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@xxxxxxx> > To: "Roy Sigurd Karlsbakk" <roy@xxxxxxxxxxxxx> > Cc: "Linux Raid" <linux-raid@xxxxxxxxxxxxxxx> > Sent: Thursday, 14 May, 2020 20:20:41 > Subject: Re: raid6check extremely slow ? > Dear Roy, > > In message <1999694976.3317399.1589476824607.JavaMail.zimbra@xxxxxxxxxxxxx> 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@xxxxxxx > We see things not as they are, but as we are. - H. M. Tomlinson
