Hi Suresh
ONTAP upgrades should not cause LUN serial numbers to change, so resignaturing should not be necessary. If LUN S/N do change, change them back and ESX should rescan and be happy.
Before you start, collect "lun show -v".
After upgrade, look at lun show -v again and compare LUN Serial#.
If they changed, for each LUN
lun offline <lun>
lun serial <lun> <old_sn>
lun online <lun>
Share and enjoy!
Peter
From: Suresh Rajagopalan [mailto:SRajagopalan@williamoneil.com] Sent: Friday, March 26, 2010 9:15 PM To: toasters@mathworks.com Subject: LUN resignaturing
We're running some ESX 4.0 hosts with VMFS and RDM LUNs on our filers running 7.2.6.1. We are planning a upgrade to 7.3.2
Should we expect to do LUN resignatures on VMware after the upgrade?
Thanks
Suresh