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Disk utilization, low iowait
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Disk utilization, low iowait

I was wondering if disk %util at 99% normal (or at least acceptable) when my %idle averages at 80%? iowait never goes beyond 15%, always at 9%.

main causes are DB reads/writes.

I don't notice any "slowness" at any website's frontend though. This is using md raid1 (HDD).

Comments

  • Could be the raid array is checking itself. On hetzner default installs that happens the first sunday of the month iirc, and can take a few days to finish.

  • Yeah, I can confirm that, it's currently at check = 33.8%. I hope that this is only what's causing it and hopefully finishes in a few days.

  • And it was indeed raid check, made some safe tweaks to speed it up a little. Stats are back to normal now :)

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