Adding another mirror to existing ZFS-root mirror?
Scott Ballantyne
sdb at ssr.com
Mon Jul 15 17:04:43 UTC 2013
Hi,
I have the current situation:
sdb at gigawattmomma$ zpool status zroot
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
gpt/disk0 ONLINE 0 0 0
gpt/disk1 ONLINE 0 0 0
I boot directly from this.
This article from Oracle:
http://docs.oracle.com/cd/E19253-01/819-5461/gazgw/index.html
implies I can add two more disks to the zroot pool with a
zpool add zroot mirror disk2 disk3 to get
zroot
mirror-0
gpt/disk0
gpt/disk1
mirror-1
gpt/disk2
gpt/disk3
My questions:
1) Will booting still work? What do I need to do to make sure I can
still boot up the system?
Perhaps related:
2) How do I use gpart to prep these disks?
The current mirror has the usual three partitions (freebsd-boot,
freebsd-swap and freebsd-zfs), with boot code installed, obviously. Do
I need to do that with the second mirror, or can I just use the whole
thing for a freebsd-zfs filesystem?
Sorry this was a bit long. Thanks in advance for any help.
Best,
Scott
--
sdb at ssr.com
More information about the freebsd-questions
mailing list