8x00 family of Disk Arrays 4.01.00 installation and reference guide (AA-RW7SP-TE, September 2010)

C Troubleshooting

This appendix discusses some of the common problems that you may encounter while using the HP

MPIO DSM. It also describes how to troubleshoot these problems.

Problem: HP MPIO DSM fails to load and displays a yellow-bang in the Device Manager screen.

Solution: To troubleshoot this problem, complete one of the following:

• Verify if the Multi-path I/O feature is enabled. If not, enable the Multi-path I/O feature. To do this,

go to Server Manager and select Features > Add Features > Multipath I/O.

Problem: HP MPIO DSM fails to manage the disk devices.

Solution: To troubleshoot this problem, complete the following steps:

1. Verify if the device is currently under multipath support. To do this, go to Control Panel, and select

MPIO. Verify the existence of the corresponding device hardware ID in the MPIO-ed devices tab.

2. If the hardware ID is not present, do one of the following:

• Add the corresponding hardware ID.

• Reinstall the HP MPIO DSM.

Problem: HP DSM CLI and HP MPIO DSM Manager fail to list devices after upgrade from Windows

Server 2003 to Windows Server 2008.

Solution: Double-click one of the following batch files (depending on your operating system):

• For Windows Server 2008 x86:

<Target_Dir>\x86\Win2k8Upgrade.bat

• For Windows Server 2008 IA64:

<Target_Dir>\ia64\Win2k8Upgrade.bat

• For Windows Server 2008 x64:

<Target_Dir>\amd64\Win2k8Upgrade.bat

where <Target_Dir> is the location where the DSM is installed.

Problem: HPDSM CLI or HP MPIO DSM Manager does not display the output.

Solution: Run the following commands from the command prompt pointed to the folder "C:\Program

Files\Common Files\Hewlett-Packard\HP MPIO DSM\COMMON FILES\mof" and register the

following mof files:

• mofcomp hpwmi.mof

• mofcomp HPDSMHighPerfProvider.mof

• mofcomp -N:root\wmi LBPolicy.mof

• mofcomp -N:root\wmi mpdisk.mof

• mofcomp -N:root\wmi mpio.mof

• mofcomp -N:root\wmi pdo.mof

HP MPIO Full Featured DSM for EVA4x00/6x00/8x00 family of Disk Arrays 4.01.00 installation

and reference guide 47