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12157
February 21st, 2014 05:00
Not enough space to restore single VM smart copy?
We are using equalogic VSM 3..5 to create samrt copies of virtual machines in our VMWare enviorment
There are 2 x 3TB volumes in use & a 4TB volume.
Taking into account the snapshot reserve we have 2.45TB free space.
We are trying to restore a single VM to the 4TB volume but it sayswe require 4TB of free space in the pool to do the restore.. This is a smart copy of single machine not the volume.
Do we really need to have available free space equivalent to our largest volume to be able to restore 1 VM?
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wadet5k
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February 23rd, 2014 20:00
You can restore data from a Smart Copy. This operation restores copied virtual objects to their state at the time you created the Smart Copy, depending on the Smart Copy options you chose at the time of creation.
You can choose:
• Selective Restore—VSM restores only those virtual objects that you specify, such as individual virtual machines. Other virtual objects are unaffected by the restore operation.
• Rollback the Datastores (fastest method)—VSM restores the entire datastore, including all virtual machines contained in the datastore. However, any virtual machines not included originally in the Smart Copy might have their data overwritten by a rollback. For example if you create a new virtual machine related to a data- store after the timestamp of the datastore’s last Smart Copy, that virtual machine might be corrupted by a roll- back of the datastore.
• Include any guest iSCSI volumes accessed by virtual machines in the Smart Copy (target volumes).
Depending on the volume of virtual objects and data, a restore might take considerable time to complete. Virtual objects might be unavailable during that time.
Notes: During a restore operation, avoid starting other tasks that might attempt to access the virtual objects that you are restoring.
If any VMs have been relocated to another datastore, the restore operation will first attempt to migrate these VMs back to their original datastore.
Before attempting the Restore from Datastore operation, verify that all members of your network are accessible. If a member is down, the Restore operation will likely fail.
LeePope
2 Posts
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February 28th, 2014 01:00
Thanks Don,
I'll give this a go. I was testing a restore of a test VM on a newly created volume befoe it went live.
It gave me an option that required less space but warned that it would resignature the smart copy. I guess this did something similar to what you have suggested.
Is there a way to calculate exactly how much free pool I need to keep to ensure I can restore VMs in this way?