HP StorageWorks 6000-series Virtual Library System User Guide (AH809-96049, September 2010)

SolutionPossible causesSymptom
Re-enable oversubscription, set the
alert threshold so that the storage
pool is within the capacity
threshold, then wait for the pool to
return to good (green) status. Dis-
able oversubscription and the stor-
age pool will maintain good status.
When you disable oversubscrip-
tion, the system does not monitor
the storage pool's capacity, even
to check that it is no longer at a
critical level. The status will not
change.
When oversubscription is enabled
and you create enough cartridges
in a storage pool to put your free
storage capacity below the
threshold, the pool may reach crit-
ical status. If you then disable
oversubscription, your storage pool
will remain in critical status and will
not return to good status—even
after reboot.
Automigration/Replication Issues
Although Automigration is configured and managed through the Automigration/Replication tab on
Command View VLS, errors and events are reported through the usual notification alerts. See
Notification Alerts.
IMPORTANT:
If a destination library is directly connected to the VLS (LOOP mode), and you disconnect the destination
library to change its connection to be via a SAN (FABRIC mode), you will need to reboot the VLS in
order for this change to work. If you do not reboot, the destination library will be marked as FAILED
after you disconnect and reconnect it.
NOTE:
The “mirror_broken” state can occur when there is not enough room on the virtual tape to create the
copy, there are no available slots to create the copy, the library cannot read the header of the physical
tape, the library cannot determine that a tape without a header is blank, or the library cannot
successfully write the header to the virtual tape.
Destination library status icon
While the device status icon in the Command View VLS status banner indicates the overall VLS device
health on other tabs, the icon on the Automigration/Replication tab indicates the status of the destination
libraries.
A destination library status icon can be one of five states:
Error—An error occurred while the system was determining the status of the destination libraries.
Unknown—A destination library's operating condition is unknown. Contact HP Technical Support.
Normal—All destination libraries are operating normally.
Warning—At least one destination library is in a good state while at least one destination library
is any state other than good.
Warning for All—All destination libraries are in any state other than good.
Troubleshooting316