The reliability calculations for these scenarios are described in several
articles on my blog.
http://blogs.sun.com/relling
You do get additional, mirror-like reliability for using the copies
property, also described in my blog.
Personally, I'd go with mirroring across the shelves. KISS.
-- richard
Ian Collins wrote:
Will Murnane wrote:
Sorry for singling you out, Ian; I meant "Reply to All". This list
doesn't set "reply-to"...
On 5/30/07, Ian Collins <[EMAIL PROTECTED]> wrote:
How about 8 two way mirrors between shelves and a couple of hot spares?
That's fine and good, but then losing just one disk from each shelf
fast enough means the whole array is gone.
Only if you lost the same two drives in each shelf, same as any other
striped mirror. I guess the ideal solution in this case would be the
ability to use mirrors as raidz components.
Ian
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