If it means you will be spreading I/O across many spindles where before
you were just hitting a few, it may well increase performance. For
example, if you have a particularly well-used datafile and rbs on two
mirrors, and now you are spreading the writes for both over a mirror
with 8 disks, that could be good. Of course, if you were formerly
using two controllers to get to many mirrors and are now using one, you
could make it worse if it saturates, so it depends.
jg
--
@home.com is bogus.
"I must not think bad thoughts." - John Doe
Received on Wed Feb 09 2005 - 17:22:54 CST
