DISK PART COMMANDS FOR EMC SAN DISKS

 Apply Microsoft HOTFIX for clusters (updates the “clusdisk.sys” file in your OS)

http://support.microsoft.com/kb/957419/en-us

On all your windows Node servers

Ensure that Power Path is fully licensed properly

Open “Power Path Administrator” to confirm that both adapters Path Mode are listed as active (it will state unlicensed if there is a license issue)

If it shows as unlicensed complete the following:

Open “PowerPath Licensing Tool” under EMC in the start menu

Select “ADD” and input BOPW-GB4W-MFMN-QQRN-ML9Z-YIZ7

Now go back to “Power Path Administrator” to confirm both adapters are listed as active

If not then complete the following DOS commands

Powermt check_registration (this will confirm the license key)

Powermt display (this will show the general status of the adapters)

Powermt display dev=all (this will show the current status of the adapters)

The screen capture below show that port 1 is unlicensed

Now run the policy command Powermt set policy=so dev=all (this will force a policy push for the status and license to each adapter)

Now run the Powermt display dev=all command again to confirm the status

Once the above is completed we can start to create the disk for the OS

Open disk manager and answer yes to initialize the new SAN disk

Now your disk manager should look similar to this

Now we need to run the DISK PART commands to realign the disk sectors for EMC and Windows to access the disk properly;

From a DOS command prompt run the following commands

C:\Documents and Settings\Administrator>diskpart

Microsoft DiskPart version 5.2.3790.3959

Copyright (C) 1999-2001 Microsoft Corporation.

On computer: BRSKBPRHY1

DISKPART> select disk 2 (or whichever disk you will use)

Disk 2 is now the selected disk.

DISKPART> create partition primary align=128 (this equals 128 blocks)

DiskPart succeeded in creating the specified partition

DISKPART> exit

Now you can created your logical drives

Select “mark as active” only if you need to boot for this volume (IE EMC servers)

Select “change drive letter” and select the appropriate drive letter

Now format the drive

Here is the Microsoft link for how to use DISKPART

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/diskpart.mspx?mfr=true