On Sun, Dec 16, 2007 at 10:10:37AM -0800, David Brown wrote:
On Sun, Dec 16, 2007 at 02:12:01AM -0800, Tracy R Reed wrote:
Bob La Quey wrote:
The cost of ZFS + JBOD should be lower than anything
built on RAID. No hardware RAID controller to buy or
break.
I'm still reading about ZFS but doesn't it involve a form of software RAID
integrated with the rest of the storage system?
As I understand it, it allows a given filesystem to exist across multiple
devices, and for the filesystems you have to more freely use the available
space.
I don't think it provides redundancy, at least not on a full-system level
like RAID does. Simple google searches find plenty of people putting ZFS
on top of a RAID.
I guess this is wrong. According to Wikipedia's ZFS article, RAID-Z can do
something equivalent to RAID 1, which explains the people trying to do RAID
10 or other variants, with ZFS on top of that.
Dave
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