I got a Ubuntu (hardy) system used for virtualization using KVM. Each guest got it's own qcow2 file used as disk. Guests are running Ubuntu (hardy). What would a good backup strategy be for such a setup? I would prefer not to shutdown the guests during backup.
I use a couple of ASUS WL-500GP running OpenWrt Kamikaze 8.09.1 (2.4 kernel) as small office gateways and firewall. Now I would like to attach USB disks to cache local backup-data during office-hours and send it over the net during night.
The problem is that the attached disk never spins down and gets hot and noisy. Do anyone know of any "OK" solution to spin down idle USB attached disks in OpenWrt?
My disk device is: /dev/scsi/host0/bus0/target0/lun0/disc
I have tried hd-idle but no go, even tried to create a /dev/sda with mknod:
root@TheBrick:~# hd-idle -t sda -i 10
ioctl on sda:: Invalid argument
root@TheBrick:~# hd-idle -t scsi/host0/bus0/target0/lun0/disc -i 10
ioctl on scsi/host0/bus0/target0/lun0/disc:: Invalid argument
Also tried "scsi-spin" but found nothing compiled for Kamikaze 8.09.1