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From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
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To: Fabian Keil <freebsd-listen@fabiankeil.de>
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Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org
Subject: Re: HEADS UP: ZFSv28 is in!
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On Thu, 3 Mar 2011, Fabian Keil wrote:
>>
>> When you add the tuning back, does it take minutes again to boot? If
>> not, I assume it was cleaning up some leftovers the old version was not
>> able to cleanup.
>
> I haven't tried that yet, but as I didn't upgrade the system's
> storage pool I don't think ZFS is supposed to do any such clean-ups.

The new code likely does things like search for and reclaim leaked 
space.  Older zfs versions had some some bugs which could result in 
failing to reclaim space after a large file is deleted.

Bob
-- 
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/