I am looking for a way to monitor disk activity while I access an SSD via SPDK.
For example, any disk activity does not appear in vmstat or iostat
while I am running SPDK perf tool.
I understand it is expected, but I wonder if there is any tool
available to replace iostat for SPDK.
Or is there any SPDK API method that helps probing disk activities?
What is the correct way of analyzing spdk error message (as below which was
encountered against a spdk writev cmd) to quickly know what went wrong?
WRITE sqid:2 cid:125 nsid:1 lba:4194304 len:16
WRITE FAULTS (02/80) sqid:2 cid:125 cdw0:0 sqhd:002a p:1 m:1 dnr:0