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Rooney
Apprentice
Joined: 07 Aug 2003
Posts: 193
Location: Sheffield, UK
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 Posted: Thu Mar 18, 2004 2:11 pm Post subject: MRTG and SNMP (disks) |
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I put this in the wrong forum so this is a cut and paste from the Doc, Tips & Tricks.
Why does snmp report the wrong disk size and does any one know how i can set this right.
The / is a 20GB and the /home is a 80GB
HOST-RESOURCES-MIB::hrStorageDescr.2 = STRING: /
HOST-RESOURCES-MIB::hrStorageDescr.3 = STRING: /home
HOST-RESOURCES-MIB::hrStorageSize.2 = INTEGER: 4611420
HOST-RESOURCES-MIB::hrStorageSize.3 = INTEGER: 19487056
HOST-RESOURCES-MIB::hrStorageUsed.2 = INTEGER: 837368
HOST-RESOURCES-MIB::hrStorageUsed.3 = INTEGER: 9316812
but this is the reslut of a df
/dev/hda3 18445680 3349352 14159340 20% /
/dev/hdb3 77948224 37267248 36721356 51% /home
Ive tried snmpset but this just reports an error
beaver root # snmpset -v 2c -c root localhost HOST-RESOURCES-MIB::hrStorageSize.3 i 77948224
Error in packet.
Reason: notWritable (that object does not support modification)
Failed object: HOST-RESOURCES-MIB::hrStorageSize.3 |
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Rooney
Apprentice
Joined: 07 Aug 2003
Posts: 193
Location: Sheffield, UK
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stripe
n00b
Joined: 04 Jan 2004
Posts: 72
Location: Prague
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| Posted: Thu Mar 18, 2004 6:30 pm Post subject: why do it so difficult? |
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well, advantage of MRTG is, that is capable to monitor everything what ouputs two numbers. in this manner after I read the mrtg.org and many tips and tricks, I try to involve SNMP at least, as far as what is just config maker able to obtain....
my target, else is the common:
| Code: |
Target[hda1]: `/etc/mrtg/script/disk-hda1.sh`
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and script:
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#!/bin/bash
df -kl |grep /dev/hda1 |awk '{printf("%d\n",$3)}'
df -kl |grep /dev/hda1 |awk '{printf("%d\n",$2)}'
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works absolutely fine, without any walkings in SNMP and either by this you can monitor whatever you want very simply without any MIBs and else strange depencies...
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