Rodney wrote:
Thanks Cindy and Darren.
I installed from the 2009.06 LiveCD and updated via the /dev repo to build 124
(and each in between over time).
After a reboot zfs volinit runs. After that I can add the zfs swap manually.
What's the next step to make it run at boot?
Update /etc/vfstab with a like something like this:
/dev/zvol/dsk/rpool/swap - - swap -
no -
replacing rpool/swap with what ever your dataset for swap is.
And if it's gone in future builds that what replaces it?
The work that the *private* 'zfs volinit' step did is all now automatic
and done in the kernel. Massive boot time improvements for system with
very large numbers of ZVOLs.
Regarding mirroring to a slice on the same disk it's because I'm using a laptop
with 1 hard disk.
I created two primary partitions using 50% each. I installed OSOL on the first
and mirrored to the 2nd primary partition. I'm using compression. I thought
this was a good way to get redundancy while also gaining back a lot of the lost
space.
I've tried that in the past (about 3 years a go IIRC) and it just hurts
performance. Since you can't physically replace either side of the
mirror you will get the same level of protection (maybe even better) and
better performance by setting the property copies to 2 (eg 'zfs set
copies=2 rpool').
--
Darren J Moffat
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