[Bug 1477347] Re: Output from iostat has the total read and total write columns backwards in Ubuntu 14.04

2015-07-23 Thread bdwongsson 
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] []

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
   0.700.013.201.340.00   94.75

Device:tpskB_read/skB_wrtn/skB_readkB_wrtn
scd0  0.00 0.00 0.00364  0
sda   34.463547.63639.09 489331206
88150401
sdb 3.0213.67133.56  1884994
18422682
sde   33.643541.25   1168.16488451131   
161126847
sdd   33.703547.11   575.37  489259403   
79361407
sdc   26.203541.55   3910.41488492828   
539369281
sdf17.78  1150.44 0.02   158681884   
2936
dm-0  5.4213.65133.56  1882281
18422676
dm-1  5.1913.63133.56  1880521
18422676
dm-2  0.00 0.01 0.00   1076 
  0
md0  13.2818.22   1213.402513792
167365856


In this case sda,sdc,sdd, and sde are the raid

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Title:
  Output from iostat has the total read and total write columns
  backwards in Ubuntu 14.04

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[Bug 1477347] [NEW] Output from iostat has the total read and total write columns backwards in Ubuntu 14.04

2015-07-22 Thread bdwongsson 
Public bug reported:

After freshly building a raid 10 using mdadm I copied about a hundred GB
of data to the raid. When I check iostat output the numbers read are WAY
over the numbers written in only a few minutes after copying. Also being
raid 10 the written amount should be about equal, they are wildly
different, which to me looks more like random reads.

** Affects: sysstat (Ubuntu)
 Importance: Undecided
 Status: New

** Summary changed:

- Output from upstate has the total read and total write columns backwards in 
Ubuntu 14.04
+ Output from iostat has the total read and total write columns backwards in 
Ubuntu 14.04

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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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https://bugs.launchpad.net/ubuntu/+source/sysstat/+bug/1477347/+subscriptions

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