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Running that caused one minor change, but didn't fix anything. The problem is block device names such as returned by the ucd diskio mib are essentially meaningless and and should be assumed to be randomly assigned on reboot, if not more often.
When I was doing my own thing with mrtg, I ran a script that mapped the snmp index to a string that I grubbed out of /dev/disk/by-id
I'm assuming that observium uses that table to map the snmp index to a diskio_id and uses that to store the data. If I go in and fix the index and description, will observium overwrite it. I'm assuming no, since it hasn't fixed itself.
On 03/11/2014 08:55 PM, Adam Armstrong wrote:
Hi,
You need to re-run discovery after changes. Some modules don't pick up changes during the poller, as it'd be too slow (it wouldn't really be slower for this module, but that's just how it was written).
./discovery.php -h all -m ucd-diskio
adam.
On 2014-03-11 18:41, Tony Lill wrote: Observium CE 0.13.10.4585 doesn't seem to handle renamed block devices very gracefully.
I added some disks to one of my boxes, which caused the old sda and sdb to come up as sdb and sdd. Now on the disk i/o page some devices are missing, some appear twice, most are displaying incorrect info.
I've attached the contents of the ucd_diskio table. sdc and it's partitions are missing and a number of the others are duplicated.
How do I clear up this mess? Ideally I'd like to keep the old data so I could see what effect the changes I'm making has.
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