ucd/net snmp Device (Disk) I/O templates - Updated - v2

Rodre · Joined: 22 Jul 2005 Posts: 23

I updated my orginal post to reflect this incompatibilty. Hopefully that will stop others from wasting their time. I am currently working on some Windows stuff and will post it here when it is completed. I expect it will probably be at least a few weeks before I get around to it again.

~Rodre

redouane.doumer · Joined: 09 Sep 2005 Posts: 1

Any progress on that yet?

Thanks

Redouane

tenkawa · Joined: 24 Jun 2005 Posts: 1

Hi rodre,

first of all i would like to thanks for your work.

But i am unable to get any graphs. I have done everything :

->copy the xml into the correct path of cacti
->import all the xml files
-> created the graphs
-> but it stiils polls nothing

the snmpwalk command shows me all the UCD-DISK IO.

the error i have when i turn on debug mode is :
ERROR: opening '/home/sources/Cacti_mrtg/extract/cacti-0.8.6g/rra/mandrake_localhost_5min_loadavg_63.rrd': No such file or directory

thx in advance for your help.

tman · Cacti User Joined: 14 Oct 2004 Posts: 87

I wanted to implement this on our Linux servers here as well, but I found (in my investigations) that the diskIO function is actually only natively supported in FreeBSD (and variants).

Distributions from the like of Redhat do not support diskIO, and indeed in the private MIB for net-snmp it is listed under 'experimental'. I've never seen one Linux box export these OID's, so gave up after numerous failed attempts to build kernels/net-snmp with these features enabled.

roslb · Joined: 21 Nov 2005 Posts: 2

Error: XML parse error.

net-snmp_devIO-BytesRW_graphTMPL.xml
net-snmp_devIO-LoadAVG_graphTMPL.xml
net-snmp_devIO-ReadsWrites_graphTMPL.xml

system Linux 9 rrdtools1.2.9 cacti0.86g-patched

very thanks

xyleme · Joined: 15 Dec 2005 Posts: 1

Hi I've got the following error when I've tried to add a Get Disk I/O to a device

Notice: Undefined index: oid_index in /srv/www/htdocs/cacti/lib/data_query.php on line 156

Notice: Undefined index: oid_index in /srv/www/htdocs/cacti/lib/data_query.php on line 159

Warning: Variable passed to each() is not an array or object in /srv/www/htdocs/cacti/lib/data_query.php on line 513

Warning: Cannot modify header information - headers already sent by (output started at /srv/www/htdocs/cacti/lib/data_query.php:156) in /srv/www/htdocs/cacti/host.php on line 110

thanks a lot

sgolby · Joined: 10 Jan 2006 Posts: 3

More as a confirmation than anything this is what I'm getting from my Linux Red Hat box on which I just installed a brand new net-snmp-5.3 from source.

# snmpwalk -Os -c <community> -v 2c utl1 .1.3.6.1.4.1.2021.13.15
.1.3.6.1.4.1.2021.13.15 = No Such Object available on this agent at this OID

# snmptable -v 2c -c <community> utl1 diskIOTable
diskIOTable: Unknown Object Identifier (Sub-id not found: iso -> diskIOTable)

Getting the same type of thing when making the Gentoo boxes running net-snmp 5.2.1 look at themselves
# snmpwalk -c <community> -v 2c localhost .1.3.6.1.4.1.2021.13.15.1.1.1
UCD-SNMP-MIB::ucdExperimental.15.1.1.1 = No Such Object available on this agent at this OID

Which explains why the templates didn't work even though they imported fine.

I'm going to look into the options for loading the MIB, will post if I come up with a solution.

paulbeard206 · Cacti User Joined: 30 Jul 2005 Posts: 106

I am interested in getting this going but I can't tell if there's anything here I can use as a basis or if I should just start from scratch.

I tried a walkthrough on this forum in converting script results to graphs but it didn't seem to help me much on getting SNMP queries to graphs.

snmpget -c<myob> -v2c p1nfs1 1.3.6.1.4.1.2021.13.15.1.1.6.17 1.3.6.1.4.1.2021.13.15.1.1.5.17
UCD-DISKIO-MIB::diskIOWrites.17 = Counter32: 335062
UCD-DISKIO-MIB::diskIOReads.17 = Counter32: 26718

Is there a more basic primer on this? Perhaps one that doesn't rely on an existing xml file would be more useful.

paulbeard206 · Cacti User Joined: 30 Jul 2005 Posts: 106

dust2k · Cacti User Joined: 04 Dec 2005 Posts: 85

spoier · Joined: 05 May 2006 Posts: 2

spoier · Joined: 05 May 2006 Posts: 2

Also, when I add a graph for a device such as read/write bytes on ar0, then ar0 is no greyed out and I can't also add a graph for reads/writes or load averages....?

cacti-0.8.6h

Thanks

foobie · Joined: 27 Jun 2006 Posts: 3

Just a heads up to others reading this thread - the UCD-DISKIO-MIB isn't supported on many linux distros, including RHEL3, RHEL4 and (consequently) CentOS3 and CentOS4.

scubabri · Joined: 13 Jul 2006 Posts: 27

I was able to import all of the other xml files, with the response that "cacti has imported the following items"

there is no response for the net-snmp_devio.xml import, did I miss something?

sb

scubabri · Joined: 13 Jul 2006 Posts: 27