HP VMA-series Memory Arrays Hinweis PDF herunterladen (Seite 12)

3. Check the box for MPIO and install.

4. Reboot the server to initialize MPIO and claim devices.

Verify that MPIO has correctly identified the LUNs presented by the VMA SAN Gateway with the

following steps:

1. Click:

START -> Administrative Tools -> MPIO

2. Under the MPIO Devices tab, verify that there is a Device Hardware ID entry for „VIOLIN SAN ARRAY

„ in the list of IDs. There will be a generic Device Hardware Id template entry, „Vendor8 Product 16‟

which is only an example entry and does not bind to any storage. It is okay to leave this template entry

in the list.

3. Only if an entry is not in the Device Hardware ID table for „VIOLIN SAN ARRAY „, try issuing the

mpclaim function to re-identify devices for MPIO management. Click:

START -> Run -> cmd -> enter the command: mpclaim.exe -r -i -a ""

4. The system will automatically reboot after running the mpclaim command.

5. To validate the MPIO settings, click:

START -> Administrative Tools -> Computer Management -> Disk Management, and you

can validate the number of disks you have created and presented to this server from the VMA SAN

Gateway.

Queue-Depth Settings for Windows 2008 R2 & R2 SP1

The HBA drivers used with Windows Server 2008 have default LUN level queue depth values of 30

or 32 depending upon the HBA vendor. In many cases this default value will provide good results.

However in cases where a large number of LUNs are used with a large number of server FC initiator

ports, the resulting I/O load could cause Queue-Full conditions and I/O retries leading to non-optimal

performance.

For optimal I/O performance, use the following equation to determine the LUN queue depth settings

for the FC HBA driver:

LUN Queue Depth value =

(( <# gateway FC target ports> * 1024) / <# of server FC initiator ports> / <# of LUNs>)

If the resulting LUN Queue Depth value is greater than the HBA driver default (usually 30 or 32), then

use driver default.

Supported web browsers with vSHARE GUI

To launch the vSHARE web-based GUI, enter the VMA SAN Gateway IP address in the web address

space of the web browser. The vSHARE GUI requires the Java plug-in to be added and enabled in

the web browser in order to function correctly. Supported web browsers for use with the vSHARE

web-based GUI are:

 Internet Explorer (IE) version 8 or newer. When using IE, disable IE compatibility mode:

(Tools -> „Compatibility View Settings‟ ->

uncheck „Display Intranet sites in Compatibility View‟)

 Mozilla Firefox version 3 or newer

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HP VMA-series Memory Arrays Hinweis Seite 12