zfs discuss - Apr 2010 - Adding a higher level partition to ZFS pool

Hi all,
I would like to add a new partition to my ZFS pool but it looks like
it''s more stricky than expected.

The layout of my disk is the following:
- first partition for Windows. I want to keep it. (no formatting !)
- second partition for OpenSolaris.This is where I have all the Solaris slices
(c0d0s0 etc). I have a single ZFS pool. OpenSolaris boots on ZFS.
- third partition: a FAT partition I want to keep (no formatting !)
- fourth partition: I want to add this partition to my ZFS pool (or another pool
?). I don''t care if information on that partition is lost, I can format
it if necessary.
zpool add c0d0p0:2 ? Hmm...

How can I do that ? When I searched on the web it seemed nearwhat impossible,
but it''s so basic, I''m sure there''s a solution...
Thanks
-- 
This message posted from opensolaris.org

Up :)

I still haven''t found the way to do that. Is it impossible because this
partition is outside my Solaris slices? Isn''t there a way to use the
space however ?

Regards

Axelle.
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This message posted from opensolaris.org

Axelle Apvrille wrote:
> Hi all,
> I would like to add a new partition to my ZFS pool but it looks like
it''s more stricky than expected.
>
> The layout of my disk is the following:
> - first partition for Windows. I want to keep it. (no formatting !)
> - second partition for OpenSolaris.This is where I have all the Solaris
slices (c0d0s0 etc). I have a single ZFS pool. OpenSolaris boots on ZFS.
> - third partition: a FAT partition I want to keep (no formatting !)
> - fourth partition: I want to add this partition to my ZFS pool (or another
pool ?). I don''t care if information on that partition is lost, I can
format it if necessary.
> zpool add c0d0p0:2 ? Hmm...
>   
You cannot add it to the root pool, as the root pool cannot be a RAID0.

You can make another pool from it...

Ideally, set the FDISK partition type to something that none of the
OS''s
on the system will know anything about. (It doesn''t matter what it is 
from the zfs point of view, but you don''t want any of the OS''s
thinking
it''s something they believe they know how to use.)

zpool create tank c0d0p4 (for the 4th FDISK primary partition).

Note that two zpools on the same disk may give you poor performance if 
you are accessing both at the same time, as you are forcing head seeking 
between them.

-- 
Andrew Gabriel

ok - it makes sense.
Thanks !
Axelle.
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This message posted from opensolaris.org