Well, if you don't care about your videos, RAID 0 will go the
fastest. For the best price/speed/integrity, a RAID 5 array will
work best.
http://www.acnc.com/04_01_05.html can help you determine what kind of
RAID array. With RAID 5, the total storage space lost is equal to
the number of drives as a percentage. With a 5 drive array, you
loose 20% of your disk space.
You could also do a RAID 0+1 setup which RAID 0 speed with RAID 1
integrity but is harder to set up and maintain since it requires 4
drives to work, and more to be effective. RAID 5 only requires 3
drives (but 4 are recommend at least).
Brandon
On Nov 15, 2005, at 10:31 PM, Mike wrote:
After using MythTV for quite some time. I'm starting to think I
might want a raid controller to use with my 2 hitachi deskstars
(250GB)
I'm sort of looking at a 3ware 7506-4LP but I hear the performance
isn't all that and its more for redudancy. I'm going for both size
and speed since it seems a lot of the wait is in the drive, plus I
want lots of storage. I have little faith in software raid
controllers and really want the whole process offloaded from the
CPU so it can do things like commflag. (hence the 3ware with good
linux support)
Does anybody have any suggestions to get the most speed out of my 2
drives? Also, I am not opposed to buying 2 SATA II drives and a
3ware SATA controller for the backend. Is it really that big of a
difference? Things seem slow with mythcommflag running, 3 shows
recording and trying to bring up the recorded programs from
mythweb. I plan on adding an HD-3000 to the mix which I hear I need
almost an entire systems resources by itself just to watch live
HDTV since it isn't HW encoded. And I prefer not using XvMC since
the only thing I've managed to do with it is make the picture look
worse and have the computer crash every couple of hours with it on.
Any suggestions on the raid card and hardware configuration?
Thanks
-Mike
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