[Gluster-users] Tracking down high writes in GlusterFS volume

Jayme jaymef at gmail.com
Thu Feb 14 18:36:38 UTC 2019

Running an oVirt 4.3 HCI 3-way replica cluster with SSD backed storage.
I've noticed that my SSD writes (smart Total_LBAs_Written) are quite high
on one particular drive.  Specifically I've noticed one volume is much much
higher total bytes written than others (despite using less overall space).
My volume is writing over 1TB of data per day (by my manual calculation,
and with glusterfs profiling) and wearing my SSDs quickly, how can I best
determine which VM or process is at fault here?

There are 5 low use VMs using the volume in question.  I'm attempting to
track iostats on each of the vm's individually but so far I'm not seeing
anything obvious that would account for 1TB of writes per day that the
gluster volume is reporting.
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