Povolíme zápis aktivit do logu:
echo 1 > /proc/sys/vm/block_dump
HDD můžeme uspíme
hd-idle -t sda
Jak zjistíme stav HDD?
hdparm -C /dev/sda dmesg:
[138294.401853] kworker/u4:2(31708): WRITE block 367032 on
mmcblk0p1 (8 sectors)
[138294.405752]
kworker/u4:2(31708): WRITE block 367096 on mmcblk0p1 (8 sectors)
[138294.405767]
kworker/u4:2(31708): WRITE block 367288 on mmcblk0p1 (8 sectors)
[138294.405774]
kworker/u4:2(31708): WRITE block 367328 on mmcblk0p1 (8 sectors)
[138294.456742]
btrfs-transacti(962): WRITE block 128 on mmcblk0p1 (8 sectors)
[138294.456783]
btrfs-transacti(962): WRITE block 131072 on mmcblk0p1 (8 sectors)
[138294.682711]
jbd2/sda3-8(2640): WRITE block 3506742232 on sda3 (8 sectors)
[138294.682732]
jbd2/sda3-8(2640): WRITE block 3506742240 on sda3 (8 sectors)
[138294.682738]
jbd2/sda3-8(2640): WRITE block 3506742248 on sda3 (8 sectors)
[138294.682742]
jbd2/sda3-8(2640): WRITE block 3506742256 on sda3 (8 sectors)
[138294.682746]
jbd2/sda3-8(2640): WRITE block 3506742264 on sda3 (8 sectors)
[138294.683142]
jbd2/sda3-8(2640): WRITE block 3506742272 on sda3 (8 sectors)
[138299.492207]
kworker/u4:2(31708): WRITE block 2048 on sda3 (8 sectors)
[138299.492228]
kworker/u4:2(31708): WRITE block 4232052992 on sda3 (8 sectors)
[138299.492238]
kworker/u4:2(31708): WRITE block 4286578752 on sda3 (8 sectors)
[138299.492246]
kworker/u4:2(31708): WRITE block 4288131208 on sda3 (8 sectors)
[138319.640795]
kworker/u4:0(12342): WRITE block 4288837800 on sda3 (8 sectors)
[138319.641100]
kworker/u4:0(12342): WRITE block 4288837736 on sda3 (8 sectors)
[138324.280643]
jbd2/sda3-8(2640): WRITE block 3506742280 on sda3 (8 sectors)
[138324.280662] jbd2/sda3-8(2640):
WRITE block 3506742288 on sda3 (8 sectors)
[138324.280668]
jbd2/sda3-8(2640): WRITE block 3506742296 on sda3 (8 sectors)
[138324.280672]
jbd2/sda3-8(2640): WRITE block 3506742304 on sda3 (8 sectors)
[138324.280676]
jbd2/sda3-8(2640): WRITE block 3506742312 on sda3 (8 sectors)
[138324.280680]
jbd2/sda3-8(2640): WRITE block 3506742320 on sda3 (8 sectors)
[138324.281064]
jbd2/sda3-8(2640): WRITE block 3506742328 on sda3 (8 sectors)
