Using net-snmp net-snmp-5.3.2.2-14.el5_7.1 RPM on RHEL5 with kernel
2.6.18-194.32.1.el5. On all my hosts, if I use either the
includeAllDisks directive or explicit disk directives, I see (in my
SolarWinds Orion display) all ext3 filesystems that are visible in
/etc/fstab and df command. However, we also use StorNext for large
filesystems of about 50 Terabytes. Though these also appear in df (see
last line in df display below), they do not appear in the Orion display
as disk volumes:
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/mapper/VolGroup00-LogVol00 4062912 1279004 2574196 34% /
/dev/mapper/VolGroup00-LogVol05 4062912 2079824 1773376 54% /home
/dev/mapper/VolGroup00-LogVol04 6094400 988380 4791448 18% /var
/dev/mapper/VolGroup00-LogVol03 4062912 139456 3713744 4% /tmp
/dev/mapper/VolGroup00-LogVol02 8125880 4857248 2849204 64% /usr
/dev/sda3 194449 20005 164404 11% /boot
/dev/mapper/raidvg1-raidlv1 516053432 41418008 448421436 9%
/utilraid
/dev/cvfsctl1_snfs1 49993433088 30353027072 19640406016 61%
/stornext/snfs
This StorNext filesystem is managed by StorNext on the host and
presented as LUNS or volumes from a SAN. The man page for snmpd.conf
says it uses getmntent(3) to see disks, and the man page for that says
it looks at /etc/fstab and /etc/mtab, and this filesystem appears in both:
$ cat /etc/mtab
...
/dev/cvfsctl1_snfs1 /stornext/snfs1 cvfs
rw,cachebufsize=512k,auto_dma_read_length=524289,auto_dma_write_length=524289,sparse=yes
0 0
$ cat /etc/fstab
...
snfs1 /stornext/snfs1 cvfs
rw,cachebufsize=512k,auto_dma_read_length=524289,auto_dma_write_length=524289
0 0
Since the filesystem is so large, I also tried using this line in the
conf file:
disk /stornext/snfs1 1000000
but that did not help. At this point I suspect that it has something to
do with the cvfs filesystem type rather than the size of the filesystem,
but in either case I am stumped on how to get it to work.
Any and all help appreciated.
Thanks.
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