# ls -la /dev/dm* brw-rw---- 1 root disk 254, 0 Mar 29 08:10 /dev/dm-0 brw-rw---- 1 root disk 254, 1 Mar 29 08:10 /dev/dm-1 brw-rw---- 1 root disk 254, 2 Mar 29 08:10 /dev/dm-2 brw-rw---- 1 root disk 254, 3 Mar 29 08:10 /dev/dm-3 brw-rw---- 1 root disk 254, 4 Jun 11 22:12 /dev/dm-4 brw-rw---- 1 root disk 254, 5 Jun 11 22:12 /dev/dm-5 brw-rw---- 1 root disk 254, 6 Jun 11 22:12 /dev/dm-6 Il giorno 14 giugno 2012 13:49, Gianni Caldonazzi < gianni.caldonazzi@xxxxxxxxx> ha scritto: > Strada rapida: > > ls -al /dev/disk/by-id/ > > Visto che effettivamente sono pochi dischi.. # ls -la /dev/disk/by-id/ total 0 drwxr-xr-x 2 root root 540 Jun 11 22:12 . drwxr-xr-x 5 root root 100 Mar 29 08:10 .. lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-name-fileserver-backup1 -> ../../dm-3 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-name-pve-data -> ../../dm-2 lrwxrwxrwx 1 root root 10 Jun 11 22:12 dm-name-pve-data-real -> ../../dm-5 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-name-pve-root -> ../../dm-1 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-name-pve-swap -> ../../dm-0 lrwxrwxrwx 1 root root 10 Jun 11 22:12 dm-name-pve-vzsnap--px1--0 -> ../../dm-4 lrwxrwxrwx 1 root root 10 Jun 11 22:12 dm-name-pve-vzsnap--px1--0-cow -> ../../dm-6 lrwxrwxrwx 1 root root 10 Jun 11 22:12 dm-uuid-LVM-AXHmW86yg0TePA47NHKTgspsJwcD9VCi7ObcTIZ0ol3T2oy1t10Sah7jLjVp0qY7 -> ../../dm-4 lrwxrwxrwx 1 root root 10 Jun 11 22:12 dm-uuid-LVM-AXHmW86yg0TePA47NHKTgspsJwcD9VCi7ObcTIZ0ol3T2oy1t10Sah7jLjVp0qY7-cow -> ../../dm-6 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-uuid-LVM-AXHmW86yg0TePA47NHKTgspsJwcD9VCiTOibnl0rmrJDxoH2Cx0wFhpK2n2VaGsT -> ../../dm-0 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-uuid-LVM-AXHmW86yg0TePA47NHKTgspsJwcD9VCiU2Tm4mypwAq3QE6BKYNWn3OWSlG2LGWZ -> ../../dm-1 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-uuid-LVM-AXHmW86yg0TePA47NHKTgspsJwcD9VCijEgRCIgaRd9G38BEMnHKgRzjnVWq5D4P -> ../../dm-2 lrwxrwxrwx 1 root root 10 Jun 11 22:12 dm-uuid-LVM-AXHmW86yg0TePA47NHKTgspsJwcD9VCijEgRCIgaRd9G38BEMnHKgRzjnVWq5D4P-real -> ../../dm-5 lrwxrwxrwx 1 root root 10 Mar 29 08:10 dm-uuid-LVM-byXBUe92TeNeYpVoNegZPP1nv0Wc5Qlh47Wb2YPr9LQW18mT1WXFPxWDWzTLL5AF -> ../../dm-3 [ho tolto alcune cose superflue] e # ls -la /dev/mapper/ crw-rw---- 1 root root 10, 62 Mar 29 08:10 control brw-rw---- 1 root disk 254, 3 Mar 29 08:10 fileserver-backup1 brw-rw---- 1 root disk 254, 2 Mar 29 08:10 pve-data brw-rw---- 1 root disk 254, 5 Jun 11 22:12 pve-data-real brw-rw---- 1 root disk 254, 1 Mar 29 08:10 pve-root brw-rw---- 1 root disk 254, 0 Mar 29 08:10 pve-swap brw-rw---- 1 root disk 254, 4 Jun 11 22:12 pve-vzsnap--px1--0 brw-rw---- 1 root disk 254, 6 Jun 11 22:12 pve-vzsnap--px1--0-cow seguendo i consigli di Roberto ho provato a rimuovere l'elemento # dmsetup remove /dev/mapper/pve-vzsnap--px1--0 device-mapper: remove ioctl failed: Device or resource busy Command failed senza risultato. Con il comando mount ho visto che è ancora montata : /dev/mapper/pve-vzsnap--px1--0 on /mnt/vzsnap0 type ext3 (rw) con ps ax abbiamo notato che erano attivi ancora i processi del vzdump. ps ax | grep snap 31034 ? Ss 0:00 /usr/bin/perl -w /usr/sbin/vzdump --quiet --node 1 --snapshot --storage Backup1 --maxfiles 20 --mailto XXXXXXX Quindi un bel kill 31034 e poi un killall vmtar (che anch'esso attivo) poi umount /dev/mapper/pve-vzsnap--px1--0 e infine lvremove pve/vzsnap-px1-0 /dev/dm-4: read failed after 0 of 4096 at 0: Input/output error Do you really want to remove active logical volume "vzsnap-px1-0"? [y/n]: y Vediamo se passa la notte. Un grazie a Roberto che mi ha dato supporto on-line A.