Brett wrote:
Hi Folks,
Im in a shop thats very resistant to change. The management here are looking
for major justification of a move away from ufs to zfs for root file systems.
Does anyone know if there are any whitepapers/blogs/discussions extolling the
benefits of zfsroot over ufsroot?
Regards in advance
Rep
I can't give you any links, but here's a short list of advantages:
(1) all the standard ZFS advantages over UFS
(2) LiveUpgrade/beadm related improvements
(a) much faster on ZFS
(b) don't need dedicated slice per OS instance, so it's far
simpler to have N different OS installs
(c) very easy to keep track of which OS instance is installed
where WITHOUT having to mount each one
(d) huge space savings (snapshots save lots of space on upgrades)
(3) much more flexible swap space allocation (no hard-boundary slices)
(4) simpler layout of filesystem partitions, and more flexible in
changing directory size limits (e.g. /var )
(5) mirroring a boot disk is simple under ZFS - much more complex under
SVM/UFS
(6) root-pool snapshots make backups trivially easy
--
Erik Trimble
Java System Support
Mailstop: usca22-123
Phone: x17195
Santa Clara, CA
Timezone: US/Pacific (GMT-0800)
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