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<DIV dir=ltr align=left><FONT size=2 face=Arial><SPAN
class=602313812-09022015>Hi Adam,</SPAN></FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2 face=Arial>We are using
Cambridge University's DRBD Xymon script from here:</FONT></SPAN></DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2 face=Arial><A
href="http://www.ch.cam.ac.uk/computing/drbd-xymon-script">http://www.ch.cam.ac.uk/computing/drbd-xymon-script</A></FONT></SPAN></DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2 face=Arial>It works well for
status colours, but it does not do graphing as far as I
know.</FONT></SPAN></DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2 face=Arial>Output is simple,
like this:</FONT></SPAN></DIV>
<DIV><SPAN class=602313812-09022015><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=602313812-09022015>
<H3>Mon Feb 9 12:46:14 2015 - drbd OK</H3><PRE>version: 8.3.10 (api:88/proto:86-96)
<IMG border=0 alt=green src="http://89.222.2.9/xymon/gifs/green.gif" width=16 height=16> cluster_metadata [/dev/drbd0] is happy
<IMG border=0 alt=green src="http://89.222.2.9/xymon/gifs/green.gif" width=16 height=16> vg0_drbd [/dev/drbd1] is happy
<FONT face=Arial>Which is probably just as well, as I wouldn't know what dw was! What is it, and why should we be monitoring it?</FONT></PRE></SPAN></DIV><!-- Converted from text/rtf format -->
<P align=left><SPAN lang=en-gb><FONT size=2 face=Arial>Kind
regards,</FONT></SPAN> </P>
<P><SPAN lang=en-gb><FONT size=2 face=Arial>Seb<SPAN
class=602313812-09022015>A</SPAN> </FONT></SPAN> <BR></P>
<DIV> </DIV><BR>
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<FONT size=2 face=Tahoma><B>From:</B> Xymon [mailto:xymon-bounces@xymon.com]
<B>On Behalf Of </B>Adam Goryachev<BR><B>Sent:</B> 06 February 2015
03:16<BR><B>To:</B> xymon@xymon.com<BR><B>Subject:</B> [Xymon] DRBD
monitoring<BR></FONT><BR></DIV>
<DIV></DIV>I've spent some time using DRBD over the past few years, and have
been slowly fixing how Xymon monitors that. I was hoping to share my work on
xymonton, but while I've created an account, I'm not familiar with a dokuwiki,
or how to create pages/etc.<BR><BR>In any case, I'm not finished yet, so I'll
post what I have so far, and perhaps someone else can upload for me, and/or
discuss specific improvements.... One specific issue is that I am still using
"Hobbit", rather than xymon, so a number of variable names, filenames, etc
should probably be updated.<BR><BR>The first tool I use is a perl script
"check-drbd", I think I borrowed this from a nagios plugin or similar, but I
have made significant modifications to it since then (see attached)<BR><BR>The
second tool is a shell script called drbd, this simply calls the check-drbd,
and then reports the data back to xymon, as both a status message (to display
on screen) as well as a data message (to save into the rrd
files).<BR><BR>Also, the file for the client to actually run the script
clientlaunch_drbd.cfg<BR><BR>Finally, on the server side, we have the graph
definition for the hobbitgraph.d directory, which allows to see graphs of the
data over time (very useful) in the file hobbitgraph_drbd.cfg<BR><BR>Some
things I would like to change/fix are:<BR>1) to limit the graph to only one
drbd device per graph. (There aren't enough colours, and the graphs are too
messy to read anyway).<BR>2) be able to graph all drbd devices on one graph,
but only one of the values. eg, see all dw values on a single graph<BR>3) be
able to graph the sum of all the values, eg, similar to 2 (so only all the dw
values at once) but stacked so I can see each individual colour as well as the
total<BR><BR>I'm not sure the best way to make the above happen. I suppose I
could create another dozen graph definitions, but I'm hoping there might be a
better way.<BR><BR>Finally, now that the data is being added to the rrd, when
I eventually upgrade to a current release, I'll be able to do alerts based on
the values (eg, oos is too high - or non zero basically, or dw is too high and
therefore users will be seeing slow performance, etc).<BR><BR>Comments,
suggestions, etc, greatly appreciated. If nothing else, I hope this will be
useful to someone else.<BR><BR>Effectively, this will display the data on the
page like this (I have 18 drbd devices configured, 0 to 18 skipping
12):<BR><BR>
<H3>Fri Feb 6 13:27:03 AEDT 2015 DRBD OK 0 [OK], 1 [OK], 2 [OK], 3 [OK], 4
[OK], 5 [OK], 6 [OK], 7 [OK], 8 [OK], 9 [OK], 10 [OK], 11 [OK], 13 [OK], 14
[OK], 15 [OK], 16 [OK], 17 [OK], 18 [OK]</H3><PRE>drbd0 ns:59995764 nr:587 dw:59996747 dr:13440670 al:4315 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd1 ns:51177927 nr:1147 dw:51179332 dr:50184219 al:10914 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd2 ns:10390318 nr:0 dw:10390318 dr:17007325 al:2637 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd3 ns:473465956 nr:17032 dw:473475648 dr:1713963052 al:1850433 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd4 ns:5958452 nr:124 dw:5958580 dr:5663626 al:212 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd5 ns:413987326 nr:1531 dw:413989393 dr:245985408 al:158935 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd6 ns:17089136 nr:251116 dw:17342180 dr:116599072 al:1211 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd7 ns:0 nr:0 dw:0 dr:5662844 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd8 ns:63714682 nr:563 dw:63715479 dr:23877551 al:6582 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd9 ns:186293485 nr:362 dw:186293990 dr:480836789 al:59641 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd10 ns:59817651 nr:366 dw:59818057 dr:27584750 al:12039 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd11 ns:0 nr:0 dw:0 dr:664 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd13 ns:726120198 nr:474 dw:726126470 dr:1029163787 al:3647825 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd14 ns:783916639 nr:676 dw:783924754 dr:1103495545 al:4256267 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd15 ns:166529805 nr:0 dw:166529921 dr:83674337 al:139032 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd16 ns:0 nr:0 dw:0 dr:5661172 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd17 ns:1625540 nr:0 dw:1625540 dr:6601790 al:82 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
drbd18 ns:56091131 nr:705 dw:56091944 dr:37456802 al:77287 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 oos:0
</PRE>I was going to include the image, but it is 241k... take a look
at:<BR><IMG alt="graph image of drbd stats"
src="http://www.websitemanagers.com.au/support/hobbitgraph.png" width=673
height=3721 moz-do-not-send="true" NOSEND="1"><BR><BR>Note, all attachments
are tar + bzip2, reducing the original 44k down to
4k...<BR><BR>Regards,<BR>Adam<BR></BLOCKQUOTE></BODY></HTML>