Probably want to see an example:
Here are the contents of /proc/mdstat showing my RAID setup:
~$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sda1[0]
976507904 blocks super 1.2 512K chunks 2 near-copies [4/4] [UUUU]
unused devices: <none>
Here is the output from iostat:
~$ iostat
Linux 3.16.0-30-generic (ubuntu-14-host-1) 07/23/2015 _x86_64_
(8 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0.70 0.01 3.20 1.34 0.00 94.75
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
scd0 0.00 0.00 0.00 364 0
sda 34.46 3547.63 639.09 489331206
88150401
sdb 3.02 13.67 133.56 1884994
18422682
sde 33.64 3541.25 1168.16 488451131
161126847
sdd 33.70 3547.11 575.37 489259403
79361407
sdc 26.20 3541.55 3910.41 488492828
539369281
sdf 17.78 1150.44 0.02 158681884
2936
dm-0 5.42 13.65 133.56 1882281
18422676
dm-1 5.19 13.63 133.56 1880521
18422676
dm-2 0.00 0.01 0.00 1076
0
md0 13.28 18.22 1213.40 2513792
167365856
In this case sda,sdc,sdd, and sde are the raid
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You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to sysstat in Ubuntu.
https://bugs.launchpad.net/bugs/1477347
Title:
Output from iostat has the total read and total write columns
backwards in Ubuntu 14.04
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