Hi Team,
could please explain what it does mean device name ending with like :1 or :3
The format is like this
naa.<NAA>:partition
for ex In your case device name ends with refer to partition 1 of the Lun & 3 refers to partition 3 of the lun.
If no number is present entire device is considered instead of a single partition
Please refer the KB for more information:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1014953
Thanks
Muruli