I am in the process of using iSCSI LUNS as VMware datastores and am looking for 
advice in backing up & restoring. As of now I have one LUN that does not get 
backed up because there is not enought space for NDMP to create the snapshot. 
So here are my questions...

I created a Volume of 600GB and then created the LUN to use all of the space it 
could in that volume and then added 20% for snapshots which is 150GB 
additional. 

Do I need to have 600GB free to match the 600GB I am using for Networker NDMP 
to create it's snapshot? 
or 
Do I need the what ever space is actually being used by the VMs that occupy 
that LUN?

Should I be making my LUNS smaller for ease of backup & recovery? I am assuming 
that to recover a single VM I need to recover the entire LUN.

Would it be easier  backup & recover single VMS in a NFS share if I used NFS 
shares for Datastores?


Thanks [Question]

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