From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: Wolfgang Denk <wd@denx.de>
Cc: Linux Raid <linux-raid@vger.kernel.org>
Subject: Re: raid6check extremely slow ?
Date: Thu, 14 May 2020 21:51:21 +0200 (CEST) [thread overview]
Message-ID: <1430936688.3381175.1589485881380.JavaMail.zimbra@karlsbakk.net> (raw)
In-Reply-To: <20200514182041.CDF1F240E1A@gemini.denx.de>
what?
Vennlig hilsen
roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
http://blogg.karlsbakk.net/
GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt
--
Hið góða skaltu í stein höggva, hið illa í snjó rita.
----- Original Message -----
> From: "Wolfgang Denk" <wd@denx.de>
> To: "Roy Sigurd Karlsbakk" <roy@karlsbakk.net>
> Cc: "Linux Raid" <linux-raid@vger.kernel.org>
> Sent: Thursday, 14 May, 2020 20:20:41
> Subject: Re: raid6check extremely slow ?
> Dear Roy,
>
> In message <1999694976.3317399.1589476824607.JavaMail.zimbra@karlsbakk.net> you
> wrote:
>>
>> Try checking with iostat -x to see if one disk is performing worse
>> than the other ones. This sometimes happens and can indicate a
>> failure that the normal SMART/smartctl stuff can't identify. If
>> you see a utilisation of one of the disks at 100%, that's the
>> bastard. Under normal circumstances, you probably won't be able to
>> return that, since it "works". There's a quick fix for that,
>> though. Just unplug the disk, plug it into a power cable, let it
>> spin up and then sharpy twist it 90 degees a few times, and it's
>> all sorted out and you can return it ;)
>
> Everything looks unsuspicious to me - all disks behave the same:
>
> # iostat -x /dev/sd[efhijklm] 1 3
> Linux 5.6.8-300.fc32.x86_64 (atlas.denx.de) 2020-05-14 _x86_64_
> (8 CPU)
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.19 0.00 1.06 0.15 0.00 98.60
>
> Device r/s rkB/s rrqm/s %rrqm r_await rareq-sz w/s
> wkB/s wrqm/s %wrqm w_await wareq-sz d/s dkB/s drqm/s %drqm
> d_await dareq-sz f/s f_await aqu-sz %util
> sde 20.08 360.56 2.53 11.20 0.34 17.95 0.49
> 0.10 0.02 3.41 32.36 0.20 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 32.74 0.02 2.11
> sdf 20.07 360.56 2.54 11.24 0.33 17.96 0.49
> 0.10 0.02 3.40 44.23 0.20 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 44.77 0.02 2.09
> sdh 20.08 360.54 2.53 11.17 0.35 17.95 0.49
> 0.10 0.02 3.40 43.47 0.20 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 44.01 0.02 2.40
> sdi 20.08 360.58 2.54 11.23 0.34 17.96 0.49
> 0.10 0.02 3.40 26.22 0.21 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 26.50 0.01 2.84
> sdj 20.45 360.56 2.16 9.54 0.34 17.63 0.49
> 0.10 0.02 3.38 35.19 0.20 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 35.60 0.02 2.46
> sdk 20.08 360.54 2.53 11.21 0.35 17.95 0.49
> 0.10 0.02 3.42 40.63 0.21 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 41.13 0.02 2.36
> sdl 20.07 360.57 2.54 11.24 0.34 17.96 0.49
> 0.10 0.02 3.39 23.61 0.20 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 23.84 0.01 2.70
> sdm 20.08 360.55 2.53 11.21 0.53 17.96 0.49
> 0.10 0.02 3.41 21.52 0.20 0.00 0.00 0.00 0.00
> 0.00 0.00 0.49 21.67 0.01 2.64
>
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.38 0.00 1.12 0.12 0.00 98.38
>
> Device r/s rkB/s rrqm/s %rrqm r_await rareq-sz w/s
> wkB/s wrqm/s %wrqm w_await wareq-sz d/s dkB/s drqm/s %drqm
> d_await dareq-sz f/s f_await aqu-sz %util
> sde 20.00 320.00 0.00 0.00 0.25 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.00
> sdf 20.00 320.00 0.00 0.00 0.25 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.00
> sdh 20.00 320.00 0.00 0.00 0.30 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.00
> sdi 20.00 320.00 0.00 0.00 0.25 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 4.00
> sdj 20.00 320.00 0.00 0.00 0.25 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.00
> sdk 20.00 320.00 0.00 0.00 0.30 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.00
> sdl 20.00 320.00 0.00 0.00 0.25 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 4.00
> sdm 20.00 320.00 0.00 0.00 0.35 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.00
>
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.25 0.00 0.88 0.00 0.00 98.87
>
> Device r/s rkB/s rrqm/s %rrqm r_await rareq-sz w/s
> wkB/s wrqm/s %wrqm w_await wareq-sz d/s dkB/s drqm/s %drqm
> d_await dareq-sz f/s f_await aqu-sz %util
> sde 21.00 336.00 0.00 0.00 0.24 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.10
> sdf 21.00 336.00 0.00 0.00 0.24 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.10
> sdh 21.00 336.00 0.00 0.00 0.24 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.30
> sdi 21.00 336.00 0.00 0.00 0.24 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 4.00
> sdj 21.00 336.00 0.00 0.00 0.24 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.10
> sdk 21.00 336.00 0.00 0.00 0.24 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.10
> sdl 21.00 336.00 0.00 0.00 0.29 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 4.20
> sdm 21.00 336.00 0.00 0.00 0.38 16.00 0.00
> 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
> 0.00 0.00 0.00 0.00 0.00 2.10
>
>
>
> Best regards,
>
> Wolfgang Denk
>
> --
> DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
> We see things not as they are, but as we are. - H. M. Tomlinson
next prev parent reply other threads:[~2020-05-14 19:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-10 12:07 raid6check extremely slow ? Wolfgang Denk
2020-05-10 13:26 ` Piergiorgio Sartor
2020-05-11 6:33 ` Wolfgang Denk
2020-05-10 22:16 ` Guoqing Jiang
2020-05-11 6:40 ` Wolfgang Denk
2020-05-11 8:58 ` Guoqing Jiang
2020-05-11 15:39 ` Piergiorgio Sartor
2020-05-12 7:37 ` Wolfgang Denk
2020-05-12 16:17 ` Piergiorgio Sartor
2020-05-13 6:13 ` Wolfgang Denk
2020-05-13 16:22 ` Piergiorgio Sartor
2020-05-11 16:14 ` Piergiorgio Sartor
2020-05-11 20:53 ` Giuseppe Bilotta
2020-05-11 21:12 ` Guoqing Jiang
2020-05-11 21:16 ` Guoqing Jiang
2020-05-12 1:52 ` Giuseppe Bilotta
2020-05-12 6:27 ` Adam Goryachev
2020-05-12 16:11 ` Piergiorgio Sartor
2020-05-12 16:05 ` Piergiorgio Sartor
2020-05-11 21:07 ` Guoqing Jiang
2020-05-11 22:44 ` Peter Grandi
2020-05-12 16:09 ` Piergiorgio Sartor
2020-05-12 20:54 ` antlists
2020-05-13 16:18 ` Piergiorgio Sartor
2020-05-13 17:37 ` Wols Lists
2020-05-13 18:23 ` Piergiorgio Sartor
2020-05-12 16:07 ` Piergiorgio Sartor
2020-05-12 18:16 ` Guoqing Jiang
2020-05-12 18:32 ` Piergiorgio Sartor
2020-05-13 6:18 ` Wolfgang Denk
2020-05-13 6:07 ` Wolfgang Denk
2020-05-15 10:34 ` Andrey Jr. Melnikov
2020-05-15 11:54 ` Wolfgang Denk
2020-05-15 12:58 ` Guoqing Jiang
2020-05-14 17:20 ` Roy Sigurd Karlsbakk
2020-05-14 18:20 ` Wolfgang Denk
2020-05-14 19:51 ` Roy Sigurd Karlsbakk [this message]
2020-05-15 8:08 ` Wolfgang Denk
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