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Hello.
Would you so kind to help me with my problem concerning
iostat -x 1 reporting 100% utilization of my RAID10(10 SSD drives on 1.9 Tb) -
XFS.
My host is
Ubuntu
20.04.2 LTS
RAID controller
PERC H730P Mini
Soft
PostgreSQL 11
RAID10 R/W operations:
write(avg) 1015 IOPS
reads(avg) 52 IOPS
await(avg) 0.3582 ms
I'm get
100% utilization
0,1 iowait
Question:
Why 100% utilization and at the same time 0,1 iowait ?
PS
On Ubuntu 18 at the same hardware configuration very low utilization.
RAID controller
PERC H730P Mini
RAID10(8 SSD drives on 1.9 Tb) - XFS.
Soft
PostgreSQL 11
RAID10 R/W operations:
write(avg) 1120 IOPS
reads(avg) 40 IOPS
await(avg) 0.1208 ms
Best regards.
** Affects: ubuntu
Importance: Undecided
Status: New
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iostat -x 1 reporting 100% utilization
https://bugs.launchpad.net/bugs/1923621
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