I have a Lenovo W530 running Arch with kernel 3.79 (for bumblebee) and laptop-mode is configured properly and running. It has one SSD (sdb) and one harddisk (sdb). The sdb disk has two lvm-volumes: one is storage and one is swap.
The problem is that the harddisk keeps getting polled and lsof outputs nothing regarding the lvm volumes when these are mounted. When I mount sdb2 (a NTFS partition) the hd spins down correctly; It seems to have something to do with LVM.
All worked fine (i.e. the harddisk spinned down properly) just before I removed two lvm volumes and replaced them with a single volume (lv_storage). I removed them using lvremove and added one using lvcreate.
The harddisk-activity-indication light blinks every second or so. Hdparm can spindown the harddisk (until it gets polled again).
EDIT: problem seems to be the jdb2 journaling service. IOtop reveals that the process ([jdb2/dm-1-8]) is keeping the hd awake. However I only have dm-0(lv_swap) and dm-1 (lv_filestorage) and there are no files residing on the lv_storage volume.
Data:
lsblck ->
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 59.6G 0 disk
|-sda1 8:1 0 300M 0 part
|-sda2 8:2 0 100M 0 part /boot/efi
|-sda3 8:3 0 128M 0 part
|-sda4 8:4 0 28.8G 0 part
`-sda5 8:5 0 30.3G 0 part /
sdb 8:16 0 465.8G 0 disk
|-sdb1 8:17 0 195.3G 0 part
| |-VolGroup01-lv_swap (dm-0) 254:0 0 8G 0 lvm [SWAP]
| |-VolGroup01-lv_storage (dm-1) 254:1 0 150G 0 lvm
| `-VolGroup01-lv_test (dm-2) 254:2 0 1G 0 lvm
`-sdb2 8:18 0 270.5G 0 part
uname -a ->
Linux w530 3.7.9-2-ARCH #1 SMP PREEMPT Mon Feb 25 12:04:25 CET 2013 x86_64 GNU/Linux
lvdisplay ->
--- Logical volume ---
LV Path /dev/VolGroup01/lv_swap
LV Name lv_swap
VG Name VolGroup01
LV UUID HoElDQ-OZ3z-XkGX-dBE1-qVnD-NEgB-4G7D7S
LV Write Access read/write
LV Creation host, time archiso, 2013-02-27 20:17:33 +0000
LV Status available
# open 2
LV Size 8.00 GiB
Current LE 2048
Segments 1
Allocation contiguous
Read ahead sectors auto
- currently set to 256
Block device 254:0
--- Logical volume ---
LV Path /dev/VolGroup01/lv_storage
LV Name lv_storage
VG Name VolGroup01
LV UUID iIvwkz-1bph-pCHs-8QOw-F0J9-0RRA-ea783w
LV Write Access read/write
LV Creation host, time archiso, 2013-03-06 03:10:55 +0000
LV Status available
# open 0
LV Size 150.00 GiB
Current LE 38400
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 254:1
/etc/fstab ->
# /dev/mapper/VolGroup01-lv_storage
UUID=1b01a1dd-6ea9-484c-933c-e581767ad4b9 /mnt/storage ext4
rw,relatime,data=ordered 0 2
# /dev/mapper/VolGroup01-lv_swap
UUID=66afafb1-5f90-41c0-967e-343a8d269581 none swap
defaults 0 0
