On Thu, 03 Mar 2016 15:35:21 +0100 Mateusz Korniak <mateusz-lists@xxxxxxxxxxxxxx> wrote: > On Thursday 03 March 2016 19:30:26 Roman Mamedov wrote: > > But is that broken down somewhere to show which particular block device is > > being the most 'waited for'? > > iostat ? > > r_await w_await svctm %util columns? Cheers -- never knew there was this 'extended' output mode in iostat. Indeed it pinpoints the culprit nicely. Device: [...] wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sde1 [...] 53748.00 969.01 1.95 17.46 68.00 17.00 4.09 45.40 sdf1 [...] 49410.75 1176.97 32.09 393.95 106.00 397.42 11.90 100.00 sdg1 [...] 50230.00 995.17 7.12 66.81 88.00 66.60 6.08 61.40 sdh1 [...] 53110.00 970.89 2.46 22.21 46.40 21.64 4.64 50.80 -- With respect, Roman
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