How to add tape device a kvm vms in proxmox?

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doknet

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Hola
I try to add the tape a one Proxmox vms


I follow the instructions in "http://pve.proxmox.com/wiki/Tape_Drives"


cat / sys/class/scsi_tape/st0/device/model
Ultrium 4-SCSI


I follow the instructions and add the device in the config vms


cat /etc/qemu-server/125.conf
ostype: L26
memory: 1024
Sockets: 1
name: www20_ubukvm
ide2: local: iso/ubuntu-10.04-server-amd64.iso, media = cdrom
bootdisk: scsi0
scsi0: local: 125/vm-125-disk-1.raw
scsi1: / dev/st0 ########################### add TAPE
vlan0: rtl8139 = 46:86: A4: CD: 16:91
Click to expand...

But it gives error while attempting to start the vms:


125 qm start
qemu-img: Could not open '/ dev/st0': Illegal seek
kvm:-drive file = / dev/st0, if = scsi, index = 1, cache = none: could not open disk image / dev/st0: Illegal seek
start failed: command '/usr/bin/kvm-monitor unix: /var/run/qemu-server/125.mon, server, nowait-vnc unix: / var/run/qemu-server/125.vnc,
Click to expand...
password - pidfile / var/run/qemu-server/125.pid-daemonize-tablet-name usbdevice www20_ubukvm-smp sockets = 1 core = 1-nodefaults-boot menu = on-vga cirrus-tdf-k is-drive file = / var/lib/vz/template/iso/ubuntu-10.04-server-amd64.iso, if = ide, index = 2, media = cdrom-drive file = / var/lib/vz/images/125/vm-125- disk-1.raw, if = scsi, index = 0, cache = none, boot = on-drive file = / dev/st0, if = scsi, index = 1, cache = none-m 1024-netdev type = tap, id = vlan0d0, ifname = tap125i0d0, script = / var / lib / qemu-server / bridge-vlan-device rtl8139, romfile =, mac = 46:86: A4: CD: 16:91, netdev-id = vlan0d0 125 - cpuunits 1000 'failed with exit code 1


Any idea what is wrong in my setup, as I add the device / dev/st0 to the vms?
 
doknet said:
Hola
I try to add the tape a one Proxmox vms


I follow the instructions in "http://pve.proxmox.com/wiki/Tape_Drives"


cat / sys/class/scsi_tape/st0/device/model
Ultrium 4-SCSI


I follow the instructions and add the device in the config vms
...
Click to expand...

no, the wiki page tells you to use sg., but you use st.

here is my config:

Code: 
name: ubuntu-tape
ide2: NFS-ISO:iso/ubuntu-10.04.3-desktop-amd64.iso,media=cdrom
vlan0: virtio=A6:DB:F3:67:60:97
bootdisk: virtio0
virtio0: local:137/vm-137-disk-1.raw
ostype: l26
memory: 1024
sockets: 1
onboot: 0
cores: 2
scsi0: /dev/sg7,cache=writethrough

Inside Ubuntu, I got this:

Code: 
root@ubuntu-tape:~# cat /sys/class/scsi_generic/sg1/device/model
Ultrium 3-SCSI
root@ubuntu-tape:~#
 
Thank you very much for responding


For the device is recognized by Proxmox deb I had to make the libraries
ltt-4.13.0.0-4.x86_64.rpm and then install them.


Promox tape device is recognized as / dev/st0
ls-a / dev / s *
/ dev / sda / dev/sda2 / dev / snapshot / dev/st0 / dev/st0l / dev / stderr / dev / stdout
/ dev/sda1 / dev / sdb / dev / sndstat / dev/st0 / dev/st0m / dev / stdin
Click to expand...

Forgive me if I'm exceeding my question
I have to do something now to be recognized as a device /dev/sg,
What would be the next step in achieving the vms happen to the dipositive tape.


pveversion -v
pve-manager: 1.9-26 (pve-manager/1.9/6567)
running kernel: 2.6.32-6-pve
proxmox-ve-2.6.32: 1.9-50
pve-kernel-2.6.32-6-pve: 2.6.32-50
qemu-server: 1.1-32
pve-firmware: 1.0-14
libpve-storage-perl: 1.0-19
vncterm: 0.9-2
vzctl: 3.0.29-3pve1
vzdump: 1.2-16
vzprocps: 2.0.11-2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.15.0-1
ksm-control-daemon: 1.0-6


On the other hand fails to install packages iscsi-SCST scstadmin
When trying to install it gave me the following error
Starting iSCSI-SCST target service: FATAL: Module iscsi_scst not found.
These packages are needed?




From already thank you very much



tom said:
no, the wiki page tells you to use sg., but you use st.

here is my config:

Code: 
name: ubuntu-tape
ide2: NFS-ISO:iso/ubuntu-10.04.3-desktop-amd64.iso,media=cdrom
vlan0: virtio=A6:DB:F3:67:60:97
bootdisk: virtio0
virtio0: local:137/vm-137-disk-1.raw
ostype: l26
memory: 1024
sockets: 1
onboot: 0
cores: 2
scsi0: /dev/sg7,cache=writethrough

Inside Ubuntu, I got this:

Code: 
root@ubuntu-tape:~# cat /sys/class/scsi_generic/sg1/device/model
Ultrium 3-SCSI
root@ubuntu-tape:~#
Click to expand...
 
what do you get here?

Code: 
ls -al /dev/sg*
 
Thank you for answering, this is what I get when I run ls
vm231:/# ls -al /dev/sg*
ls: cannot access /dev/sg*: No such file or directory
vm231:/# ls -al /dev/s*
brw-rw---- 1 root disk 8, 0 Nov 6 19:22 /dev/sda
brw-rw---- 1 root disk 8, 1 Nov 6 19:22 /dev/sda1
brw-rw---- 1 root disk 8, 2 Nov 6 19:22 /dev/sda2
brw-rw---- 1 root disk 8, 16 Nov 12 17:14 /dev/sdb
crw-rw---- 1 root root 10, 231 Nov 6 19:22 /dev/snapshot
lrwxrwxrwx 1 root root 24 Nov 6 19:22 /dev/sndstat -> /proc/asound/oss/sndstat
crw-rw---- 1 root tape 9, 0 Nov 6 19:22 /dev/st0
crw-rw---- 1 root tape 9, 96 Nov 6 19:22 /dev/st0a
crw-rw---- 1 root tape 9, 32 Nov 6 19:22 /dev/st0l
crw-rw---- 1 root tape 9, 64 Nov 6 19:22 /dev/st0m
lrwxrwxrwx 1 root root 15 Nov 6 19:22 /dev/stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 Nov 6 19:22 /dev/stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 Nov 6 19:22 /dev/stdout -> /proc/self/fd/1
Click to expand...




tom said:
what do you get here?

Code: 
ls -al /dev/sg*
Click to expand...
 
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