Re: possibly silly question (raid failover)

[Miles Fidelman <mfidelman@meetinghouse.net>]

David Brown wrote:
>
> You are aware, of course, that if you take your 16 drives and use 
> "-n8", you will get a total disk space equivalent to two drives.  It 
> would be very resistant to drive failures, but /very/ poor space 
> efficiency.  It would also be very fast for reads, but very slow for 
> writes (as everything must be written 8 times).
>
> It's your choice - md is very flexible.  But I think an eight-way 
> mirror would be considered somewhat unusual.

What would be particularly interesting is if I can do -n4 and configure 
things in a way that insures that each of those 4 is on a different one 
of my 4 boxes (4 boxes, 4 disks each).




-- 
In theory, there is no difference between theory and practice.
In<fnord>  practice, there is.   .... Yogi Berra