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Site Reliability Engineer
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Disk Io
Site Reliability Engineer
Disk Io questions
7 questions on Disk Io for site reliability engineers, easiest first.
Easy
1
Per-disk busy time and latency
easy
Medium
3
Reading 40% iowait
medium
Which process is hammering the disk
medium
I/O scheduler on NVMe
medium
Hard
3
%util at 100% on an NVMe drive
hard
Writes freeze for seconds at a time
hard
Spotting rare slow disk I/Os
hard
