HP StorageWorks 9000 - Virtual Library System User Manual page 291

Symptom
At reboot, there are spurious critical
FC port failures reported as notific-
ation alerts, usually on every port.
Later, Info notification alerts for
each FC host port are generated,
indicating the FC ports are operat-
ing normally.
The Identity tab of Command View
VLS reports Total Usable Capacity
of 0 GB, even though there are
working disk arrays available to
the VLS system.
After replacing drive 0 in a node,
the system will not boot.
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.
Possible causes
This is expected behavior and does
not indicate a problem.
Whenever the VLS detects more
arrays than there are correctly in-
stalled licenses, the VLS system will
disable ALL array storage and re-
port 0 GB of Total Usable Capa-
city.
A blank drive was installed in drive
bay 0.
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.
Solution
5. Repeat this procedure for each
server visible to each SDLT
tape drive.
None
Using Command View TL on the
management station for this VLS,
go to the "License Key Summary"
tab and verify the following:
• There is a License folder labeled
"VLS at..." with the Ethernet IP
address for this VLS system.
• The number of license instances
in this folder ("Quantity (LTU)")
is equal to or greater than the
number of arrays connected to
this VLS system that exceed the
base configuration (one array
for every node installed).
• Verify the correct VLS system
Identifier was used and entered
correctly when the license key
was created. If licenses that
were installed for this system
show up under the "Un-man-
aged Licenses" license folder,
then Command View TL can not
match the Identifier for that li-
cence to any known library
device.
If a blank drive is installed in drive
bay 0, the system will not boot. To
remedy this, switch the drive loc-
ated in bay 0 with the drive located
in bay 1.
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.
HP StorageWorks 291