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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Consumer Hardware & Components > RAID1 or not

RAID1 or not
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Fresh-Faced Recruit
Join Date: Jul 2018
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Jul 2, 2018, 06:25 PM

My Airport time capsule broke down, I'm so lucky I have cloud-backup to restore to another usb 2 hdd. Now I need another drive and can't decide what to get, do I buy a thunderbolt 3 drive for time-machine and my music collection or better buy a RAID system. RAID in TB3 would be very expensive so that would be a USB 3.0 RAID, I have everything in a cloud backup also but just to be sure ?

Join Date: Jun 2000
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Jul 2, 2018, 07:48 PM
RAID is used for extra-large volumes and/or redundancy.

Sounds like all your stuff will fit on a single normal-sized drive. So you don't need RAID for volume size.
As you have an offsite (cloud) backup, you're good on redundancy too.

Don't bother with a RAID setup.
Clinically Insane
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Jul 3, 2018, 03:47 PM

If it’s under 4 terabytes, I’d get a 4 terabyte drive and a USB 3 enclosure.

If it’s over that, but under 8 terabytes, I’d get two 4 terabyte drives and two USB 3 enclosures. I would use them as two drives, not as a RAID.

With a few exceptions, RAID is for when you need even more than that.
Clinically Insane
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Jul 4, 2018, 01:16 AM
I should have put a little more here (as reader50 pointed out to me).

There are hard drives available which are much larger than 4 terabytes, but I’m very conservative about these sorts of things.

Manufacturers have been making 4 terabyte drives for a long time, and have effectively perfected the process. They’ve had less time with larger models.

With 4 you’re about as safe as you can get. 6 is probably close to that, now. 8 is probably fine, as I said, I’m conservative. I wouldn’t go larger, but that’s me.
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