iscsi oder lvm formatieren?

[copymaster]

Hi.
I have a dumb question:
What about formating a iscsi or LVM volume? Is there no need to do this?

I i add storage (iscsi) i can just use it as base of lvm and then create a lvm-group on top of it. But what a about a filesystem? does proxmos take care of this?

I wonder because i have an ISCI Volume as base for a LVM Group and the Log shows a line like:

kernel: sdb: unknown partition table

sdb seems to be the ISCSI LUN....

I wonder because if i use cfdisk /dev/sdb the prog shows the whole space as free space... But i have several VM's residing on that LVM Group.

 

[udo]

Hi.
I have a dumb question:
What about formating a iscsi or LVM volume? Is there no need to do this?

I i add storage (iscsi) i can just use it as base of lvm and then create a lvm-group on top of it. But what a about a filesystem? does proxmos take care of this?

I wonder because i have an ISCI Volume as base for a LVM Group and the Log shows a line like:

kernel: sdb: unknown partition table

sdb seems to be the ISCSI LUN....

I wonder because if i use cfdisk /dev/sdb the prog shows the whole space as free space... But i have several VM's residing on that LVM Group.

Hi,
lvm is not a filesystem. A filesystem is only inside the lv - this make your vm during the installation with format, or you with copy one existing volume with dd.
The reason of "unknown partitiontable" is, that the whole device is used for lvm (pvcreate /dev/sdb) and sdb don't have a partitiontable. You can use a partitiontable (typ 8e) but this is only for orientation (pvcreate /dev/sdb1), or if you don't whant the whole space for one VG.
Think about aligned partition if you use a partitiontable.

Hope it's help.

Udo