On Tue, 23 Mar 2010 Michiel Boland <[email protected]> wrote
>Hi. I have one of those new green WD HDs with Intellipark, that is, they
>like to park their heads every 8 seconds. As a result the load cycle count
>grows at an alarming rate. (If I understand correctly this number should not
>exceed about 300k or so.)
>
>Is there any way to turn off or increase the 8-second timeout? Or do I have
>to bin the disk and use something better?
I have some older GP drives which do not seem to ever park their heads. The
newer GP drives I have behave as you described.
I have had success either turning off the head parking or greatly reducing it
by doing 'hdparm -S 0 -B 254 <device>'. Either '-B 254' or -B 255' depending
on the drive. I use these drives in a home file server, though, so I/O
to/from the drives is either non-existant most of the time (heads stay
parked) or there is continuous I/O (rdiff backups, etc.; heads stay
unparked).
-akm
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hardware
To unsubscribe, send any mail to "[email protected]"
