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Don_Con

macrumors member
Original poster
Oct 3, 2019
30
10
Alexandria, VA
All,

I have a MacPro 5,1 that has been upgraded significantly since early January 2021, and it has been running flawlessly until today where I started experiencing 4-5min freeze of the entire system, with a subsequent **unfreeze** and "Disk Ejected improperly" error.

1632278091626.png


Background:

It is an all-in-one machine for me, and i use it as a Plex Server with an internal (software) raid, so it has 6 total Drives in it:

Boot Drive for Mojave - SSD2 (run off a PCI SSD)
User Director/Applications/Files - New Mac HDSSD - Run off a OWC SSD plugged into Bay 1
10TB - 10TB - 10TB - Raid 5 (Seagates plugged into Bays 2-4)


Starting Today, the freezing issue occured. I've done no major software installs/upgrades on the machine since JAN 2021, and when I boot the machine in works for about a 1-2min, then it freezes hard for 5-6mins, then unfreezes and says "SSD2 Was ejected improperly". And I cannot remount it. I moved the New Mac HDSSD into a different bay, and also plugged it into the SATA connection underneath the CD-ROM, and no change.

I pulled the drive out and mounted it to my laptop to do FirstAid, and my laptop's DiskUtil says the drive is fine. I then plugged the Mac HDSSD drive into an external USB and plugged it into my MacPro and the MP seem to run fine. On the last freeze, I had the system error output up and I captured this error right at the time of the freeze:


Screen Shot 2021-09-21 at 19.45.34.png



As I have been trying to trouble shoot this issue, I now find myself unable to even boot the computer to a login screen. I turn the power on, it gives me the normal apple audible sound, and then it just sits there.

I can't boot into Recovery mode (Command-R) either.

I feel deeply screwed, like this is a logic board issue. And I dont know where to even begin.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,601
Remove all disks, yes all disks, insert just a Mojave createinstallmedia USB installer and see if you can boot from it.

If you can, shutdown, then you'll install a fully erased/brand new SATA disk to SATA bay 1 and then try to install Mojave to it.

Don't use the disk that is disconnecting, use a different one that you are sure that works perfectly or a brand new SATA SSD.
 
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Don_Con

macrumors member
Original poster
Oct 3, 2019
30
10
Alexandria, VA
Something on the MacPro must have been trying to read one of the external drives as a boot disk. I still have all my drives in as of now, but I am now logged into the computer with the suspect Mac HDSSD drive plugged in via an external OWC bay.

No freezing, no ejection issues. So I've gotten past the inability to boot problem, but now still have this issue with the mac pro ejecting this disk whenever it is put into an internal bay.
 

tsialex

Contributor
Jun 13, 2016
13,455
13,601
Something on the MacPro must have been trying to read one of the external drives as a boot disk. I still have all my drives in as of now, but I am now logged into the computer with the suspect Mac HDSSD drive plugged in via an external OWC bay.

No freezing, no ejection issues. So I've gotten past the inability to boot problem, but now still have this issue with the mac pro ejecting this disk whenever it is put into an internal bay.
Seems to be a defective disk, check SMART with DriveDX, if your external bay reports SMART via USB.
 
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tsialex

Contributor
Jun 13, 2016
13,455
13,601

Don_Con

macrumors member
Original poster
Oct 3, 2019
30
10
Alexandria, VA
If you still have warranty, do a RMA. If not, it's paper weight now. Flash erase failures are the worst that can happen before the total failure of the NAND chips, the NAND cells are not capable of being erased anymore.

Thx man, appreciate your support. On with OWC now, and so far its allowing me to back up the drive to another HDD. Will report back.
 

Don_Con

macrumors member
Original poster
Oct 3, 2019
30
10
Alexandria, VA
Update: OWC has sent a RMA, and i was able to back up the failing drive completely before it totally ***** the bed. Hoping OWC just does a SWAP for a new one, provided them all the output and screen shots form DriveDx.

Never thought I'd have a SSD fail like this within first 12 months. I've had HDDs under brutal use for years that had no issues, but understand **** happens.
 

Don_Con

macrumors member
Original poster
Oct 3, 2019
30
10
Alexandria, VA
Curious though, the new drive comes in @ 71.4% health rating based on DriveDX:

Health indicator #1 (raw read error rate) is @ 71%, and SATA CRC Error Count @ 71%.

Anything I should be concerend above
 

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