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cannot mount snapshot volume on ESXi 5.5

I'm trying to mount a snapshot to be presented on a newly installed ESXi 5.5 just to be able to recover a VM.

I bring the snapshot online on EQL, add the host iscsi name
I can see the volume on ESXi, try to add datastore, I choose resignature and get this
  resignature error
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1 Solution
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
if you use the console, (or remotely via ssh), and use:-

esxcfg-volume -l

example output

~ # esxcfg-volume -l
VMFS3 UUID/label: 4cc89503-f054d0d4-2865-00221958e471/nas3-vmfs
Can mount: Yes
Can resignature: No (the volume is being actively used)
Extent name: naa.600140588e9bab7d2b7ed4b53dadc1de:1     range: 0 - 1048319 (MB)

and then

esxcfg-volume -m 4cc89503-f054d0d4-2865-00221958e471


esxcfg-volume -m nas3-vmfs
Bes4dminAuthor Commented:
thanks hanccoka

When I executed esxcfg-volume -m 4cc89503-f054d0d4-2865-00221958e471 I got "Error: Read only"
Then it hit me that the snapshot were set to read only on EQL so when I changed that to read & write I could mount and resignature even from vSphere client.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
vSphere Client is prone to not reporting or feedback correctly!
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