User's Manual

1. Close the HP MPIO DSM Manager GUI.
2. Close Disk Management.
3. Stop and restart the Virtual Disk services.
4. Open Disk Management, and then rescan or Diskpart rescan to enumerate the LUNs.
If these steps are not successful, reboot the server.
Host port connection limit on B-series 3200 and 3800 switches
A maximum of three EVA4400 host ports are supported on a single B-Series 3200 or 3800 switch
running version 3.2.x. HP recommends that you connect only one storage host port on a B-Series
switch. However, if you must connect more than one storage host port to a switch, separate the
connection into different quadrants. Otherwise the connections can drop following an array
controller resynchronization or when an event impacts the fabric, such as rebooting or adding a
switch.
To manage the port limitation:
• For all hosts, zone by HBA as defined in the HP SAN Design Reference Guide.
• Limit affected switches to only one HBA connection per host.
• Limit placement of the switch as an edge device and not part of the core.
• If the switch drops a connection, re-establish the connection as follows:
1. Disconnect the Fibre Channel cable from the failed port.
2. Wait 10 seconds, and then reconnect the cable.
The port relogs into the fabric and re-establishes a connection to the array.
Operating tips and information 29