On Wed, Apr 18, 2012 at 01:01:14PM +1000, Russell Coker wrote:
Now I'm considering the case of a reasonable size ZFS server. Would it work to have an 8-disk mirror for the root filesystem?
i don't boot off ZFS(*), but IIRC from what I've read on the zfsonlinux list and github issues it: a) depends on your version of grub. It has to support zfs. b) can't boot from a compressed filesystem. if you enable compression (a good idea in most cases, IMO), then that means you have to create a separate /boot fs and turn off compression. something like: zfs create rpool/boot zfs set compression=off rpool/boot BTW, the zfsonlinux web site, mailing list and github issue tracker are the best places to look for answers to questions like this. (*) I boot off an SSD, with about 80GB for / (xfs), as well as 4GB for ZIL and about 20GB for zfs cache. I used to boot from RAID-1 disks. I may one day end up doing the same with SSDs. or i may switch to booting off ZFS. craig -- craig sanders <cas@taz.net.au>