Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

VMFS label missing on cloned replica

Posted on 2014-04-10
7
Medium Priority
?
884 Views
Last Modified: 2014-04-11
During a recent DR test one of my replicated volumes was missing a VMFS label and I wasn't able to get it mounted.  After the rescan, I did the normal add storage and when I selected that volume, instead of asking to resig or keep the existing signature, it asked me to format as VMFS5 or VMFS3.  

I tried multiple snapshots and different servers and they all wanted to format.  

vSphere 5.1 attached to Equallogic connected via iSCSI.
0
Comment
Question by:bigjon-x64
  • 3
  • 3
7 Comments
 
LVL 124

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 2000 total points
ID: 39992560
this is more common than you think....

have you tried logging in at the console (command line) and using the following command

esxcfg-volume -l

this will respond with

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 do...

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

or

esxcfg-volume -m nas3-vmfs
0
 
LVL 62

Expert Comment

by:gheist
ID: 39993101
You need VAAI and make sure snapshots are offloaded to equallogic, so that the replica is accurate and usable
0
 

Author Comment

by:bigjon-x64
ID: 39994023
esxcfg-volume -l returns

VMFS UUID/label:  NA
Can Mount: No (some extents missing)
Can resignature: No (some extents missing)
Extent Name naa.6090a0b8a0550a2d7e3435ca4a25347b:1 range 857127608576 -857127608831 (MB)

I don't remember extending the volume since the last test.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 124
ID: 39994041
This is the reason it cannot be mounted, it does not appear to be complete or is corrupted.

Are you using the recommended Dell Equallogic Virtual Storage Manager for VMware vSphere on your Hosts and vCenter Server, which provides you with a GUI, interface to Create Smart Copies (SAN Snapshots) and Replicas, which can be mounted from within vSphere vCenter Server.
0
 

Author Comment

by:bigjon-x64
ID: 39994073
Yes and no.  The replication for this volume was set up prior to VSM and hasn't had a problem in previous D.R. tests, so it wasn't a big priority to change.  Is the best course to create a new data store, configure replication, and storage vmotion the affected VMs?
0
 
LVL 124
ID: 39994179
I think I would test, create a new datastore, configure replication on this new datastore and LUN, and then check and present to VMware ESXi.
0
 

Author Closing Comment

by:bigjon-x64
ID: 39994283
Thanks for the help.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: evilrix
Looking for a way to avoid searching through large data sets for data that doesn't exist? A Bloom Filter might be what you need. This data structure is a probabilistic filter that allows you to avoid unnecessary searches when you know the data defin…
Stellar Exchange Toolkit: this 5 in 1 toolkit comes loaded with mega-software tool. Here’s an introduction to tools’ usage and advantages:
This tutorial will walk an individual through locating and launching the BEUtility application to properly change the service account username and\or password in situation where it may be necessary or where the password has been inadvertently change…
This video shows you how easy it is to boot from ISO images for virtual machines with the ISO images stored on a local datastore on the ESXi host.

926 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question