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vote
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GNU/Linux, IO performance problems
I have some problems with my system performance. As I was adviced here, I used sar:
$sar -u 5
and found out that the problems are caused by a low HDD performance, as I supposed (high %iowait).
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User mounted secondary drive as /var
I have a drive that someone else mounted using
mount /dev/sdc1 /var
At some point they complained that all the data was missing
Now:
mount /dev/sdc1 /media/testdrive
df -h shows 130GB used
du -h ...