Hello Everybody

I have two raid 1 arrays on a Dell PowerEdge 2950,
1) 2*500 Go
2) 2*750 Go

I need to use LVM, to create a LV on the second raid array, in which i
will afterwards incorporate the first raid array. I have the latest
debian distro installed, with kernel updates, and LVM2 is installed. For
"political" (indeed) reasons, we can't use the raid 5......


and there is a partition using the whole second "disk" (ie raid array),
it is sdb 1
I encounter my first problem when typing pvcreate /dev/sdb1. ( the
partition of the second raid array) I get the message :

device /dev/sdb1 not found or ignored by filtering
I checked /etc/lvm/lvm.conf, and I commented out the line about the filter.
After a reboot, no more luck. I tried to circumvent the problem by
booting with an ubuntu CD, but i get the same error message.
Could anybody tip me about what's wrong and more importantly suggest
solutions to me ? :-)


Thanks a lot in advance.

--
Gilles Guiot
Responsable exploitation informatique
Tél. : 01 53 23 02 20
gilles.guiot@saros.fr


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On Fri, May 9, 2008 at 11:18 AM, Gilles Guiot <gilles.guiot@saros.fr> wrote:

Hello Everybody

...

I encounter my first problem when typing pvcreate /dev/sdb1. ( the partition of the second raid array) I get the message :

device /dev/sdb1 not found or ignored by filteringHi,
*
Did you choose LVM as /dev/sdb1 type ?
You could use the whole disk with pvcreate /dev/sdb (sdb without partition table).