[ltp] HDAPS support for non-Hitachi drives?

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Thu, 27 Jul 2006 02:14:45 -0300


On Wed, 26 Jul 2006, Paul RIVIER wrote:
> I do not use hdaps because I heard from the mouth of an IBM engineer 
> that repeated head-parking leads to HDD unreliability, neither I use the 
> 3D because I do not need it and ati 3D support was really bad in the past.

Given the extremely crazy ammount of headparking ThinkPad BIOS tells the HDs
to do, it of course causes "HDD unreliability". 

HDAPS-initiated parkings are but a drop in the ocean when compared to the
ammount of HD APM-initiated parkings in a normal workload (i.e one where the
disk is constantly idle for more than 4s and HDAPS is not firing a head park
at every second :-p ).

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh