On Fri, Feb 15, 2019 at 12:30 AM Jayme <jaymef@xxxxxxxxx> wrote:
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).
Writes are higher on one particular volume? Or did one brick witness more writes than its two replicas within the same volume? Could you share the volume info output of the affected volume plus the name of the affected brick if at all the issue is with one single brick?
Also, did you check if the volume was undergoing any heals (`gluster volume heal <VOLNAME> info`)?
-Krutika
_______________________________________________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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