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Managing Disks - Certify, Verify, Initialize
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Topic starter
It's time to migrate my Master volume to a new set of disks, and I've never done this with a RAID set up. I have SoftRAID Lite on a Mac Pro tower set up as follows: Master volume as RAID 0 (two disks), and Time Machine volume as RAID 1 (two disks), and a separate boot drive. Also, using CrashPlan for cloud backup.
After certifying the new disks, can I do the following? Pull the Time Machine volume from the tower, insert the new disks, and create a new RAID 0 with them. Then copy the Master from the old disks to the new. Finally, swap in the Time Machine disks back in?
Does the disk sled placement matter to SoftRAID? For example if the disks for the Master volume are originally in drive bays 1 and 3, does it matter if they're in bays 2 and 4 at the end of transfer. And then the Time Machine disks are placed in bays 1 and 3.
Or is there an easier way? Any help you can offer would be greatly appreciated.
Posted : 24/03/2019 7:49 pm
The location of trays does not matter at all.
Time Machine will probably break. Here is another way you can try with the Time Machine volume.
"Split Mirror"
Remove the split disk, and connect its replacement disk.
"Initialize" the new disk
"Add Secondary disk".
Let it rebuild.
"Set Primary disk" to the new, larger disk.
Split mirror again.
Add the new larger disk as before.
When you are done rebuilding, "Resize" and make the volume the max size.
Then your Time machine should work without resetting it.
Posted : 25/03/2019 1:54 am
Topic starter
Thank you for the quick reply. My apologies if the original post wasn't as clear as it should be. It is the Master volume RAID 0 (two disks) I wish to migrate to larger disks, and NOT the Time Machine volume. If what I just read about "Split Mirror" is correct, its not designed to cope with RAID 0. Please correct me if I'm wrong.
I'm proposing removing the Time Machine disk temporarily in order to copy the original Master volume over to a new Master volume comprised of larger disks. Then yanking out the "old master" volume and placing the Time Machine volume back in.
Posted : 25/03/2019 1:52 pm
There is no easy way to migrate RAID 0 disks to new disks, unless you have a disk duplicator or are familiar with the terminal (which could be used to copy disks, but can be dangerous to use)
Did you think about this:
Insert the two new RAID 0 disks in the Mac Pro. Create a new volume.
Either Finder copy the files from old to new, or use an app like Carbon Copy Cloner or SuperDuper to copy the files over.
Posted : 25/03/2019 3:18 pm
