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On a Mac Pro (early 2008) running Mavericks, I have CCC Carbon Copy Cloner. My intenal Raid 1 drive is getting full and I want to clone to two larger hard drives. I have two external removable disk drives that I can use. How should I proceed?
Mac Pro, OS X 10.11
The complexity in my language there was intended to show you that you can ignore the intimate details about how these Volumes work internally, and just using the abstraction you have provided -- the Logical Volume (built of two connected Physical volumes) and just brute force COPY. You could even get Finder to do the copying. Do it the simple way.
I have deliberately broken RAIDs and copied one Physical Volume on the source end, and cloned to single drives and then re-built the mirror on the destination end. I was sweating bullets the whole time, fearful that I might make a mistake.
Do it the simple way. Don't overthink it.
Build a temporary MacOS Boot drive on an external drive, boot from it, and use all four bays at once for your Big Copy.
The complexity in my language there was intended to show you that you can ignore the intimate details about how these Volumes work internally, and just using the abstraction you have provided -- the Logical Volume (built of two connected Physical volumes) and just brute force COPY. You could even get Finder to do the copying. Do it the simple way.
I have deliberately broken RAIDs and copied one Physical Volume on the source end, and cloned to single drives and then re-built the mirror on the destination end. I was sweating bullets the whole time, fearful that I might make a mistake.
Do it the simple way. Don't overthink it.
Build a temporary MacOS Boot drive on an external drive, boot from it, and use all four bays at once for your Big Copy.
Install MacOS on an external drive and boot from it, so that you can use all the bays while you do this.
Don't make this harder than it is by over-thinking it.
Create a new Mirrored RAID set on the new drive set.
This turns those two drives into one logical mirrored Volume.
Copy or Clone the files from one old Logical Mirrored Volume to a new Logical Mirrored volume.
Now the hard part:
Mirrored RAID is not backup, it merely extends to time to repair after a drive failure to keep a drive failure from always being a data disaster. Mirrored RAID does not protect against multiple failures before you have time to replace a failed drive or accidental deletions or "crazy software",
¿What are you using for backup?
Thank you very much for the response. The last step says "copy or clone the files from one old Logical Mirrored Volume to a new Logical Mirrored volume" ... And then do I copy or clone the other old Logical Mirrored Volume to the other new volume or does the Raid automatically split the first volume onto the two new volumes?
I am using Time Machine as my back up.
Thanks again,
With RAID1 wouldn't you just need to clone to one of the new drives, because RAID1 auto copies the first drive to the second one?
Cloning Raid 1 mirroring drives to two larger drives
