Trond,
thank you for your reply. Now to my questions:
On 03/15/12 14:45, Trond Endrestøl wrote:
On Thu, 15 Mar 2012 14:00+0200, George Mamalakis wrote:
"I am experimenting with one installation of FreeBSD-9-STABLE/amd64 on a
VirtualBox that is using gptzfsboot on a raid-1 (mirrored) zfs pool. My
problem is that I need to grow the filesystem size of zfs partitions. I
followed this guide
<http://support.freenas.org/ticket/342>(http://support.freenas.org/ticket/342),
which is for FreeNAS, and encountered a few problems.
# gpart show
=> 34 40959933 ada0 GPT (19G)
34 128 1 freebsd-boot (64k)
162 35651584 2 freebsd-zfs (17G)
35651746 5308221 3 freebsd-swap (2.5G)
=> 34 40959933 ada1 GPT (19G)
34 128 1 freebsd-boot (64k)
162 35651584 2 freebsd-zfs (17G)
35651746 5308221 3 freebsd-swap (2.5G)
There's one mistake I'd point out. Your ZFS partitions are followed by
your swap partitions. It would be a lot easier if the ZFS partitions
were the last one on each drive.
Why is this a mistake? Shouldn't ZFS grow up to the size of its
underlying partition, regardless of its position? Is this restriction
documented somewhere?
Since your are using VirtualBox, I would simply create a new pair of
virtual drives with the desired sizes and attach these to your VM.
Next, create new boot, swap, and ZFS partitions, in this particular
order, on the new drives. Create a ZFS pool using the new ZFS
partitions on the new drives, and transfer the old system from the old
drives to the new drives, using a recursive snapshot and the zfs
send/receive commands. Remember to set the bootfs property on the
newly created ZFS pool prior to reboot.
I understand that there are quite a few alternatives on how I could
migrate my system to one with larger disks, but I hoped that the method
that was supposed to work with zpool and gpart, would have worked indeed
(It was the simple, and required less space than the one that you propose).
Thanks again for your answer!
--
George Mamalakis
IT and Security Officer
Electrical and Computer Engineer (Aristotle Un. of Thessaloniki),
MSc (Imperial College of London)
Department of Electrical and Computer Engineering
Faculty of Engineering
Aristotle University of Thessaloniki
phone number : +30 (2310) 994379
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