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Old 11-22-2018, 09:26 AM
Michael@wengam Michael@wengam is offline
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Join Date: May 2006
Posts: 68
How I did this

This enclosure worked well for this, connected to a 1TB SSD Mac Mini 2018 (now 95% full) through USB-C:
Mediasonic ProRaid USB-C 2 Bay 2.5” SATA SSD/Hard Drive Enclosure – USB 3.1 Gen-II 10Gbps Speed/USB Type C (HUR6-SU31C Grey)

I put a 1TB Samsung SSD in bay 1 (daily_backup) and a 2TB Samsung HD in bay 2 (containing weekly_backup and monthly_backup). I formated both as APFS. I left the enclosure's default settings for 'single disks' as is (no raid).

The initial SD! clone to the SSD ran at up to 250 MB/s and took less than an hour.

The second Smart Backup to the SSD was mostly over 1GB/s and took less than 20 minutes.

I use TinkerTool System to set the three drives to not mount on startup, and SuperDuper! respects that by automatically mounting/unmounting the volumes as needed. Nicely, there is no light on the enclosure when the drives are unmounted (but plugged in), and I can tell by the feel of it that the spinning drive is not spinning then. [More on this: the drive instructions say the USB port of your PC must support power-off function so that the device would go to sleep mode, so this seems to be what is happening with this Mac Mini].

Last edited by Michael@wengam; 11-22-2018 at 12:13 PM. Reason: added sleep mode requirement from enclosure instructions
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