ksqrtr opened a new issue, #12069:
URL: https://github.com/apache/trafficserver/issues/12069
Hello!
We have 4 NVME disks and noticed recently that their usage is some kind of
unbalanced:
```sh
# for nvme in 0 1 2 3; do echo "nvme${nvme}:"; smartctl -x
/dev/nvme"${nvme}"n1 | grep 'Data Units' | sed 's/^/ /' ; done
nvme0:
Data Units Read: 127 608 511 556 [65,3 PB]
Data Units Written: 293 649 334 [150 TB]
nvme1:
Data Units Read: 129 983 891 432 [66,5 PB]
Data Units Written: 384 164 362 [196 TB]
nvme2:
Data Units Read: 562 268 [287 GB]
Data Units Written: 8 382 370 [4,29 TB]
nvme3:
Data Units Read: 551 991 [282 GB]
Data Units Written: 8 387 551 [4,29 TB]
```
What might be the cause of such usage unbalance and is there any options in
ATS we can tune?
Our `storage.config` is pretty straightforward:
```
# cat storage.config
/dev/crypt-nvme-luks-S2UDNX0J602140
/dev/crypt-nvme-luks-S2UDNX0J402480
/dev/crypt-nvme-luks-S2UDNX0J602013
/dev/crypt-nvme-luks-S2UDNX0J602462
```
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