HP StorageWorks SAN Virtualization Services Platform 2.1.1 release notes (5697-0066, July 2009)

Windows fault when array unresponsive
There is a Windows limitation that when an array becomes unresponsive, it returns a SCSI BUSY or
QUEUE status. This causes an endless loop in the Windows StorPort.sys driver because it tries
to resend the command. This may lead to a Windows fault condition.
VSM must be enabled for "Reboot on fatal error"
To allow a second VSM server to take over in case the primary VSM server encounters a fatal error,
VSM must be set to "Reboot on fatal error." This is the default setting during installation and must not
be changed. This setting is enabled from a check box on the VSM monitor Machine tab.
VSM server connection to the SAN
After disconnecting or connecting a VSM server from or to the SAN, you should wait at least five
minutes before reconnecting or disconnecting it again.
New front-end LUNs require rescan
To discover new front-end LUNs, perform a rescan from Computer Management on the Windows
server. Use this general procedure when assigning a new SVSP LUN:
1. Present a new LUN (or group of new LUNs) to the Windows server using VSM.
2. Log in to the Windows server, right-click on the My Computer icon, and select Manage.
3. Click Device Manager. In the right pane, right-click Disk Drives, and select Scan for hardware
changes.
4. New LUNs will appear under Disk Drives.
New back-end LUNs require rescan
To discover new back-end LUNs, perform a rescan from Computer Management on the VSM server.
Do not use the Rescan devices option from the Windows Management GUI. Use this general procedure
when assigning a new EVA LUN:
1. Present a new LUN (or group of new LUNs) to the VSM using HP Command View.
2. Log in to the VSM server, right-click on the My Computer icon, and select Manage.
3. Click Device Manager. In the right pane, right-click Disk Drives, and select Scan for hardware
changes.
4. After the screen stops refreshing, open the VSM GUI and navigate to Entities > Back End LUs >
Rescan Devices. The added LUs appear in the GUI under the list of back-end LUs.
LUNs must have a preferred path/controller
VSM does not support EVA LUNs that are configured in No Preference mode. They must be preferred
to Path A or B. If No Preference LUNs are presented to the VSM server, they will not display in the
GUI, and are therefore not manageable by the VSM. To resolve this issue:
1. Using HP Command View EVA, unpresent the No Preference LUNs.
2. Perform a rescan of the hardware with the VSM GUI.
a. Log in to the VSM server, right-click on the My Computer icon, and select Manage.
HP StorageWorks SAN Virtualization Services Platform 2.1.1 release notes 13