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  2. MIDRANGE-L
  3. October 2013

Re: Disk requirement (performance-wise) on a Power 7 replacing a System i 520

Should 70GB drives be used for stale data? These drives are so huge that
wouldn't one be better off just using them for non volatile data and use a
bunch of 4 or 8gb drives instead for their more volatile data? This way
you get more arms?

Not a real question. It's just something to put how times are changing
into perspective. With disks available in >800Gb size, which is currently
22 times the size of Jeff's current drives (which is close to the ratio
between 4 and 70GB drives), let's not assume that such monsters are best
just utilized for stale non volatile data.

Just speaking as someone who once went from 42 arms down to 7 and got much
better performance.


Rob Berendt

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