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Topic starter
I had this issue before 7.5 but using amphetmine app and the drive alive feature seemed to corral it mostly. However since v7.5 its no longer working and my array constantly and randomly spins down than back up. The drive never unmounts or anything like that. I believe it has been stated this is a problem with Apple's USB driver, but is there anything I can do? Hard drive spin up and down is the worst in terms of wear and tear.
Posted : 04/05/2023 2:49 am
Amphetamine no longer works?
What about "Caffeine"?
All this is totally controlled by macOS. It happens with Apple or SoftRAID formatted disks.
I presume you have sleep set to never put drives to sleep is disabled? In Ventura, you need to go to Screen lock to access this now.
Posted : 05/05/2023 10:31 am
Topic starter
Correct, Amphetamine isn't keeping the drive alive anymore. There were times it wouldn't before but a reboot seemed to help make it work. (I hesitate to say FIX). I have everything sleep related set to disabled/never etc. I can try caffeine I suppose. This issue is severely frustrating and I fear my drives are having their life significantly shortened with all this power up/down.
Posted : 07/05/2023 3:45 pm
This drive spindown can happen with uninitialize (raw) disks when the computer is sleeping. Most non RAID users do not notice this, as they have only one disk, and it may be a NVMe/SSD, which has a very unnoticable power up time. It is a MacOS bug.
According to studies by BackBlaze and google, power cycles are not related to early failure.
See if Caffeine works.
Posted : 08/05/2023 3:43 pm
I also just recently started noticing this issue with all of my external drives including my Thunderbay 4 on Ventura 13.4 running SoftRAID 7.5. The Mac OS bug creates a lag when trying to access files on the Thunderbay since the drive needs to spin up if the drive wasn't actively being used during editing. I tried the Caffeine app but it didn't work for me. I have just installed the Amphetamine app and set each of my external drives to always stay awake in Drive Alive under Preferences. This seems to be working for me at the moment. I've attached a screenshot of my Amphetamine settings if it helps anyone.
Posted : 14/06/2023 3:01 pm
Its one of the MacOS sleep issues. This would happen even with Apple formatted disks. You notice it more on RAID, as all 4 of the drives must spin up.
Posted : 15/06/2023 10:01 am
