Richard Elling wrote:
[sorry for the late reply, the original got stuck in the mail]
clarification below...
Ian Collins wrote:
Thanks for the heads up.
I'm building a new file server at the moment and
I'd like to make sure I
can migrate to ZFS boot when it arrives.
My current plan is to create a pool on 4 500GB
drives and throw in a
small boot drive.
Will I be able to drop the boot drive and move /
over to the pool when
ZFS boot ships?
Yes, should be able to, given that you have
already
had an UFS boot
drive running root.
Hi,
However, this raises another concert that during
recent discussions regarding to disk layout of a zfs
system
(http://www.opensolaris.org/jive/thread.jspa?threadID=
25679&tstart=0) it was said that currently we'd
better give zfs the whole device (rather than slices)
and keep swap off zfs devices for better performance.
If the above recommendation still holds, we still
have to have a swap device out there othere than
devices managed by zfs. is this limited by the design
or implementation of zfs?
We've updated the wiki to help clarify this confusion. The consensus best
practice is to have enough RAM that you don't need to swap. If you need to
swap, your life will be sad no matter what your disk config is. For those
systems with limited numbers of disks, you really don't have much choice about
where swap is located, so keep track of your swap *usage* and adjust the system
accordingly.
-- richard
This message posted from opensolaris.org
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One thing several of us want to do in Nevada is allocate swap
space transparently out of the root pool. Yes, there'd be
reservations/allocations, etc. All we need then is a way
to have a dedicated dump device in the same pool...
- Bart
--
Bart Smaalders Solaris Kernel Performance
[EMAIL PROTECTED] http://blogs.sun.com/barts
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