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View Code? Open in Web Editor NEWGnuplot a servers sar data files and create a HTML summary.
License: GNU General Public License v3.0
Gnuplot a servers sar data files and create a HTML summary.
License: GNU General Public License v3.0
We have this info from sar.
tps
Indicate the number of transfers per second that were issued to the
device. Multiple logical requests can be combined into a single I/O
request to the device. A transfer is of indeterminate size.
rd_sec/s
Number of sectors read from the device. The size of a sector is 512
bytes.
wr_sec/s
Number of sectors written to the device. The size of a sector is 512
bytes.
avgrq-sz
The average size (in sectors) of the requests that were issued to the
device.
avgqu-sz
The average queue length of the requests that were issued to the
device.
await
The average time (in milliseconds) for I/O requests issued to the
device to be served. This includes the time spent by the requests in
queue and the time spent servicing them.
svctm
The average service time (in milliseconds) for I/O requests that were
issued to the device.
%util
Percentage of CPU time during which I/O requests were issued to the
device (bandwidth utilization for the device). Device saturation
occurs when this value is close to 100%.
And also a machine may have lots of disk devices. So it's a lot of
graphs that one could generate.
Guess, you could do read/write Megabytes per second using rd_sec/s and
wt_sec/s. If I also draw %util on the same graph using the right y2 axis
it might not be too bad for one device? What info do you normally look
at? If could do two graphs per device, the second one would be svctm and
await on the y axis with avgrq-sz and avgqu-sz on y2 and maybe put tps
in their somewhere but not sure. Guess I'll have to see how it all looks
and judge from there also.
A user suggested an option to get the data for the last x number of hours.
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