I have a virtual file server with a 2TB virtual disk (vmdk). When I try to create a snapshot of the system (in order to back it up), I get the following error:
File <unspecified filename> is larger than the maximum size supported by the datastore '<unspecified datastore>.
The datastore which the file server is located on is formatted with VMFS 5.54 with 1MB block size. It is a 12TB datastore with about 6TB free.
That's correct. If you want to take a snapshot, then the maximum size is 2032 GB. And that's the case even if you thin provision the disk.
This KB might help you;
http://kb.vmware.com/kb/1012384
I would consider using RDM's instead.
Regards,
Paul
Thanks for the info. According to article, I cannot create snapshots of disks sized 2048GB-512bytes regardless of the VMFS version. The largest disk I could create a snapshot of would be ~2032GB (2048GB - ~16GB snapshot overhead). Is this correct?
I suspect you are correct, unfortunately I cannot confirm in my test lab at this time.
Regards,
Paul
That's correct. If you want to take a snapshot, then the maximum size is 2032 GB. And that's the case even if you thin provision the disk.