John Robinson wrote:
On 01/11/2012 15:13, Miles Fidelman wrote:
Phil Turmel wrote:
I strongly encourage you to run "smartctl -l scterc /dev/sdX" for each
of your drives. For any drive that warns that it doesn't support SCT
ERC, set the controller device timeout to 180 like so:
echo 180 >/sys/block/sdX/device/timeout
If the report says read or write ERC is disabled, run "smartctl -l
scterc,70,70 /dev/sdX" to set it to 7.0 seconds.
You then set up a boot-time script to do these adjustments at every
restart.
Sounds like a very bad idea if your drive is part of a RAID array.
Either of these - the scterc if you can, the device timeout if you
can't - are an excellent idea if you are using a desktop drive as part
of a md RAID array. Why do you think otherwise?
If I'm seeing that kind of device timeout, I want it out of my array,
and I want an alert telling me to replace it. Otherwise my server's
performance goes to s*&t.
--
In theory, there is no difference between theory and practice.
In practice, there is. .... Yogi Berra
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
