SNMP and LVM Configuration in HPUX v3

[Joao Rei]

Hello,

We use SNMP to generate alarms in our nagios system.

In a itanium 11.31 system after vgimport of a volume group we cant get the filesystem information with SNMP.

I mounted two new filesystems from the vgimport VG:

/dev/vg02/backup 4096000000 3547867238 513874518 87% /backup_omniback
/dev/vg02/backup2 1228800000 281361175 888223904 24% /backup_omniback2


Is It because the size the filesystem?
Or the lenght of the data?

We use the following command in a working system:

./check_snmp_hpux_storage.pl -H [IP2] -C [SNMPSTRING] -m / -w 99 -c 100
[FS1]: 100%used(0MB/0MB) [FS2]: 17%used(424MB/2512MB) [FS3]: 81%used(6482MB/8000MB) [FS4]: 31%used(625MB/2000MB) [FS5]: 39%used(5814MB/15008MB) [FS6]: 7%used(22MB/304MB) [FS7]: 1%used(2MB/128MB) [FS8]: 29%used(4336MB/15008MB) [FS9]: 58%used(582MB/1008MB) (>100%) : CRITICAL

But on my vgimport system we get:

./check_snmp_hpux_storage.pl -H [IP1] -C [SNMPSTRING] -m / -w 99 -c 100
ERROR: Description/Type table : Requested table is empty or does not exist.

We stop having access to SNMP data after vgimport and mount of 2 filesystems.

Did anyone had the same problem?

Regards,

Joao Rei

[Olivier Masse]

That script probably might not support the output of LVM commands at 11.31 which had a few changes due to LVM 2.0. You can try contacting the author of the script or try modifying it yourself.

[Fabio Ettore]

Hi,

I don't know if it's your situation but I'd check if SNMP agents are running on the vgimport-system. Consider that SNMP replies to all of that kind of requests only if agents are running. They are usually 4:

# ps -ef|grep -i snmp
root 5860 1 0 Dec 15 ? 0:33 /usr/sbin/snmpdm
root 5903 1 0 Dec 15 ? 0:00 /usr/lbin/cmsnmpd
root 9769 9749 1 09:58:59 pts/0 0:00 grep -i snmp
# ps -ef|grep -i mib
root 5887 1 0 Dec 15 ? 3:12 /usr/sbin/mib2agt
# ps -ef|grep -i unix
root 5871 1 0 Dec 15 ? 0:00 /usr/sbin/hp_unixagt

- snmpdm starts with /sbin/init.d/SnmpMaster;
- cmsnmpd starts with /sbin/init.d/cmsnmpagt;
- mib2agt starts with /sbin/init.d/SnmpMib2;
- hp_unixagt starts with /sbin/init.d/SnmpHpunix.

If they are not up then run them by rc script under /sbin/init.d starting from SnmpMaster.

HTH.

Best regards,
Fabio

[Fabrice Pouchot]

Hi,
Do you finaly found an explanation ?
Is it related to LVM V2.0 or something else?

Regards
Fabrice

[Joao Rei]

I found no solution.

[Dave Johnson_1 · Accepted solution]

If you post the program check_snmp_hpux_stroage.pl I would be happy to have a look at it.