MP 7,1 Pegasus J2i for Time Machine Backup?

choreo

macrumors 6502
Original poster
Jan 10, 2008
358
127
Midland, TX
Would this be a good choice for a TM backup drive? I have read that adding a spinning disc slows the Finder down? Is that true?
 

ondioline

macrumors newbie
May 5, 2020
14
12
yes. TM doesn't affect finder performance so it doesn't matter what disk it's on? i have two 6TB drives in raid 1 in the J2i enclosure for that purpose, PCIE NVME for everything else
 
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choreo

macrumors 6502
Original poster
Jan 10, 2008
358
127
Midland, TX
Do the drives added need to be formatted APFS? Can it accept HFS inside the Mac Pro running Catalina? Does it matter?

What kind of Read/Write speeds should I expect from the provided drive?
 

ondioline

macrumors newbie
May 5, 2020
14
12
I only really hear the disks spinning up when the system starts. I suppose it depends on your disks though. The enclosure is pretty high quality and has sound dampening rubber around most of the parts that could vibrate however. I can’t say it’s completely silent (my Mac Pro sits under my desk so it’s not by my ears) but I don’t hear anything.
 

darthaddie

macrumors member
Sep 20, 2018
68
48
Planet Earth
Something to note. The Spinning drives, internal or external, will take a while to wake from sleep, if you have set your Mac to sleep or "Put Hard Disks to sleep whoever possible" is selected.

This would freeze the finder for me until the drives came up at times. I disabled both options (never use sleep anyway) and no delays.
 
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mattspace

macrumors 65816
Jun 5, 2013
1,394
1,047
Australia
Would this be a good choice for a TM backup drive? I have read that adding a spinning disc slows the Finder down? Is that true?
Your Time Machine safety-line will be sitting constantly in the exhaust heat from your CPU. Is that safe?
 
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