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lohelle wrote:Feature requests:
Vaai support (reclaim of space when deleting files in VMFS)
Dedupe support for HA-devices
And a general request:
Change sync-channel settings on HA-target
lohelle wrote:Strange...
I created a NTFS-partition from a 800GB dedupe device (4KB block). I installed a Windows Server 2008 R2 Hyper-V VM. Then I installed second VM the exact same way.
Dedupe size almost doubled.
Then cloning in Vsphere the size was almost unchanged (different servers, not two of the same VM's)
lohelle wrote:4KB, same as dedupe block size.
Created as a GPT disk.
Not important as I will use vSphere only, but just a bit strange.
I'm going to do some more dedupe tests in a few days with 32 SAS-disks in RAID 10 + infiniband to ESXi host.
lohelle wrote:Any test you would like me to do? Sector sizes and block sizes? (I was referring to the hyper-v issue)
lohelle wrote:512b dedupe (200GB disk)
5.5GB usage (just spdata) after 1 VM install. 6.7GB after the second. But about 10GB of metadata and bitmap also.. and bad performance.. and high mem usage.
Tried 4GB block again and GPT disk. Formatted and actually selected 4kb clusters (even if this was used automaticly last time)
Same results as previous 4kb results.
Same results with MBR and 4kb block/4kb cluster.
As far as i know, Windows Server 2008 R2 setup should align partitions automaticly? (I was thinking about inside the VM's)