RAID-0 inside Power Mac G5

Lt Major Burns

Lt Major Burns

"Dicky" Charlteston-Burns
i have just bought another 250gb SATA drive for my power mac. in there at the moment is another 250gb, and an 80gb which the new one will replace. can i set these up to work as RAID-0? (is that right? is RAID-0 where two drives are used as one, with 2x as fast read/write times?)

if so, does it require them to be formatted?
 
yes they do need to be reformated. but the down side of doing what you want is the fact that if one of those dives goes south on you your data is died. there is no know way to my knowing that you can get back your data. just heads up on that.
 
Now if only apple would make a RAID type 3 open to the end user that would rock. all the fun of a RAID type 0 with the paece of mind of a RAID type 1. That would rock.
 
The problem isn't the RAID types that Apple offers, but the fact that they're software implementations -- meaning that your CPU is doing all the work of splitting/mirroring the data between the drives. In fact, in some RAID setups of 0 or 1, you can actually see decreased performance if you implement the RAID via software.

RAID 3 is ridiculous and is rarely used at all. It doesn't boost performance of the disks, and will typically operate at the speed of a single disk. Why in the world would you want RAID 3?

http://www.acnc.com/04_01_00.html
 
Because you make a 1 TB hard drive with only needing 3 500 GB hard drives.
That way. I want RAID 3 not 0 or 1. Because RAID 3 ha sthe best of both type 0 and of type 1. If in off those 500 GB hard drives goed down you just put that other 3th hard in the place of the that went down. But all your data is right there ready to pickup from where you left off. as where a type 0 if one dive goes south on you game over for you data. thats why RAID 3.
 
If Apple offered a RAID 3 option in Disk Utility, it would be useless. Sure, you could built a 1TB fault-tolerant RAID out of 3 500GB drives, but it would be slow as molasses. You'd basically have to relegate the machine to being a RAID server, since RAID 3 is extremely processor intensive and would suck all your CPU cycles away. I would hardly recommend RAID 3 being built as a software RAID.
 
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