delay that occurred prior to a controller resynchronization (due to a RAID1 inop-
erative state) has been removed.
•
Improved the storage of LUN world wide name IDs in persistent memory.
•
Data and non-data exchange timeout processing has been changed to reduce erroneous Single
Port on Fibre (SPOF) reporting during high workload conditions.
•
Improved the sequential disk leveling process.
•
Corrected the ability to set the device ID on presented LUNs.
•
Improved the ability to read from a mirrored pair when a data error bit is set on one of the one
volumes.
•
Changed the disk drive inquiry process to occur as soon as the disk drive is added to loop.
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.
•
A false Over Temperature condition could lead to a disk enclosure shutdown.
•
On the EVA4400, false reporting of the battery holdup time caused a change to the LUN cache
policy.
•
Excessive exchange timeouts (the cause of which has been corrected) led to device ports being
disabled.
•
Incorrectly formed Linux device mapper RAID (DM RAID) requests caused excessive server boot
time due to timeouts.
•
On the EVA8400, repeated cache battery failures due to a persistent load testing state were cor-
rected.
•
On the EVA4400, the time to establish mirror port communication (after a single controller resyn-
chronization) has been improved.
•
Corrected false failure indications on the controller's replaceable components that occurred after
a controller resynchronization.
HP Business Copy EVA
This section describes issues affecting HP Business Copy EVA implementations of local replication,
including snapshots, snapclones, and mirrorclones.
•
Improvements were made to prevent a recursive controller termination that occurred when a mir-
rorclone was created and fractured in a different disk group than the source virtual disk and an
inoperative condition occurred on the source.
•
For multi-attach configurations, the timing requirements have been improved to satisfy the Microsoft
Volume Snapshot Service (VSS) requirements.
8