UFAD_SYSTEM ERROR (File is larger than the maximum size supported by datastore)

[monsterpuss]

I'm trying to use VMWare Converter Enterprise edition to clone a physical server to a virtual machine on a Virtual Center Cluster. The source machine has two disks - one of 136GB and the other of 273GB. I wish to migrate both of these and maintain the size of the disks. The Datastore I'm trying to use to host the new VM has 1.2 TB free.

I'm therefore confused when the converter process fails with the above error message. Can anyone shed any light on this?

Regards

Rich

[theanykey · Accepted solution]

Given that you are attempting to place a larger then 256GB file onto ESX, you should note that you will need to have a VMFS partition with a blocksize larger then the default 1MB allocated. Please reference the snippet taken from our Maximums guide.

>From the Configuration maximums guide:

http://www.vmware.com/pdf/vi3_301_201_config_max.pdf

=======================================

VMFS 2

Volume size (2TB x number of extents) (Minimum = 100MB)

File size (block size=1 MB) 456GB

File size (block size=8 MB) 2TB

File size (block size=64MB) 27TB

File size (block size=256MB) 64TB

Number of files per volume 256 + (64 x number of extents)

VMFS 3

Volume size (block size = 1MB) ~16TB 4GB (denotes an approximate value)

Volume size (block size = 2MB) ~32TB 8GB

Volume size (block size = 4MB) ~64TB 16GB

Volume size (block size = 8MB) 64TB

File size (block size=1MB) 256GB

File size (block size=8MB) 2TB