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Hey Guys
I'm using the df plugin in collectd to monitor disk space on mounted EBS volumes. However, I'm noticing a discrepancy between the disk free space reported by the df -h /mnt/brick149723 command and the values collectd is reporting. Below, I've included my df plugin configuration along with relevant collectd and OS details for further analysis.
df -h /mnt/brick149723
Filesystem Size Used Avail Use% Mounted on
/dev/nvme1n1 100G 34M 100G 1% /mnt/brick149723
When i enable csv plugin to check raw metrics, its reports me 107286245376.000000 that is 107.286245376 GB
cat df-mnt-brick149723/df_complex-free-2025-04-24
epoch,value
1745491661.339,107286245376.000000
1745491721.029,107286245376.000000
1745491781.029,107286245376.000000
1745491841.028,107286245376.000000
1745491901.028,107286245376.000000
1745491961.028,107286245376.000000
1745492021.029,107286245376.000000
1745492081.028,107286245376.000000
<LoadPlugin "df">
Interval 60
</LoadPlugin>
<Plugin "df">
ReportInodes true
FSType "tmpfs"
FSType "devtmpfs"
FSType "fuse.glusterfs"
FSType "squashfs"
MountPoint "/\/tmp\/snap\.rootfs*/"
IgnoreSelected "true"
</Plugin>
collectd version:
collectd 5.12.0.git, http://collectd.org/
by Florian octo Forster <octo@collectd.org>
for contributions see `AUTHORS'
OS details:
Distributor ID: Ubuntu
Description: Ubuntu 16.04.7 LTS
Release: 16.04
Codename: xenial
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