Re: Crete Volgroup from anaconda ks using the whole disk

[Francisco Javier Lloreda Sanchez <flloreda@xxxxxxxxxx>]

Hi David,
The reason behind this question is I want to install a Virtual Server. This server will have 2 disks, the first one for /boot and mapped to a lv in the physical server, the second disk will be for system and /home and will be mapped to a lv in the physical server also.
I know /home will grow quickly due to the use of the server. So if I create the PV and VG on a partition (vdb1) when I need extend the disk I need to add new partitions, in a few extends I will have many partitions on the disk or many new disks in the virtual server. In the other hand If I create the PV and VG on the device (vdb) I just need to extend the LV in the physical server, ensure the virtual server recognizes the new space on the disk and pvextend, vgextend and lvextend.

Am I wrong ?

Thanks for your time :)

--
Francisco Javier Lloreda
Red Hat Consultant
( RHCA , RHCDS , RHCVA ) #110-651-718
flloreda@xxxxxxxxxx
Mobile: 0034 600 48 39 73

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El 18/01/13 23:59, David Rock escribió:

* Francisco Javier Lloreda Sanchez <flloreda@xxxxxxxxxx> [2013-01-18 19:03]:

Thanks MAtthew for your answer but this is exactly what I'm triying to 
avoid... :)

I would like to have the equivalent to :
     pvcreate /dev/vdb
     vgcreate test /dev/vdb
     lvcreate -n lv_test -L 10G test

So at the end of the installation I would have a vg over no partition 
(not the whole disk but over the disk device).

One question I have is: Besides the academic exercise of being able to
do it, is there a requirement to do it?  I understand wanting to know if
something is possible just for the sake of knowing, but do you have a
functional reason that you _need_ to write to the disk rather than a
partition?

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