Various Linux distros - SNMP disk OID change

Hi @Stuart Weenig

Thanks for you detailed analysis, I have a bit more to add:

Our SNMPD config is nothing crazy, please note we use SNMPv3 (I don't know is this makes any difference in discovering logic compared to 1/2, I think not)

Here is the SNMPD config we used (Pushed with Puppet)

Quote

agentaddress udp:161

# Traditional Access Control
rocommunity public 127.0.0.1
rocommunity6 public ::1

# VACM Configuration
#       sec.name       source        community
com2sec notConfigUser  default       public

com2sec6 notConfigUser  default       public

#       groupName      securityModel securityName
group   notConfigGroup v1            notConfigUser
group   notConfigGroup v2c           notConfigUser

#       group          context sec.model sec.level prefix read       write notif
access  notConfigGroup ""      any       noauth    exact  systemview none  none
#       name          incl/excl  subtree             mask(optional)
view    systemview    included   .1.3.6.1.2.1.1
view    systemview    included   .1.3.6.1.2.1.25.1.1

# System Group
sysLocation  <REDACTED>
sysContact  <REDACTED>
sysServices 72
sysName <REDACTED>

## We do not want annoying "Connection from UDP: " messages in syslog.
dontLogTCPWrappersConnects no

# OTHER CONFIGURATION
rouser <REDACTED> authPriv
extend diskstats /bin/cat /proc/diskstats

 

The errors in the LM screenshot from last night was SNMPD reboot, and those from today was from a OS reboot.

Only some of the disks seems to had it index change:

If it helps, here is also the output from: /etc/fstab

LABEL=disk-1    /data/backups/disk-1    xfs    defaults,noatime         0 0
LABEL=disk-2    /data/backups/disk-2    xfs     defaults,noatime        0 0
LABEL=disk-3    /data/backups/disk-3    xfs     defaults,noatime        0 0
LABEL=disk-4    /data/backups/disk-4    xfs     defaults,noatime        0 0
LABEL=disk-5    /data/backups/disk-5    xfs     defaults,noatime        0 0