HP StoreVirtual 4000 Release Note page 12

HP LeftHand Centralized Management Console
The CMC does not show results if you try to convert volumes to Network RAID-5 to free up space
in the cluster
You cannot convert volumes from Network RAID–10 to Network RAID–5 as a way to save space.
If you attempt this, it will cause volumes to hang and the only fix is to delete volumes.
Export Events fails when the management group name contains certain special characters
When exporting events to a file, the default file name is the same as the management group
name. If the management group name contains either an asterisk (*) or a question mark (?), the
export will fail. To resolve this issue, delete the special character from the suggested file name.
The CMC Performance Dashboard is unable to monitor statistics for Fibre Channel Boot from SAN
volumes
Instead of numbers, N/A is displayed. Statistics for non-boot volumes are shown correctly.
HP LeftHand DSM for Microsoft MPIO
Rebooting an SSD node during I/O workloads causes a 20 second client side latency when the
DSM for MPIO is installed
If a storage system with DSM for MPIO installed is rebooted while I/O activity is occurring, it will
cause a 20 second delay on client applications and possibly cause application failure.
HP LeftHand DSM for Microsoft MPIO driver info is not displayed under Storage controllers
in the Windows Device Manager
Beginning with release 10.0, the DSM for MPIO driver is listed under the System devices section
of the Device Manager. In previous versions, the DSM for MPIO was listed under the Storage
controllers section of the Device Manager.
Changing the Fibre Channel load balancing policy for the DSM for MPIO fails and disables path
verification
If you try to change the Fibre Channel load balancing policy from Round Robin With Subset
to Fail Over Only, the change will fail. Additionally, it will disable path verification. You must
manually reset path verification on the LeftHand P4000 disk Multi-Path Disk Device Properties
dialog box. On the MPIO tab, click Details. On the DSM Details dialog box, select Path Verify
Enabled.
Disks are reported as offline in the Windows Disk Manager after uninstalling the DSM for MPIO
In very rare circumstances, after removing the DSM for MPIO and rebooting the server, some
volumes may display as offline. To resolve this issue, open the Windows Disk Manager, right-click
the offline disk and select Online Repeat for each offline disk.
Windows Server 2012 NIC teaming with DSM for MPIO does not recover if NICs are disabled and
then enabled
The Microsoft Windows Server 2012 NIC teaming interface does not support the DSM for MPIO.
NIC teaming on iSCSI without MPIO does work and is supported by Microsoft in certain
configurations.
Upgrading to Windows Server 2012 from Windows 2008 R2 renders DSM for MPIO and disks
inoperable
After upgrading to Windows Server 2012 from Windows Server 2008 on a system with DSM
for MPIO installed, the DSM for MPIO is no longer functional and the volumes no longer display
12 Workarounds