RAID-Z at the OpenStorage Summit
I had the chance to speak at the OpenStorage Summit a couple of weeks ago about RAID-Z (the ZFS implementation of RAID). The talk was an accumulation of blog posts and articles written by me and others as well as quite a bit of new material that’s been building up. The talk was an overview [...]
In: ZFS · Tagged with: OpenStorageSummit, RAID-Z, ZFS
What is RAID-Z?
The mission of ZFS was to simplify storage and to construct an enterprise level of quality from volume components by building smarter software — indeed that notion is at the heart of the 7000 series. An important piece of that puzzle was eliminating the expensive RAID card used in traditional storage and replacing it with [...]
In: ZFS · Tagged with: Fishworks, HSP, JeffBonwick, RAID, RAID-Z, ZFS
Triple-Parity RAID-Z
Double-parity RAID, or RAID-6, is the de facto industry standard for storage; when I started talking about triple-parity RAID for ZFS earlier this year, the need wasn’t always immediately obvious. Double-parity RAID, of course, provides protection from up to two failures (data corruption or the whole drive) within a RAID stripe. The necessity of triple-parity [...]
In: ZFS · Tagged with: Fishworks, GaloisField, OpenSolaris, RAID-Z, raidz3, Solaris, ZFS
Expand-O-Matic RAID-Z
I was having a conversation with an OpenBSD user and developer the other day, and he mentioned some ongoing work in the community to consolidate support for RAID controllers. The problem, he was saying, was that each controller had a different administrative model and utility — but all I could think was that the real [...]
In: ZFS · Tagged with: OpenSolaris, RAID-Z, Solaris, ZFS
Double-Parity RAID-Z
When ZFS first started, it was just Jeff trying to pair old problems with new solutions in margins too small to contain either. Then Matt joined up to bring some young blood to the project. By the time the project putback, the team had grown to more than a dozen. And now I’ve been pulled [...]
In: ZFS · Tagged with: GaloisField, OpenSolaris, RAID-Z, raidz2, Solaris, ZFS