RAID confusion

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Timothy Smith - 31 Oct 2006 00:34 GMT

I have a MacPro with two 500 GB drives. When I initially set the system
up, I planned to just use the second drive as a simple backup.

But I have decided that what I really need is a RAID 1 configuration,
using both drives mirrored. That is, have both drives be bootable, and
mirrored, so if one fails I can get back up and working right away on
the second drive.

I assume that I will have to (1) back up all my data on one or more
external drives, (2) reload OS X (10.4.8) in a RAID 1 configuration, (3)
re-install OS X in a RAID 1 configuration, (4) reload my data and
reinstall all non-OS X applications.

From the docs that Apple supplies, I do not know how to do this when I
reboot from the DVD.

Any pointers to better docs? Thanks.

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Johan W. Elzenga - 31 Oct 2006 18:18 GMT

> I have a MacPro with two 500 GB drives. When I initially set the system
> up, I planned to just use the second drive as a simple backup.
[quoted text clipped - 11 lines]
> From the docs that Apple supplies, I do not know how to do this when I
> reboot from the DVD.

If you boot from the DVD, you can start Disk Utility from there. With
Disk Utility you can format both drives and make a RAID from them. After
you've done that, the RAID will just look like one disk to the Mac, and
you can install MacOS X on it as you would on any drive.

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Johan W. Elzenga johan<<at>>johanfoto.nl
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Mac Forum / General / Hardware / October 2006

RAID confusion