As others have stated, it should be OK to move LUNs from one Windows server to another. If you are using Basic disks, this shouldn't be an issue. If you are using Dynamic disks on your Windows host, there is some potential for issues...especially if you have both local dynamic disks as well as SAN dynamic disks on either of the hosts.
Another item to note is that when you initially present the disks to the DR Windows host, if you are using Enterprise or Datacenter versions of Windows, the disks will not automatically mount if the have not been presented to the host previously. You will need to manually assign a drive letter to these disks before you see them properly in Disk Manager. See http://support.microsoft.com/kb/834911 for more details.
if they are not part of cluster configuration ..you should not have any problems. Once you move them to another host you might have to re-assign the drive letter but other than that it should be ok. I had issues with moving LUNs that were disk resources in MS clustering and were not reclaimed properly, so scsi reserves had to be removed by EMC.
When you need to clean up a SCSI3 reservation please quote primus emc81931 ..
As you said, moving disks between hosts IS safe .. Since Windows uses signatures to identify disks, it's "better" NOT to re-signature the disk when receiving host discovers the new lun ..
The other obvious thing to be careful is that you remove access from the old Windows server before you assign it to the new server.
Very important since Windows can be a little more aggressive than most UNIX variants with automatically grabbing devices and more background processes that might try to access the drive if you left it allocated.
John Toner
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April 10th, 2008 06:00
Another item to note is that when you initially present the disks to the DR Windows host, if you are using Enterprise or Datacenter versions of Windows, the disks will not automatically mount if the have not been presented to the host previously. You will need to manually assign a drive letter to these disks before you see them properly in Disk Manager. See http://support.microsoft.com/kb/834911 for more details.
Hope this helps
dynamox
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April 9th, 2008 20:00
xe2sdc
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April 10th, 2008 00:00
As you said, moving disks between hosts IS safe ..
Since Windows uses signatures to identify disks, it's "better" NOT to re-signature the disk when receiving host discovers the new lun
Enjoy !!
bodnarg
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April 10th, 2008 04:00
Very important since Windows can be a little more aggressive than most UNIX variants with automatically grabbing devices and more background processes that might try to access the drive if you left it allocated.
xe2sdc
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May 2nd, 2008 06:00
Can we help further ??
wishtobeMrEMC
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May 4th, 2008 23:00