HP StorageWorks HSG80 Enterprise/Modular Storage RAID Array Fibre Channel Solution Software V8.7A for Novell NetWare Release Notes

ACS Feature Support
21Release Notes – HSG80 Enterprise/Modular Storage RAID Array Fibre Channel Solution
Software Version 8.7A for Novell NetWare
IMPORTANT: For ACS Version 8.7, minimum cache size requirements are 128 MB in
unmirrored configurations, and 256 MB in mirrored configurations, per cache module. The
cache size requirements for running ACS Version 8.7P remain at 512 MB.
Disk Partitioning
ACS allows partitioning of disk drives or storagesets for improved device
management. A partition appears to the operating system as a single virtual disk. Up
to eight partitions may be created per storageset or disk drive. Disk partitioning is
supported under all failover modes supported by your operating system.
Write History Logging
Write history logging, available to users of ACS Version 8.7P, uses a log unit to log a
history of write commands and data from the host on the initiator side in either of the
following situations:
• The target is inaccessible.
• The initiator site data needs to be synchronized during a planned failover.
Mini-merge—If the target becomes inaccessible, the writes that would have gone to
the target are logged to the association set’s assigned log unit. An inaccessible target
in this context refers to both links or target controllers shutting down. When the target
becomes accessible, a full copy is not necessary. Only those host writes that occurred
while the links were down are reissued. This is referred to as a mini-merge. If a full
copy was in progress at the time of the disconnect, write history logging is not
initiated and the full copy is restarted when the target is accessible again.
Fast-Failback—During a planned failover, if write history logging was enabled at the
target site, then when the failback is performed, the initiator site is synchronized
through a process called fast-failback. The writes that would have gone to the initiator
are logged to the association set’s log unit. Only those writes that occurred since the
failover are reissued. A full copy is not necessary.
Dynamic Volume Expansion
Dynamic Volume Expansion is not supported on NetWare. However, NetWare
provides its own dynamic volume expansion features. Please see your NetWare
documentation for details.