[PVE-User] Disk recognition order

Emmanuel Kasper e.kasper at proxmox.com
Tue Aug 29 15:04:56 CEST 2017

Hi Uwe

On 08/29/2017 01:44 PM, Uwe Sauter wrote:
> I thought so but when setting up new VMs where the disks don't have partitions yet, there is yet nothing that you could use

Disks too have ids, not only partitions or file systems.

If you use /dev/disk/by-id in your it should be stable between reboots,
as these ids are based on the disk entries of your vm.conf.

on host

qm config 106 | egrep '^scsi[0-9]+'

scsi0: pveintel120:vm-106-disk-1,backup=0,discard=on,iothread=1,size=32G
scsi1: pvesam:vm-106-disk-2,size=16G
scsi12: pvesam:vm-106-disk-3,backup=0,iothread=1,size=16G

on guest

lsscsi --scsi_id | grep 'HARDDISK'

[2:0:0:0]    disk    QEMU     QEMU HARDDISK    2.5+  /dev/sda
[2:0:0:1]    disk    QEMU     QEMU HARDDISK    2.5+  /dev/sdc
[2:0:0:12]   disk    QEMU     QEMU HARDDISK    2.5+  /dev/sdb

you will also find this id in


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