Display statistics for mounted filesystems

[gitqlt]

Using sar -F (sadc option -S XDISK) we can get filesystem usage statistics. It would be nice to graph them too. Many thanks.

[Pitterling]

It seems data is already parsed, but there is no graph definition

<Stat name="misci_mountedfs">
   <headerstr>MBfsfree MBfsused %fsused %ufsused Ifree Iused %Iused FILESYSTEM</headerstr>
   <graphname>IGNORE</graphname>
</Stat>

I have never seen output for this and doubt this would be really meaningful to plot a graph over time. Nevertheless, please provide some ouput ..

thx

[gitqlt]

sar -F | head produces this output:

Linux 5.0.0-37-generic (workstation01)  12/10/2019  _x86_64_    (2 CPU)

12:00:01 AM  MBfsfree  MBfsused   %fsused  %ufsused     Ifree     Iused    %Iused FILESYSTEM
12:05:01 AM      5492      2507     31.34     36.66    493580     30708      5.86 /dev/sda5
12:05:01 AM      3364     12699     79.06     84.26    687301    361275     34.45 /dev/sda6
12:05:01 AM     63827    311522     83.00     88.08  24001704    418648      1.71 /dev/mapper/home
12:05:01 AM     28397      3729     11.61     16.76   2052540     44612      2.13 /dev/sda7
12:05:01 AM      8045        18      0.22      5.30    524259        29      0.01 /dev/mapper/vtmp
12:05:01 AM     11287      4775     29.73     34.93   1046667      1909      0.18 /dev/sda8
12:05:01 AM     16083        44      0.27      5.35   1048532        44      0.00 /dev/mapper/tmp

The daily graphics can occasionally be useful. This is for example a normal daily chart, produced by rrdtool. Conversely, if an anomaly occurs during the day (for example, when a new software version begins to occupy disk space), the onset and expiration of the anomaly can help locate the root-cause. rrdtool or any other monitoring do not always work. sadc monitoring however is active all the time, on all our systems.

[Pitterling]

Problem: FILESYSTEM is last column instead of first column. kSAR expects the instance as first column after date/time ...