Tejun Heo wrote: > Michael Sedkowski wrote: > > Dnia 07-08-2007, Wt o godzinie 15:56 +0900, Tejun Heo napisał(a): > >> 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age > >> Always - 388 [snip] > On power off, the r/w heads in a disk should be unloaded (parked). This > is usually achieved by either putting the disk into standby/sleep mode > during shutdown. However, all modern disks can automatically unload > their heads when the power is removed abruptly. This is called > emergency unload. Emergency unload does shorten the lifespan of the > disk but you don't have to worry too much about it. Disks are designed > to withstand certain number of emergency unloads.
Out of interest, does Power-Off_Retract_Count attribute only record emergency unloads rather than normal power off by Linux shutdown command? Thanks in advance, Sam - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
