Not at all. ZFS is a quantum leap in Solaris filesystem/VM
functionality.
However, I don't see a lot of use for RAID-Z (or Z2) in large
enterprise customers situations. For instance, does ZFS enable Sun
to walk into an account and say "You can now replace all of your high-
end (EMC) disk with JBOD."? I don't think many customers would bite
on that.
RAID-Z is an excellent feature, however, it doesn't address many of
the reasons for using high-end arrays:
- Exporting snapshots to alternate systems (for live database or
backup purposes)
- Remote replication
- Sharing of storage among multiple systems (LUN masking and equivalent)
- Storage management (migration between tiers of storage)
- No-downtime failure replacement (the system doesn't even know)
- Clustering
I know that ZFS is still a work in progress, so some of the above may
arrive in future versions of the product.
I see the RAID-Z[2] value in small-to-mid size systems where the
storage is relatively small and you don't have high availability
requirements.
On Jun 27, 2006, at 8:48 AM, Darren J Moffat wrote:
So everything you are saying seems to suggest you think ZFS was a
waste of engineering time since hardware raid solves all the
problems ?
I don't believe it does but I'm no storage expert and maybe I've
drank too much cool aid. I'm software person and for me ZFS is
brilliant it is so much easier than managing any of the hardware
raid systems I've dealt with.
--
Darren J Moffat
-----
Gregory Shaw, IT Architect
Phone: (303) 673-8273 Fax: (303) 673-8273
ITCTO Group, Sun Microsystems Inc.
1 StorageTek Drive MS 4382 [EMAIL PROTECTED] (work)
Louisville, CO 80028-4382 [EMAIL PROTECTED] (home)
"When Microsoft writes an application for Linux, I've Won." - Linus
Torvalds
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