missing SNMP disk counters

[Izzet Ergas]

I use a separate SNMP tool to graph some of the SNMP OIDs made available by Insight Manager 7 agents. Since last week the OIDs for Physical Disk and Logical Disk information started to return 0 disks in the system even though there are several disks and the Insight Agents used to see them all! It seems that the SNMP counters were disabled for some reason. This has happened on multiple computers.

My only guess is that one of the MS security patches deployed the same weekend caused this but since these are production servers I can't uninstall patches and reboot willy-nilly.

Has anyone else seen this issue? If yes, is there a way to get Insight Manager to see the disks again? All other SNMP OIDs exported by Insight Manager work fine.

Thanks

P.S. Here is the specific OID I'm referring to:

.iso.org.dod.internet.private.enterprises.compaq.cpqWinOsMgmt.cpqOsComponent.cpqOsPhysicalDisk

[David Claypool]

There have been a series of changes to the storage MIBs of the Insight agents beginning with 6.4. You probably have updated agents and now need to get updated MIBs.

[Izzet Ergas]

Thanks for the help but I've figured it out. The problem was that one of the MS patches we deployed turned off the disk counters. The solution was to run a diskperf -y and reboot.