On Thu, 2011-01-06 at 08:58 +0100, Jan-Frode Myklebust wrote: > On Wed, Jan 05, 2011 at 08:51:17AM -0800, MJang wrote: > > > > Just noticed that since I installed RHEL 6 back in Nov, my laptop hard > > disk (from a new T410) has gone through about 200,000 cycles, as > > confirmed by the smartctl -a /dev/sda command. (If I remember right, > > hard drives expire at around 600,000 cycles.) > > Just for datapoint.. my T400, installed with RHEL6 october 31. (was > running fedora-13 before that, and RHEL5 before that), has only gone > trough 290 power cycles: > > 9 Power_On_Hours 0x0032 097 097 000 Old_age Always > - 12661 > > 12 Power_Cycle_Count 0x0032 099 099 000 Old_age Always > - 290 > > I have disabled the "spin down hard disk" option in the power > management preferences (it's an SSD, so there's nothing spinning > anyway).
Appreciate the datapoint. FWIW, I've reported this as a bug at https://bugzilla.redhat.com/show_bug.cgi?id=667485 I gather opinions vary on whether one of the following commands is the better way to prevent the premature aging problem: hdparm -B 254 /dev/sda hdparm -B 200 /dev/sda I've since had to replace the hard drive, as it was spouting out lots of read error messages -- the damage was focused on the top-level root directory partition where RHEL 6 was installed. (the other partitions on my drive were fine) Thanks, Mike _______________________________________________ rhelv6-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv6-list
