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Forum Discussion
Write-cache problems
Is there a way to disable disk write-cache permanently until such time that I might want to turn it back on again. I need to do this manually via some configuration file or command line utility and N...
I discovered that the following truns write cache-off:
# hdparm -W0 /dev/sdd
/dev/sdd:
setting drive write-caching to 0 (off)
write-caching = 0 (off)
# hdparm -W0 /dev/sde
/dev/sde:
setting drive write-caching to 0 (off)
write-caching = 0 (off)
Use -W0 turn it off and -W1 to turn it on. (see /frontview/bin/diskcache for more detail).
But I am trying to understand /etc/default/hdparm and /etc/hdparm.conf
I think the answer lies with these files.
# hdparm -W0 /dev/sdd
/dev/sdd:
setting drive write-caching to 0 (off)
write-caching = 0 (off)
# hdparm -W0 /dev/sde
/dev/sde:
setting drive write-caching to 0 (off)
write-caching = 0 (off)
Use -W0 turn it off and -W1 to turn it on. (see /frontview/bin/diskcache for more detail).
But I am trying to understand /etc/default/hdparm and /etc/hdparm.conf
I think the answer lies with these files.
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