[hobbit] Missing partition in disk monitoring on Solaris 10

[Dominique Frise]

Benoit Schmid wrote:
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> Dominique Frise wrote:
>> From hobbitclient-sunos.sh you can see that Xymon uses following
>> commands to report disk usage
>> ...
>> echo "[df]"
>> ROOTFSTYPE=`/bin/df -n / | awk '{print $3}'`
>> /bin/df -F $ROOTFSTYPE -k
>> # Then see what fs types are in use, and weed out those we dont want.
>> FSTYPES=`/bin/df -n -l|cut -d: -f2 | awk '{print $1}'|egrep -v
>> "^${ROOTFSTYPE}|^proc|^fd|^mntfs|^ctfs|^devfs|^objfs|^nfs|^lofs|^sharefs"|sort|uniq`
>>
>> set $FSTYPES
>> while test "$1" != ""; do
>>   /bin/df -F $1 -k | egrep -v " /var/run" | tail +2
>>   shift
>> done
>> ...
>>
>> This means that /var/run, /dev/fd, /system/object, /etc/mnttab,
>> /system/contract, /proc and /dev mounts are excluded from the output.
>> /var and /common seem to be lofs mounts and will be excluded as well.
>>
> 
> On your solaris zones how do you monitor your filesysteme.
> The problem that I have with df on the global zone is that hobbit
> does not have read access to this var partition.
> Therefore it is not monitored to on the global zone.
> 
> How do you proceed to monitor your disk spaces on your solaris zones?
> I am thinking of patching this script.
> Is there a better solution?
> 
We use the sparse-root model for all of our Solaris servers running 
zones and do not have any issue like this.

Example from a server running 6 zones besides the global:

$ df -k
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/md/dsk/d0       91499930 10685571 79899360    12%    /
/devices                   0       0       0     0%    /devices
ctfs                       0       0       0     0%    /system/contract
proc                       0       0       0     0%    /proc
mnttab                     0       0       0     0%    /etc/mnttab
swap                 49238864    1440 49237424     1%    /etc/svc/volatile
objfs                      0       0       0     0%    /system/object
sharefs                    0       0       0     0%    /etc/dfs/sharetab
/platform/sun4u-us3/lib/libc_psr/libc_psr_hwcap2.so.1
                      91499930 10685571 79899360    12% 
/platform/sun4u-us3/lib/libc_psr.so.1
/platform/sun4u-us3/lib/sparcv9/libc_psr/libc_psr_hwcap2.so.1
                      91499930 10685571 79899360    12% 
/platform/sun4u-us3/lib/sparcv9/libc_psr.so.1
fd                         0       0       0     0%    /dev/fd
swap                 4194304      32 4194272     1%    /tmp
swap                 49237512      88 49237424     1%    /var/run
poolcpasd/root       30707712 2767296 20456153    12%    /zones/arescpasd
poolcpasp/root       30707712 2770120 20548811    12%    /zones/arescpasp
poolcpast/root       30707712 2770576 20547973    12%    /zones/arescpast
pooldev/root         108380160  911553 69755353     2%    /zones/aresdev
poolprd/root         146571264  819624 69509723     2%    /zones/aresprd
pooltst/root         146571264  815058 75230859     2%    /zones/arestst


Xymon displays:

  Wed May 27 08:00:20 CEST 2009 - Filesystems OK

Filesystem            kbytes    used   avail capacity  Mounted on
/dev/md/dsk/d0       91499930 10685575 79899356    12%    /
swap                 4194304      32 4194272     1%    /tmp
poolcpasd/root       30707712 2767296 20456153    12%    /zones/arescpasd
poolcpasp/root       30707712 2770120 20548809    12%    /zones/arescpasp
poolcpast/root       30707712 2770576 20547972    12%    /zones/arescpast
pooldev/root         108380160  911553 69755350     2%    /zones/aresdev
poolprd/root         146571264  819624 69509720     2%    /zones/aresprd
pooltst/root         146571264  815058 75230854     2%    /zones/arestst


Dominique