[Xymon] Solaris 10 swap not showing on memory alert correctly?

[Gore, David W (David)]

Yeah it is not a zone there are all sorts of annoyances when using a zone and you do not have access to root.  I will take a look at the article but it may not answer my question of why Xymon is doing what it is doing.  'top' also reports the same thing as swap -s, not that is any guarantee of accuracy for such an old tool.  'top' is still one of my favorite tools although I wouldn't mind having the multi-cpu version that I see running on my hp-ux boxes running on Solaris.

~David

From: Vernon Everett [mailto:everett.vernon at gmail.com]
Sent: Wednesday, June 26, 2013 11:00 PM
To: Gore, David W (David)
Cc: xymon at xymon.com
Subject: Re: [Xymon] Solaris 10 swap not showing on memory alert correctly?

Solaris and swap is tricky to nail down, specifically because different commands will report different values, by calculating the values in different ways.
You need to choose your commands carefully, depending on what value you need to know.

This might help explain things.
http://www.f3partners.com/blog/bid/49584/Solaris-Swap-Q-A
It all becomes rather fuzzy when you consider what ZFS is doing in your memory.
Also, in a zone, all bets are off.
Caps in particular, on memory or swap, can completely muddy the water.
All the checks within the zone, will show the max available as being the capped value.
However when you interrogate the kernel for amount free, it returns what the kernel can see. And the kernel can see everything, because it exists in the global zone.

Regards
Vernon

P.S. WARNING: Thinking too hard about this can cause your brain to melt. :)


On 27 June 2013 00:38, Gore, David W (David) <david.gore at verizon.com<mailto:david.gore at verizon.com>> wrote:
Wed Jun 26 16:26:48 GMT 2013 - Memory low
   Memory              Used       Total  Percentage
yellow Physical          23355M      24576M         95%
green Swap                106M      35913M          0%

>From the client data:

[swap]
total: 18459352k bytes allocated + 3036456k reserved = 21495808k used, 32308920k available

I would expect to see the 21495808k used number?

Where is it getting the 106M number?  Anyone else seen this on Solaris?

~David


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