Date: Thu, 18 Jun 2015 11:53:50 +0200 From: Willem Jan Withagen <wjw@digiware.nl> To: freebsd-fs@freebsd.org Subject: Layout of zpool list -v Message-ID: <5582952E.6020202@digiware.nl>
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Hi,
Call me picky, but then it confuses me every time.
I have this mirrored set with both cache and log.
Looking at it with zpool it looks like:
zdata 360G 50.4G 310G - 9% 14% ........
mirror 360G 50.4G 310G - 9% 14%
gpt/data0 - - - - - -
gpt/data1 - - - - - -
mirror 496M 800K 495M - 15% 0%
gpt/log0 - - - - - -
gpt/log1 - - - - - -
cache - - - - - -
gpt/cachedata0 31.7G 118M 31.6G - 0% 0%
gpt/cachedata1 31.7G 128M 31.6G - 0% 0%
Which (could) suggest that there are 2 mirrors in a raid0 config,
whereas it actually is a log/mirror attached.
Would it not be more informative if it looks like:
(if at all possible)
zdata 360G 50.4G 310G - 9% 14% ........
mirror 360G 50.4G 310G - 9% 14%
gpt/data0 - - - - - -
gpt/data1 - - - - - -
log - - - - - -
mirror 496M 800K 495M - 15% 0%
gpt/log0 - - - - - -
gpt/log1 - - - - - -
cache - - - - - -
gpt/cachedata0 31.7G 118M 31.6G - 0% 0%
gpt/cachedata1 31.7G 128M 31.6G - 0% 0%
Note that I've also indented the cache set.
I was going to add a patch, since it does not seem too complex, but I'm
really lost in the zfs/zpool code to get anywhere near the code that
actually does the work... Single stepping it in gdb is sort of a pain
since zpool is threaded??
If somebody could give me some pointers I'll have another go at it.
Thanx,
--WjW
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