Linked by Thom Holwerda on Mon 18th Jan 2010 16:57 UTC, submitted by wanker90210
Hardware, Embedded Systems ACM's latest journal had an interesting article about RAID which suggested it might be time for triple parity raid. "How much longer will current RAID techniques persevere? The RAID levels were codified in the late 1980s; double-parity RAID, known as RAID-6, is the current standard for high-availability, space-efficient storage. The incredible growth of hard-drive capacities, however, could impose serious limitations on the reliability even of RAID-6 systems. Recent trends in hard drives show that triple-parity RAID must soon become pervasive."
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RE[4]: RAID Z
by Laurence on Tue 19th Jan 2010 15:41 UTC in reply to "RE[3]: RAID Z"
Laurence
Member since:
2007-03-26

I'm not quick to dismiss ZFS.
I actually have a OpenSolaris VM w/ZFS on this machine (under Linux/KVM).

I am saying that ZFS is not the solution to everything.
It cannot replace hardware RAID controllers.


While I do see where you're coming from, I think you've over-racted to the opening post as nobody was suggesting that ZFS was the solution to everything.
We were just saying that currently there is a solution to the lack of triple parity RAID and that solution is ZFS. It was a very specific point he was making rather than the generalised "ZFS will solve world debt" type evangelical speak that you're (understandably) sick of reading.

Sure there's needs for other solutions and standards - nobody disagrees with that. But the fact remains that ZFS DOES address the triple parity problem.
So personal opinions of ZFS aside - the original poster was spot on with his comments


And last and not least, *Solaris is also an OS. And you don't select an OS just because it has a shiny file system.


Actually you do if the purpose of an OS is to serve files.

Choosing an OS is about selecting that system has the right tools to do it's specific job the best.
So if you need a server with a file system such as ZFS, then selecting *Solaris because of it's FS is the correct decision to make. Just as if you want a media centre, you'd be more interested in graphics and sound card support than it's file system.

Besides, you talk as if you can't get samba, apache, et al for *Solaris, which clearly isn't the case.

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