I don't know about RAID 1 (mirroring).. but I have been using striping (RAID 0)
on lesser systems without any apparent impact on latency or CPU load.
On Mon May 25 19:40 , Brent Busby sent:
I wondered what the prevalent opinion was about setting
up a software
raid mirror of two sata drives under Linux LVM. This is on a 3.2GHz
quad core AMD system that almost certainly has plenty of free CPU. Will
this provide extra disk i/o that could be usefully applied to getting
more simultaneous tracks, or will using a software mirror interfere with
the RT kernel or cause latency issues/instability somewhere?
--
+ Brent A. Busby + "We've all heard that a million monkeys
+ UNIX Systems Admin + banging on a million typewriters will
+ University of Chicago + eventually reproduce the entire works of
+ Physical Sciences Div. + Shakespeare. Now, thanks to the Internet,
+ James Franck Institute + we know this is not true." -Robert Wilensky
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