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Esxi disk space

Posted on 2013-05-26
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Hi,

We have recently performed an upgrade of our Esxi server from 4.1 to 5.1 in order to unlock some more space on the virtual hard drives (256Gb limit).

I was expecting that after the upgrade, I would be able to increase the drive size from 256Gb up to 2Tb (space permitting) - however, the 256Gb limit is still there.

Do I need to provision a fresh virtual hard drive within this VM to access the new limit?

Or am I stuck with this limitation unless I provision a whole new VM?

Thanks.
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Question by:AndyB74
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cwstad2 earned 2000 total points
ID: 39197501
what vmfs do you have? you may want to read this article before upgrading

http://www.virtualizetips.com/2012/04/26/how-to-upgrade-to-vmfs-5-on-vmware-and-vmfs-5-facts/
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Your Block Size on the VMFS partition is still 1MB. Upgraded datastores still use the old block size.

ESXi 4.1 Blocksizes.

• 1MB block size – 256GB maximum file size
• 2MB block size – 512GB maximum file size
• 4MB block size – 1024GB maximum file size
• 8MB block size – 2048GB maximum file size

The only way to overcome this issue, is to move the VMs off, the datastore, remove the datastore (delete it), and re-create the new VMFS-5 datastore. This will then give you a new 1MB (ESXi 5.0) block size which can support virtual machine disks up to 2TB-512bytes.
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by:AndyB74
ID: 39197681
Are there any work arounds?  Was hoping to not have to delete my entire datastore - which would mean attaching some kind of external drive to temporarily move everything on to?
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by:AndyB74
ID: 39197690
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