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Power Off Retract Count

(@rpmurray)
New Member Customer

A few weeks back I created a RAID 1 of two hard drives. Over time I've noticed that each day the SMART data show an increase of 1 for the Power Off Retract Count and the Load Cycle Count despite the fact that I have turned off "Put hard disks to sleep when possible" in System Preferences. Is this something SoftRAID is doing?

Quote
Topic starter Posted : 20/01/2020 10:07 am
(@softraid-support)
Member Admin

I do not think SoftRAID has anything to do with this.

You can prove it either way by:
"Convert" and convert the volume to Apple RAID.
Do your sleep cycle.
Do you get the same result?

Then you can convert back to SoftRAID and let us know.

Note: This SMART result may annoy you, but this is not related to premature drive failure in any way. (according to multiple drive studies)

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Posted : 21/01/2020 6:56 pm
(@rpmurray)
New Member Customer

I don't put the Mac or the hard drives to sleep. They run 24/7 except when there's a power failure or doing an OS or application update that needs a restart.

I just found it weird that this only happens with the RAID and not with the other drive I have installed.

Maybe it's a feature of the drives. The one that doesn't do this is a 2TB HGST Deskstar HDS723020BLA642 while the RAID is using a pair of 8TB Ultrastar HGST HUH728080ALE600.

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Topic starter Posted : 22/01/2020 7:26 am
(@softraid-support)
Member Admin

Since this is a RAID 0 volume, it is easy to test by using Convert, and converting the volume to Apple format.

it well could be a drive behavior.

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Posted : 22/01/2020 12:53 pm
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