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<div class="moz-cite-prefix">On 27/4/20 21:54, Gary Allen Vollink
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFwZXLfVmYCinDiB-GHuMEuZrroM9rjDLwe+nB9rQ18GLr088w@mail.gmail.com">
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">---------- Forwarded
message ----------<br>
From: Adam Goryachev <<a
href="mailto:mailinglists@websitemanagers.com.au"
target="_blank" moz-do-not-send="true">mailinglists@websitemanagers.com.au</a>><br>
<div>
<div>On 27/4/20 05:06, Gary Allen Vollink wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi all,
<div><br>
</div>
<div>I have a configuration which uses RAID
meta-devices set up as raid1 over empty slots for
GUI configuration and notification. As such, I have
md0 and md1 showing up as fatal errors in Xymon.
Again, this setup is standard for this
installation. md2 + are all normal normal, valid
(and actually hold mounted filesystems).</div>
<div><br>
</div>
<div>I'd normally expect to be able to set up
analysis.cfg to "something something IGNORE" for
this machine. Like:</div>
<div><br>
</div>
<div>HOST=<a href="http://vault.home.vollink.com"
target="_blank" moz-do-not-send="true">vault.home.vollink.com</a></div>
<div> RAID md0 IGNORE</div>
<div> RAID md1 IGNORE</div>
<div><br>
</div>
<div>Does such a thing exist (and I missed it/have the
syntax wrong?) If not, /could/ such a thing exist?</div>
<div><br>
</div>
<div>I'm starting to become used to just having a RED
screen (and that is dangerous).</div>
<div><br>
</div>
<div>If the answer to the above is all, 'no,' then
what is the best way to ignore all RAID for
that machine?</div>
<div><br>
</div>
<div>Thank you much for any thoughts,</div>
<div>Gary</div>
<div><br>
</div>
</div>
</blockquote>
<p>You will need to share a your /proc/mdstat and/or a
pointer to which ext script you are using to monitor
your md RAID. I suspect that your RAID arrays are
defined as a two member RAID1 with one missing member,
therefore, they would be expected to show as red,
because they are failed.</p>
<p>You could either define the RAID arrays as RAID1 with
only one member, or else define them as RAID0 with only
one member. <br>
</p>
<p>Or, you could add the spare drives as spares, or simply
not define them as RAID arrays until you actually need
to use them.</p>
<p>Regards,<br>
Adam</p>
</div>
</blockquote>
<div>Thank you for responding.</div>
<div><br>
</div>
<div>I'm going to guess that the answer to my actual question
- is there a way to ignore individual md failures - is "I
don't know". To be clear: "I don't know" is acceptable, I
read through source-code looking for a way, and I couldn't
find one (and so-many bits are auto-loaded that it's super
hard to be sure enough to say "no"). I was hoping someone
on-list would actually know, but I get why that might not be
the case.</div>
<div><br>
</div>
</div>
</div>
</blockquote>
I guess I was saying I am pretty sure that option doesn't exist, but
trying to find out more info on why you are trying to do this in the
first place.<br>
<blockquote type="cite"
cite="mid:CAFwZXLfVmYCinDiB-GHuMEuZrroM9rjDLwe+nB9rQ18GLr088w@mail.gmail.com">
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<div>To the questions:</div>
<div>
<pre>============================ /proc/mdstat ===========================
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid5 sda5[0] sdc5[2] sdb5[1]
11711382912 blocks super 1.2 level 5, 64k chunk, algorithm 2 [3/3] [UUU]
md1 : active raid1 sda2[0] sdb2[1] sdc2[2]
2097088 blocks [6/3] [UUU___]
md0 : active raid1 sda1[0] sdb1[1] sdc1[2]
2490176 blocks [6/3] [UUU___]
unused devices: <none>
============================ /proc/mdstat ===========================
</pre>
</div>
<div>I'm using the script here: <a
href="http://www.it-eckert.com/blog/2015/agent-less-monitoring-with-xymon/"
moz-do-not-send="true">http://www.it-eckert.com/blog/2015/agent-less-monitoring-with-xymon/</a>
(xymon-rclient.sh).</div>
<div><br>
</div>
</div>
</div>
</blockquote>
<p>I'm not familiar with this script, but my guess is that you could
modify it to behave as you want, if you want to. That is the best
part of xymon, most of it is simple shell scripts, and so very
easy to modify.<br>
</p>
<blockquote type="cite"
cite="mid:CAFwZXLfVmYCinDiB-GHuMEuZrroM9rjDLwe+nB9rQ18GLr088w@mail.gmail.com">
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<div>Specifically, the platform is Synology and yes, Synology
runs two raid1 arrays over all of the slots (even though
some are empty). I could fix this easily by adding hard
drives into the empty slots, but I specifically bought this
unit so that I could expand it later. That is, I both
understand that this is properly showing broken but
unmounted RAIDs and I know why those RAIDs are broken (and
thus why the errors are nominal in my setup).</div>
<div><br>
</div>
</div>
</div>
</blockquote>
I suspect (but never owner a synology nas) that md0/md1 are used for
the OS, and/or something similar. Possibly only mounted/used during
boot up, or perhaps for OS updates. You might be able to discuss
with synology, and there may be a update available to fix this.
Given md2 clearly is grown as you add a drive, then it should be
capable to use the same process to grow md0/md1.<br>
<blockquote type="cite"
cite="mid:CAFwZXLfVmYCinDiB-GHuMEuZrroM9rjDLwe+nB9rQ18GLr088w@mail.gmail.com">
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<div>I am still hoping that a failure state that is nominal
would be something I'd be able to ignore (just as I can
ignore specific libraries or individual filesystems).</div>
<div><br>
</div>
</div>
</div>
</blockquote>
I guess "most" people don't setup broken RAID on purpose, and even
if they expect it to be broken for a (short) period of time, then
they might ack the alert, leaving it as a reminder to fix it soon
(eg waiting for a replacement drive/etc).<br>
<blockquote type="cite"
cite="mid:CAFwZXLfVmYCinDiB-GHuMEuZrroM9rjDLwe+nB9rQ18GLr088w@mail.gmail.com">
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<div class="gmail_quote">
<div>The other choice for me is to entirely remove the mdstat
portion of Ekert's script. (Sadly, there is nothing else
for Synology monitoring that I can get to work at all, and
that simple script otherwise covers all of what I need).
This means, I won't be notified (through Xymon) if one of my
drives does fail, but it's better than getting used to
ignoring a RED background.<br>
</div>
<div><br>
</div>
</div>
</div>
</blockquote>
<p>So, you have at least three options:</p>
<p>1) Try to fix the synology to avoid having broken RAID devices
(ie, reduce the number of RAID members from 6 to 3 for md0/md1)</p>
<p>2) Try to fix the monitoring script, possibly add some sort of
"config" file, so if an array is detected as broken, then check
the config, the config can either specify to ignore the array
completely, or specify the number of members drives to mark it as
"green". This way, md0 reduced from 3 drives to 2, you would still
get an alert. Another option would be to use the config to only
monitor specified arrays, in this case md2.<br>
</p>
<p>3) Remove the monitoring with xymon.</p>
<p>Regards,<br>
Adam<br>
</p>
<blockquote type="cite"
cite="mid:CAFwZXLfVmYCinDiB-GHuMEuZrroM9rjDLwe+nB9rQ18GLr088w@mail.gmail.com">
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<div class="gmail_quote">
<div>[Archive readers: It is okay to contact me directly with
questions about my setup]</div>
<div><br>
</div>
<div>Thank you,</div>
<div>Gary Allen Vollink</div>
<div><br>
</div>
</div>
</div>
<br>
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