share hostfolder to kvm guest

[fpausp]

Hi, today I installed my first proxmox server and a few linux fileserver guests. What I additionaly like to do is to give a kvm-guest a folder (/test) located on the proxmox-server.

I read this:
http://pve.proxmox.com/wiki/FAQ#How_can_I_assign_a_physical_disk_to_a_VM.3F
but I dont understand the synthax.

Can anyone give me a bit more Info please ?

 

[jcanodk]

Why not export an nfs share from your proxmox server and mount it on the different kvm's?

...and don't even think about assigning the same physical to different os'es at the same time!!!

 

[fpausp]

Ok, I changed the way to do it. I have now all my data into the guests and dont need to share a folder on the host. All is working fine but when I backup a guest with all my data and somthing went wrong I cannot reach my data because they are in the raw-image. How can I reach my data on the raw-image ?

The Fileserver looks like:

[root@sme7kvm ~]# fdisk -lu

Platte /dev/sda: 536.8 GByte, 536870912000 Byte
255 Köpfe, 63 Sektoren/Spuren, 65270 Zylinder, total 1048576000 sectors
Einheiten = Sektoren von 1 * 512 = 512 Bytes

Gerät Boot Start End Blocks Id System
/dev/sda1 * 63 208844 104391 fd Linux raid autodetect
/dev/sda2 208845 1048562549 524176852+ fd Linux raid autodetect

Platte /dev/md1: 106 MByte, 106823680 Byte
2 Köpfe, 4 Sektoren/Spuren, 26080 Zylinder, total 208640 sectors
Einheiten = Sektoren von 1 * 512 = 512 Bytes

Festplatte /dev/md1 enthält keine gültige Partitionstabelle

Platte /dev/md2: 536.7 GByte, 536757010432 Byte
2 Köpfe, 4 Sektoren/Spuren, 131044192 Zylinder, total 1048353536 sectors
Einheiten = Sektoren von 1 * 512 = 512 Bytes

Festplatte /dev/md2 enthält keine gültige Partitionstabelle

Platte /dev/dm-0: 532.5 GByte, 532508835840 Byte
2 Köpfe, 4 Sektoren/Spuren, 130007040 Zylinder, total 1040056320 sectors
Einheiten = Sektoren von 1 * 512 = 512 Bytes

Festplatte /dev/dm-0 enthält keine gültige Partitionstabelle

Platte /dev/dm-1: 4227 MByte, 4227858432 Byte
2 Köpfe, 4 Sektoren/Spuren, 1032192 Zylinder, total 8257536 sectors
Einheiten = Sektoren von 1 * 512 = 512 Bytes

Festplatte /dev/dm-1 enthält keine gültige Partitionstabelle

 

[fpausp]

Hi, I am sorry for the confusion, I finally solved my problem in that way:

I added just that line to my vmid.conf

scsi1: /dev/sdc

Now the guest is able to reach a physical disk and backup data on it. The files are easy readable on every (ext3) system.

Thanks for your help

Best

 

[chrisalavoine]

Not sure if you are using backups on this VM, but beware!

If you have an extra disk added in this way then the backup will attempt to make a copy of all disks detailed in the vmid.conf file.

I found this out to my dismay when a backup attempted to make a copy of a 1TB iSCSI disk I had added.

You will need to comment out the disks you do not want included in the backup. Only after you have started the VM, of course.

This can get annoying if you restart the VM a lot... hopefully this will be address in 2.0?

 

[fpausp]

Thanks for your Info.

Best