More information about I/O activity while samba is running. This is a trace of I/O for /dev/md1. As you can see this is not much I/O in 1856 seconds. No writes in this time frame. The next trace is just of writes done in 1789 seconds. The kjournald writes are writes to the filesystem journal. The flush-9.1 are when data is flushed out to disk.
Am I the only one seeing that the disk does not sleep much when samba is running. When I talked to WD support they
said that it didnt matter if the drive does not sleep sense they is desiged to run all the time. My car can run 24 hours a day. But I don’t leave it idling when i’m not using it.
9,1 1 1 0.000000000 11220 Q RM 1736712 + 8 [monitorio.sh]
9,1 1 2 0.021721499 11220 Q RM 1736744 + 8 [monitorio.sh]
9,1 1 3 0.037318100 11222 Q R 1753120 + 8 [cat]
9,1 1 4 0.069944170 11224 Q R 2788088 + 8 [df]
9,1 0 1 10.665129780 11308 Q R 2793128 + 8 [grep]
9,1 1 5 10.670922600 11310 Q R 2573752 + 8 [grep]
9,1 1 6 10.677596065 11309 Q R 2796568 + 8 [ls]
9,1 0 2 10.680551880 11311 Q R 2790776 + 8 [sed]
9,1 1 7 10.696631265 11310 Q R 2573920 + 8 [grep]
9,1 0 3 11.052052904 11336 Q R 3122376 + 8 [find]
9,1 0 4 11.073770760 11336 Q R 2553416 + 128 [find]
9,1 0 5 11.073851380 11336 Q R 2553544 + 128 [find]
9,1 1 8 11.106559680 11342 Q R 3261184 + 8 [tr]
9,1 1 9 11.171188570 11344 Q R 2798056 + 8 [touch]
9,1 1 10 11.416879040 11363 Q R 1493432 + 48 [mdadm]
9,1 0 6 11.468948610 11368 Q R 2791088 + 8 [rm]
9,1 0 7 15.593399595 417 Q WS 1616136 + 8 [kjournald]
9,1 0 8 15.618901635 417 Q WS 1616144 + 8 [kjournald]
9,1 0 9 15.619333065 417 Q WBS 1616152 + 8 [kjournald]
9,1 0 10 50.493348100 10901 Q W 263152 + 8 [flush-9:1]
9,1 0 11 61.331933529 11378 Q R 3238064 + 16 [awk]
9,1 0 12 61.398781980 11383 Q R 2787944 + 8 [cat]
9,1 1 11 61.493110379 11389 Q R 3231624 + 8 [xargs]
9,1 1 12 61.501337089 11389 Q R 3231664 + 8 [xargs]
9,1 1 13 61.636589875 11392 Q R 2786864 + 40 [sh]
9,1 1 14 62.183898720 11428 Q R 3209912 + 8 [cut]
9,1 1 15 62.506342260 11446 Q R 3756592 + 8 [smartctl]
9,1 1 16 62.528581140 11446 Q R 3720056 + 128 [smartctl]
9,1 0 13 62.730351530 11449 Q R 2796856 + 8 [sleep]
9,1 0 14 734.621493704 12173 Q R 2794264 + 8 [date]
9,1 0 15 734.621973024 12173 Q R 2794304 + 8 [date]
9,1 0 16 734.636935085 12174 Q R 1492504 + 136 [hdparm]
9,1 1 17 748.326622640 12210 Q R 3251704 + 8 [stat]
9,1 1 18 748.368507205 12210 Q R 3251744 + 8 [stat]
9,1 1 19 1113.252708434 12570 Q RM 3165520 + 8 [sh]
9,1 0 17 1126.097877870 12632 Q RM 3247376 + 8 [sh]
9,1 1 20 1132.461047520 12635 Q R 2553160 + 128 [awk]
9,1 1 21 1132.461113030 12635 Q R 2553288 + 128 [awk]
9,1 0 18 1760.070899440 13328 Q RM 1736704 + 8 [ls]
9,1 0 19 1760.091557344 13328 Q RM 1806592 + 8 [ls]
9,1 0 20 1760.103520315 13328 Q RM 2162688 + 8 [ls]
9,1 0 21 1811.678619725 13576 Q R 2788088 + 8 [df]
9,1 0 22 1856.202189939 13604 Q R 3121576 + 8 [getRunLevel.pl]
9,1 0 23 1856.224286115 13604 Q R 3121616 + 8 [getRunLevel.pl]
9,1 0 24 1856.226256345 13604 Q R 2950904 + 128 [getRunLevel.pl]
9,1 0 25 1856.378248980 13606 Q R 1487456 + 8 [runlevel]
9,1 0 26 1856.419391340 13608 Q R 3156728 + 8 [expr]
9,1 0 27 1856.438768670 13608 Q R 3156768 + 8 [expr]
These are just the writes done in 1789 seconds
9,1 0 1 5.532680031 417 Q WS 1597536 + 8 [kjournald]
9,1 0 2 5.571569145 417 Q WS 1597544 + 8 [kjournald]
9,1 0 3 5.571930985 417 Q WBS 1597552 + 8 [kjournald]
9,1 1 4 11.532816481 417 Q WS 1597560 + 8 [kjournald]
9,1 1 5 11.562073985 417 Q WS 1597568 + 8 [kjournald]
9,1 0 4 11.562469250 417 Q WBS 1597576 + 8 [kjournald]
9,1 0 5 25.062365875 417 Q WS 1597584 + 8 [kjournald]
9,1 0 6 25.074632561 417 Q WS 1597592 + 8 [kjournald]
9,1 0 7 25.075022186 417 Q WBS 1597600 + 8 [kjournald]
9,1 1 13 30.532631396 417 Q WS 1597608 + 8 [kjournald]
9,1 1 14 30.554592581 417 Q WS 1597616 + 8 [kjournald]
9,1 1 15 30.554959931 417 Q WBS 1597624 + 8 [kjournald]
9,1 1 16 39.982593141 6792 Q W 3146096 + 8 [flush-9:1]
9,1 0 11 298.532581891 417 Q WS 2417672 + 8 [kjournald]
9,1 0 12 298.554649106 417 Q WS 1597632 + 8 [kjournald]
9,1 0 13 298.554673171 417 Q WS 1597640 + 8 [kjournald]
9,1 0 14 298.554681256 417 Q WS 1597648 + 8 [kjournald]
9,1 0 15 298.554688186 417 Q WS 1597656 + 8 [kjournald]
9,1 0 16 298.554694501 417 Q WS 1597664 + 8 [kjournald]
9,1 0 17 298.554701466 417 Q WS 1597672 + 8 [kjournald]
9,1 0 18 298.554708136 417 Q WS 1597680 + 8 [kjournald]
9,1 0 19 298.555331371 417 Q WBS 1597688 + 8 [kjournald]
9,1 0 20 328.572637716 417 Q WBS 1597696 + 8 [kjournald]
9,1 0 21 332.582586316 6792 Q W 0 + 8 [flush-9:1]
9,1 0 22 332.601167130 6792 Q W 8 + 8 [flush-9:1]
9,1 0 23 332.601200125 6792 Q W 2097160 + 8 [flush-9:1]
9,1 0 24 332.601219225 6792 Q W 2098688 + 8 [flush-9:1]
9,1 0 25 332.601237235 6792 Q W 2162688 + 8 [flush-9:1]
9,1 0 26 332.601256440 6792 Q W 2360288 + 8 [flush-9:1]
9,1 0 43 1015.572617441 417 Q WS 2417640 + 8 [kjournald]
9,1 0 44 1025.670731750 417 Q WS 1597704 + 8 [kjournald]
9,1 0 45 1025.670776105 417 Q WS 1597712 + 8 [kjournald]
9,1 0 46 1025.670801080 417 Q WS 1597720 + 8 [kjournald]
9,1 0 47 1025.670809160 417 Q WS 1597728 + 8 [kjournald]
9,1 0 48 1025.670817440 417 Q WS 1597736 + 8 [kjournald]
9,1 0 49 1025.670825080 417 Q WS 1597744 + 8 [kjournald]
9,1 0 50 1025.670832975 417 Q WS 1597752 + 8 [kjournald]
9,1 0 51 1025.671947020 417 Q WBS 1597760 + 8 [kjournald]
9,1 0 70 1045.572625051 417 Q WBS 1597768 + 8 [kjournald]
9,1 0 71 1060.292582521 8684 Q W 2360288 + 8 [flush-9:1]
9,1 0 72 1060.310939040 8684 Q W 0 + 8 [flush-9:1]
9,1 0 73 1060.310951060 8684 Q W 8 + 8 [flush-9:1]
9,1 0 74 1060.310970690 8684 Q W 2097160 + 8 [flush-9:1]
9,1 0 75 1060.310989265 8684 Q W 2098688 + 8 [flush-9:1]
9,1 0 76 1060.311006980 8684 Q W 2162688 + 8 [flush-9:1]
9,1 1 42 1744.532566146 417 Q WS 2417672 + 8 [kjournald]
9,1 0 77 1754.607626905 417 Q WS 1597776 + 8 [kjournald]
9,1 0 78 1754.607679410 417 Q WS 1597784 + 8 [kjournald]
9,1 0 79 1754.607690070 417 Q WS 1597792 + 8 [kjournald]
9,1 0 80 1754.607713205 417 Q WS 1597800 + 8 [kjournald]
9,1 0 81 1754.607720650 417 Q WS 1597808 + 8 [kjournald]
9,1 0 82 1754.607727970 417 Q WS 1597816 + 8 [kjournald]
9,1 0 83 1754.607734785 417 Q WS 1597824 + 8 [kjournald]
9,1 0 84 1754.608616825 417 Q WBS 1597832 + 8 [kjournald]
9,1 0 85 1774.562622236 417 Q WBS 1597840 + 8 [kjournald]
9,1 0 86 1789.452585636 9471 Q W 2162688 + 8 [flush-9:1]
9,1 0 87 1789.476443846 9471 Q W 2360288 + 8 [flush-9:1]
9,1 0 88 1789.476486626 9471 Q W 0 + 8 [flush-9:1]
9,1 0 89 1789.476495141 9471 Q W 8 + 8 [flush-9:1]
9,1 0 90 1789.476512386 9471 Q W 2097160 + 8 [flush-9:1]
9,1 0 91 1789.476529506 9471 Q W 2098688 + 8 [flush-9:1]