2012-10-12 19:34, Freddie Cash пишет:
On Fri, Oct 12, 2012 at 3:28 AM, Jim Klimov <jimkli...@cos.ru> wrote:
In fact, you can (although not recommended due to balancing reasons)
have tlvdevs of mixed size (like in Freddie's example) and even of
different structure (i.e. mixing raidz and mirrors or even single
LUNs) by forcing the disk attachment.
My example shows 4 raidz2 vdevs, with each vdev having 6 disks, along
with a log vdev, and a cache vdev. Not sure where you're seeing an
imbalance. Maybe it's because the pool is currently resilvering a
drive, thus making it look like one of the vdevs has 7 drives?
No, my comment was about this pool having an 8Tb TLVDEV and
several 5.5Tb TLVDEVs - and that this kind of setup is quite
valid for ZFS - and that while striping data across disks
it can actually do better than round-robin, giving more data
to the larger components. But more weight on one side is
called imbalance ;)
Sorry if my using your example offended you somehow.
//Jim
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