Hi,
The setting was this:
Fresh installation of 2008 R2 - server backup with the backup feature - move
vhd to zfs - install active directory role - backup again - move vhd to same
share
I am kinda confused over the change of dedup ratio from changing the record
size, since it should dedup
I found the VHD specification here:
http://download.microsoft.com/download/f/f/e/ffef50a5-07dd-4cf8-aaa3-442c0673a029/Virtual%20Hard%20Disk%20Format%20Spec_10_18_06.doc
I am not sure if i understand it right, but it seems like data on disk gets
compressed into the vhd (no empty space), so even
Hi,
I am playing with opensolaris a while now. Today i tried to deduplicate the
backup VHD files Windows Server 2008 generates. I made a backup before and
after installing AD-role and copied the files to the share on opensolaris
(build 134). First i got a straight 1.00x, then i set recordsize
It was active all the time.
Made a new zfs with -o dedup=on, copied with default record size, got no dedup,
deleted files, set recordsize 4k, dedup ratio 1.29x
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Dedup is a key element for my purpose, because i am planning a central
repository for like 150 Windows Server 2008 (R2) servers which would take a lot
less storage if they dedup right.
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