Hello all,

Running a box with 2x1TB software raid disks.
A while back I read up about disk write caching and it's pros/cons.

I then decided to disable it on my box.
Edited /etc/conf.d/hdparm and added -W0 for sata_all_args.
And added it to the default runlevel.

It works, on bootup it turns off write caching.
But a while later when KDE is up and running and I check with hdparm -W
/dev/sd? write caching is on again.

Now, I have two questions,
How can I find out what turned it back on, and how can I prevent it?

Is it necessary/prudent to turn it off in the first place?

At the moment I run a cron job that checks every 10 minutes and turns it
off if it is enabled. But that feels like a somewhat ugly solution...


Kind regards,
Coert Waagmeester

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