Tejun Heo pisze:

Hmmmm... Does Power-Off_Retract_Count increase after suspend/resume cycle?

No.

Before:

rutek:/home/maciek# smartctl -A -d ata /dev/sda  | grep
Power-Off_Retract_Count
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always
      -       66


Tested:

2.6.22.1 OK (double spin down of disk issue).

2.6.23-rc2 with patches [1] (prevent double spin down while suspend to
disk), also was tested ealier [2] OK

[1] http://www.ussg.iu.edu/hypermail/linux/kernel/0708.0/2655.html
[2] http://www.ussg.iu.edu/hypermail/linux/kernel/0708.0/2784.html


After:
rutek:/home/maciek# smartctl -A -d ata /dev/sda  | grep
Power-Off_Retract_Count
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always
      -       66


-- 
Maciej Rutecki
http://www.maciek.unixy.pl