Mounted ACFS file system not recognised by snmp
Environment
- Red Hat Enterprise Linux (RHEL) 7.4
- net-snmp-5.7.2-28.el7_4.1
Issue
The current version of net-snmp
in RHEL-7.4
(net-snmp-5.7.2
) does not provide support for ASM Cluster File System
(ACFS
) and we cannot monitor e.g. disk usage for mounts of this type.
For example disk /dev/asm/app_vg01-420
is omitted in snmpwalk
output:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/root 7,1G 4,9G 2,3G 69% /
/dev/asm/app_vg01 100G 61G 40G 61% /u
$ snmpwalk -v1 -c public localhost UCD-SNMP-MIB::dskPercent
UCD-SNMP-MIB::dskPercent.1 = INTEGER: 69
We are expecting line
UCD-SNMP-MIB::dskPercent.2 = INTEGER: 61
to be displayed as well.
Resolution
Update to net-snmp-5.7.2-33.el7_5.2
shipped with Advisory RHBA-2018:1382 or newer.
Root Cause
The net-snmp
package did not provide support for Automatic Storage Management Cluster File System
(ACFS
). The upstream implementation of ACFS
support has been backported and released with net-snmp-5.7.2-33.el7_5.2
and newer.
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