Raid 0+1?

[TornadoTed]

I have 4 hard drives in my Mac Pro 1x160Gb for the OS and 3x 250Gb.

I run a recording studio and 1 disk is fine for 44.1kHz sessions but I intend to go 96kHz.

I know I can set up a RAID 0 with two of the disks. Can I then set the last disk to mirror the RAID 0?

Would it 'keep up'?

Would the last disk need to be twice the size, 500Gb as the RAID 0 would be 500Gb, 250Gb x2

If I went for a RAID card to run say RAID 5 or probably RAID 6 I would have to get external harddrives, caddies for my drives, correct?

 

[brooker]

I have 4 hard drives in my Mac Pro 1x160Gb for the OS and 3x 250Gb.

I run a recording studio and 1 disk is fine for 44.1kHz sessions but I intend to go 96kHz.

I know I can set up a RAID 0 with two of the disks. Can I then set the last disk to mirror the RAID 0?

YES! i did this recently with MP server. it works great with the std disk utility prog.

Would it 'keep up'?

on reads, but maybe not as fast on writes. I use it for a DB server, so reads is what i need. it should be fast enough for any audio you can throw at it.

Would the last disk need to be twice the size, 500Gb as the RAID 0 would be 500Gb, 250Gb x2

correct.

If I went for a RAID card to run say RAID 5 or probably RAID 6 I would have to get external harddrives, caddies for my drives, correct?

right again. you can't run raid 5+ on the default MP drive controller.


One final thing to keep in mind... If you don't have 2 optical drives, you can add a 5th HD (PATA) to your setup. I run my server with RAID 1 system volume (2x250) and a RAID 0+1 (2x36,1x80) data volume. Total redundancy and increased performance. It rocks!

Hope that helps!