Date: Mon, 16 Sep 2013 15:29:41 +0300 From: Dmitriy Makarov <supportme@ukr.net> To: Steven Hartland <killing@multiplay.co.uk> Cc: "Justin T. Gibbs" <gibbs@freebsd.org>, freebsd-current@freebsd.org, Borja Marcos <borjam@sarenet.es> Subject: Re[3]: ZFS secondarycache on SSD problem on r255173 Message-ID: <1379334340.567465877.0b1lli6r@fmst-6.ukr.net> In-Reply-To: <1379333192.127359970.ma5jnbc5@fmst-6.ukr.net> References: <1379069539.824504225.3b9xwugp@fmst-6.ukr.net> <EAD621124C1549208BD93D20657E1BD0@multiplay.co.uk> <74C1D072-77BB-4D6C-B78F-C8D2731FA0CF@sarenet.es> <DEF92E3685F3411D9B605ACFBEA16D94@multiplay.co.uk> <1379333192.127359970.ma5jnbc5@fmst-6.ukr.net>
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And have to say that ashift of a main pool doesn't matter.
I've tried to create pool with ashift 9 (default value) and with ashift 12 with creating gnops over gpart devices, export pool, destroy gnops, import pool. There is the same problem with cache device.
There is no problem with ZIL devices, they reports ashift: 12
children[1]:
type: 'disk'
id: 1
guid: 6986664094649753344
path: '/dev/gpt/zil1'
phys_path: '/dev/gpt/zil1'
whole_disk: 1
metaslab_array: 67
metaslab_shift: 25
ashift: 12
asize: 4290248704
is_log: 1
create_txg: 22517
Problem with cache devices only, but in zdb output tere is nothing at all about them.
--- Исходное сообщение ---
От кого: "Steven Hartland" < killing@multiplay.co.uk >
Дата: 16 сентября 2013, 14:18:31
Cant say I've ever had a issue with gnop, but I haven't used it for
some time.
I did have a quick look over the weekend at your issue and it looks
to me like warning for the cache is a false positive, as the vdev
for cache doesn't report an ashift in zdb so could well be falling
back to a default value.
I couldn't reproduce the issue for log here, it just seems to work
for me, can you confirm what ashift is reported for your devices
using: zdb <pool>
Regards
Steve
----- Original Message -----
From: "Borja Marcos" <
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Дмитрий Макаров
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Дмитрий Макаров
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