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[3]: RAID Z
by gilboa on Tue 19th Jan 2010 14:37 UTC in reply to "RE[2]: RAID Z"
gilboa
Member since:
2005-07-06

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.
Some people (like me) have major misgivings about the lack of separation between the disk level (E.g. Hardware / Software RAID) and FS layer. (E.g. NTFS, ext4, etc).
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.

- Gilboa

Edited 2010-01-19 14:46 UTC

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