Hobbit 4.2.0 client and memory checks

["Ward, Martin" <Martin.Ward (at) colt.net>]

Hi all,

An issue has arisen over the Christmas period that is causing me some
confusion. I have a Sun server running sparc Solaris 10 which has the
4.2.0 Hobbit client installed on it, this client sends its data to my
4.2.2 Xymon server. The client machine has 64GB of memory and 16GB of
swap space.

The issue I have at the moment is that Xymon's web pages show the server
as having 64GB (or so) of swap and the swap is 91% full, yet a swift
look on the server itself shows it to have on 16GB of swap and none of
which is in use.

I have also confirmed that the machine this data is coming from is the
same as the one I think it is and that I am not logging on to a
different server!

The relevant portions of the client data are as follows:

[df]
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/odm                   0       0       0     0%    /dev/odm
swap                 5123480    1328 5122152     1%    /etc/svc/volatile
swap                 5122440     304 5122136     1%    /tmp
swap                 5122136       0 5122136     0%    /dev/vx/dmp
swap                 5122136       0 5122136     0%    /dev/vx/rdmp
/dev/md/dsk/d0       16525754 8227674 8132823    51%    /
/dev/md/dsk/d30      16525754 5177145 11183352    32%    /var
/dev/md/dsk/d40      1025903  654865  309484    68%    /home
...
[top]
load averages:  2.26,  2.30,  1.84;                    up 33+21:36:10
12:20:22
158 processes: 156 sleeping, 2 on cpu

Memory: 64G phys mem, 15G free mem, 16G swap, 16G free swap
...
[vmstat]
 kthr      memory            page            disk          faults
cpu
 r b w   swap  free  re  mf pi po fr de sr m0 m1 m2 m1   in   sy   cs us
sy id
 0 0 0 23250064 29333720 407 464 877 1891 1885 0 0 13 8 8 0 1862 9947
5678 5 1 93
 0 0 0 5123960 15420256 642 583 460 6928 6905 0 0 19 12 12 0 5384 34448
17397 15 4 81
...

So as you can see from the [top] section above the server has only 16GB
of swap configured, yet the memory web page for this server has:

 Tue Jan 6 12:40:20 GMT 2009 - Memory CRITICAL

      Memory              Used       Total  Percentage
green Physical          49541M      65536M         75%
red   Swap              57495M      62474M         92%


I guess I am having a problem understanding how Xymon interprets memory.
I am fairly sure I have looked at this in the past but I still don't
understand it 8-(

|\/|

--  
Martin W. Ward
TAC Network Systems Team Leader
COLT
Unit 12, Powergate Business Park
Volt Avenue, Park Royal, London
NW10 6PW, United Kingdom

Tel: + 44 (0)20 7863 5218   Internal: 8 441 5218
Fax: + 44 (0)20 7863 5610
Email: martin.ward (at) colt.net 
www.colt.net

Data | Voice | Managed Services


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