Hi, * Eneko Lacunza via pve-user <[email protected]> [201110 09:03]: > I have hit a simple problem. Let be a VM with 3 disks, with .conf extract: > > scsi0: ceph-proxmox:vm-100-disk-1,cache=writeback,size=6G > scsi1: ceph-proxmox:vm-100-disk-0,cache=writeback,size=400G > scsi2: ceph-proxmox:vm-100-disk-3,cache=writeback,size=400G > > We have two virtual disks with identical size (400G). > > How can I be sure what device on Linux guest is each?
You can also check - and use in /etc/fstab - the /dev/disk/by-* symlinks. In a VM, maybe the most relevant "id" is the actual path. /dev/disk/by-path has these links (in my case): pci-0000:06:05.0-scsi-0:0:0:0 -> sda pci-0000:00:05.0-scsi-0:0:0:1 -> sdb If your sdb/sdc are swapped, the SCSI IDs in the path should still be correct. If you don't like the pci path in there, /dev/disk/by-id has: scsi-0QEMU_QEMU_HARDDISK_drive-scsi0 -> sda scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 -> sdb But you'll have to check if those match with the VM settings (I'd expect them to). As you've discovered and others have said, lsscsi, or lsblk -S can be used to see the SCSI IDs, too. The same info is also availabe from udevadm: udevadm info /dev/sda If you dig around in /sys, it's also there ;-) HTH, Chris -- Chris Hofstaedtler / Deduktiva GmbH (FN 418592 b, HG Wien) www.deduktiva.com / +43 1 353 1707 _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
