HP LeftHand SAN Solutions Support Document - Service Notes - VSA 7.0 for VMware ESX

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Workaround
Wait to edit the volume using the Console until all the snapshots created prior
to changing the volume's autogrow value are deleted by the
snapshot schedule.
If you anticipate an immediate need for editing the volume, delete all
snapshots and if the cluster space constraint is still there, only then change
the volume's autogrow value.
In A DL 320s With RAID Rebuild Priority Set To High, Volume Becomes
Unavailable During RAID Rebuild (7554)
Scenario
When the RAID is rebuilding on a DL 320s for which the Rebuild Priority has
been set to High, and the volume is under heavy load, it is possible that the
system may have difficulty keeping up with I/O and may lose the
iSCSI connection.
Workaround
If the volume goes offline while RAID is rebuilding, do either of
these workarounds:
• Move the RAID rebuilding priority to low. This lengthens the time that the
array is rebuilding, but allows heavy I/O volume to continue.
• Reduce the load on the storage module. This allows the storage module to
complete the rebuild quickly.
Converting A Volume From Remote To Primary With Thin Provisioning
Makes The Volume Un-editable (7545)
Scenario
After promoting a remote volume to primary, the length of the volume is set to
0. If you attempt to edit this primary volume at any time (even months later)
after you have converted it, you receive the following error message:
Volume “x” cannot be modified because the initial quota must be greater than
zero and less than its length.