Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Yeroon

macrumors member
Original poster
Jun 12, 2012
64
0
Hi all! I've got a technical question that I couldn't find an answer for.

I'm a power user with lots of data. I'm using an iMac Pro with internal 1TB SSD and an external Thunderbolt 3 bay with four 8TB hdd's in RAID10 (striped+mirrored) - 8 of 16TB used. All data is also back-upped in the cloud.

Previously I had an 1TB external SSD attached to the Mac to make a Time Machine-backup of the Mac-drive (which contains the OS). I had an SSD crash once, so thanks to Time Machine my main system was up-and-running again within a few hours.

Now I decided to use Time Machine for a backup for the whole system. So not just the 1TB internal SSD with macOS, but also including my giant external RAID-system (using an external 12TB usb-c drive). Time Machine has no problems with this and can make back-ups of multiple drives, which is absolutely great.

My question is this: say my main (internal) 1TB macOS drive crashes, can I use Time Machine as I've previously did? As it's back-upping multiple drives, can I select the drive (or data) I want to restore? Or is Time Machine smart enough to understand that I only want to restore the 1TB SSD which contains the OS?

That's what I would expect. Or will it restore ALL drives, including the 8TB external data? That would be a waste of time.

It's probably a rhetorical question, but I'm just wondering is anyone has any experience with back-upping multiple drives with lots of data.
 

BLUEDOG314

macrumors 6502
Dec 12, 2015
377
120
I did exactly this a while ago, IIRC, when you go to restore a startup volume, you will only see the option to restore disks that were a startup volume. This way there should be no confusion.

Out of curiosity, what disk setup are you using to run a time machine of the RAID array?
 
  • Like
Reactions: Yeroon

Yeroon

macrumors member
Original poster
Jun 12, 2012
64
0
I did exactly this a while ago, IIRC, when you go to restore a startup volume, you will only see the option to restore disks that were a startup volume. This way there should be no confusion.
Ah, good to know! That's the way I hoped it would work. :)
Out of curiosity, what disk setup are you using to run a time machine of the RAID array?
I'm using an OWC Thunderbay TB3 with SoftRAID XT (4x 8TB WD RED, RAID10). I was actually (pleasantly) surprised that Time Machine wanted to make a back-up of it.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.