Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Large internal hard drives won't mount after restart in Mac Pro 5,1

h9826790 said:
WD 4TB Red
Click to expand...

Any update on this issue?

Wish i had seen this thread before I just purchased 2 x 8TB WD Red HDD!

They unmounted during testing at around the 4TB mark and could not be re-mounted and applications could not be opened or quit until I forced shutdown. The were mounted successfully on cold boot but not sure how long that will last or how reliable they will be for storage purposes inside this mac :(

Mac Pro 5.1 running 10.10.5 with these drives in Bays 1 and 2.

Thanks.
 
FGamble said:
Any update on this issue?

Wish i had seen this thread before I just purchased 2 x 8TB WD Red HDD!

They unmounted during testing at around the 4TB mark and could not be re-mounted and applications could not be opened or quit until I forced shutdown. The were mounted successfully on cold boot but not sure how long that will last or how reliable they will be for storage purposes inside this mac :(

Mac Pro 5.1 running 10.10.5 with these drives in Bays 1 and 2.

Thanks.
Click to expand...

My WD Red 8TB (WDC WD80EFZX-68UW8N0) works quit OK now.

It suffered from the "not mounted" issues back in early High Sierra (only happen during warm restart, once mounted, never disconnect).

And now Mojave is about 95% will mount properly after boot (warm restart), and 100% OK on cold boot.

And I never suffer from the disconnect issue.

Do you have this same model of WD Red 8TB? Or the newer one?
 
Both my 8TB WD Red's are:-
WDC WD80EFAX-68KNBN0

I also bought two of the new OWC sleds in preparation for the "new standard" screw arrangement, only to find this model of Red has six holes, and fits the old sleds just fine :O
 
FGamble said:
Both my 8TB WD Red's are:-
WDC WD80EFAX-68KNBN0

I also bought two of the new OWC sleds in preparation for the "new standard" screw arrangement, only to find this model of Red has six holes, and fits the old sleds just fine :O
Click to expand...

So you have the newer 256MB cache model, that may make the difference.
[doublepost=1538641813][/doublepost]Did you try the "pin 3 fix" yet?
 
h9826790 said:
So you have the newer 256MB cache model, that may make the difference.
[doublepost=1538641813][/doublepost]Did you try the "pin 3 fix" yet?
Click to expand...

Not yet, I will try a few more tests first. Also, I was under the impression that was not really a reliable solution?

They were suddenly unmounted while I was doing the full "Scan Volume for Bad Sectors" test with Disktools Pro to check they are 100% healthy before transferring data to them.

I wonder if the program may have caused it?

At the moment I am testing one again with Disktools Pro in an external USB3 dock and the other disk is mounted ok in Bay 2 where I plan to leave it without interference to see if it suddenly dismounts itself over the next day or two.
 
Last edited:
FGamble said:
Not yet, I will try a few more tests first. Also, I was under the impression that was not really a reliable solution?

They were suddenly unmounted while I was doing the full "Scan Volume for Bad Sectors" test with Disktools Pro to check they are 100% healthy before transferring data to them.

I wonder if the program may have caused it?

At the moment I am testing one again with Disktools Pro in an external USB3 dock and the other disk is mounted ok in Bay 2 where I plan to leave it without interference to see if it suddenly dismounts itself over the next day or two.
Click to expand...

Never use this kind of tool on my WD Red 8TB, may be it's the reason why you get that sudden offline. I use my WD Red 8TB for more than 18 months now. Running 24/7, no auto unmount even once yet (in all Sierra, High Sierra, Mojave, Win 10, Linux, including some beta OS).
 
h9826790 said:
Never use this kind of tool on my WD Red 8TB, may be it's the reason why you get that sudden offline. I use my WD Red 8TB for more than 18 months now. Running 24/7, no auto unmount even once yet (in all Sierra, High Sierra, Mojave, Win 10, Linux, including some beta OS).
Click to expand...

Yes, it could very well be the issue. Will notify of any developments.

The other possibility is that it could be due to a Yosemite 10.10.5 issue? I have been nervous about updating due to issues with more recent OS's but was almost going to take the leap to El Capitan :p.

Do you find any of the newer OS are stable or recommended?

Thanks for the help! :)
 
FGamble said:
Yes, it could very well be the issue. Will notify of any developments.

The other possibility is that it could be due to a Yosemite 10.10.5 issue? I have been nervous about updating due to issues with more recent OS's but was almost going to take the leap to El Capitan :p.

Do you find any of the newer OS are stable or recommended?

Thanks for the help! :)
Click to expand...

Believe it or not. In my own experience, the current initial release Mojave is the most stable OS on my cMP since 10.6.8.

10.13.6 also good IF use HFS+. (APFS on Mojave seems OK at this moment, no issue on my setup). Early High Sierra is not good, occasionally KP, but that's history now.

Sierra not that good for me. Dock icon become question marks for no reason, suddenly super high memory usage which freeze the whole Mac, etc.

El Capitan is nowhere near good as well. Even some simple functions like adjust screen brightness can be occasionally broken (with Apple keyboard and Apple Cinema Display), Finder often hang, etc.

Yosemite was OK, except not working well with my HD7950. If no GPU drive issue (mainly in Safari), it should be a good system.

So, if you ask me. I will say either direct jump to Mojave. Or stay at Yosemite.
 
  • Like
Reactions: FGamble
h9826790 said:
Believe it or not. In my own experience, the current initial release Mojave is the most stable OS on my cMP since 10.6.8.

10.13.6 also good IF use HFS+. (APFS on Mojave seems OK at this moment, no issue on my setup). Early High Sierra is not good, occasionally KP, but that's history now.

Sierra not that good for me. Dock icon become question marks for no reason, suddenly super high memory usage which freeze the whole Mac, etc.

El Capitan is nowhere near good as well. Even some simple functions like adjust screen brightness can be occasionally broken (with Apple keyboard and Apple Cinema Display), Finder often hang, etc.

Yosemite was OK, except not working well with my HD7950. If no GPU drive issue (mainly in Safari), it should be a good system.

So, if you ask me. I will say either direct jump to Mojave. Or stay at Yosemite.
Click to expand...

Great advice thanks!

By the way, did you apply the "pin 3 fix" to your 8TB Red or wasn't it necessary to get your stable performance?
 
Hi all sorry to bubble this tread back up to the top but I am running out of space and need to purchase a new high capacity drive.

Have any of you managed to find a 7200 high capacity drive that boots all the time on the 5.1 Mac Pro without modifications?
 
spacedesign911 said:
Have any of you managed to find a 7200 high capacity drive that boots all the time on the 5.1 Mac Pro without modifications?
Click to expand...

May be helpful to identify if you are talking about cold boot only or also meaning system restarts. Restarts are where the majority seem to have issues.
 
Checking in; this problem still persists on 10.14.4.
5,1 2x2.93, 48GB, R9 280X 3G
1TB 840 EVO and the rest are 4TB HGST Deskstar (bays 2, 3, 4)
 
I have a 2009 Mac Pro running macOS 10.12.6 and I'm also experiencing this same issue, and have been for quite some time. I'm using the system as a server and it has five internal drives. One is an SSD, and the other four are 4 TB hard drives, two from Western Digital and two from HGST.

Similar to other reports in this thread, most of the time (but not always!) when I reboot my Mac Pro two of the drives will be visible and mountable, and the other two will be missing. The only thing that fixes it is powering off completely and then powering back on.

Is there anything I can do to improve this situation? Looking through the thread it doesn't look like anyone has found a solution, other than being careful which drives you buy. (And I'm stuck with the ones I've got.) I certainly hope there's something we all can do to fix this.

One thought: could it possibly help things to switch which drives are in which drive bays? One of the drives is mounted in the optical drive bay and connected using the power / SATA connector there, and there's room for another drive. If this is due to a power issue I wonder if it matters how I arrange things?

edit: I have a 2009 Mac Pro, not a 2011. However I upgraded its firmware to one for the 2010 Mac Pro so I could install Sierra.
 
Last edited:
I can confirm that the 8TB Seagate Exos 7E8 512E mounts properly after a restart in a MacPro5,1.
 
Hi Guys!

I'm having issues like that on my MacPro 5.1 / Mojave 10.14.5!

My HD 4TB WD Red PRO WD4003FFBX doesn’t mount after Restart. If I turn off my MacPro and turn it on this HD appears normally... Although this problem, this HD seems to work normally ... I did a format by writing the zeros once and made a bad block scan... Everything looks fine.


The problem only happens with WD RED PRO 4TB.

Besides the WD RED PRO I have installed on my Mac Pro one HD 8TB Seagate Iron Wolf ST8000VN0022, one 2TB Seagate Barracuda and two 860 EVO SSDs (one in optical Bay), they all mount normally after restart.

I removed the Iron Wolf 8TB and the Seagate Barracuda and tried the WD RED PRO 4TB on other MacPro drive bays but the problem always happens after restart...

Only the 860 EVO (System HD) is APFS, all the others HDs are “Mac OS Extended (Journaled)” including WD RED PRO 4TB...

Do I have to worry about this WD RED PRO 4TB?


(MacPro Mid 2010 5.1 8 cores, Firmware 141.0.0.0.0, Nvidea QUADRO K5000 for Mac, 32 GB RAM, two Samsung 860 EVO, one 8TB Seagate Iron Wolf ST8000VN0022, one 2TB Seagate Barracuda and one 4TB WD Red PRO WD4003FFBX.)
 
Black Ninja Original said:
Do I have to worry about this WD RED PRO 4TB?
Click to expand...

This is a KNOWN ISSUE. If you can live with the warm restart not appearing, it's nothing to worry about. If you cannot live with it, or use it as a boot drive - it's a bigger issue that should be addressed with changing to another drive.
 
bsbeamer said:
This is a KNOWN ISSUE. If you can live with the warm restart not appearing, it's nothing to worry about. If you cannot live with it, or use it as a boot drive - it's a bigger issue that should be addressed with changing to another drive.
Click to expand...
Thanks!
it's a pity an expensive HD like this having this kind of problem!
WD should release a firmware update that fixes this problem...
My 8TB Seagate Iron Wolf don’t have this problem...
 
I recall someone mentioning Apple needed to add something to firmware to recognize these additional models properly, but that has never been 100% verified. Switch to smaller HDDs and the issue goes away. Switch to HDDs with the old screw pattern and the issue mainly goes away. There's a whole thread documenting the results.
 
bsbeamer said:
I recall someone mentioning Apple needed to add something to firmware to recognize these additional models properly, but that has never been 100% verified. Switch to smaller HDDs and the issue goes away. Switch to HDDs with the old screw pattern and the issue mainly goes away. There's a whole thread documenting the results.
Click to expand...

In my case my WD Red Pro is 4TB (not to big...), old screw pattern (thanks God) and has the problem.
My Seagate Iron Wolf has 8TB, new screw pattern (thanks OWC Hard Drive Bracket) and doesn’t have that restart problem ...
Both are NAS drivers and 256MB cache...
Go figure...
 
TGDr-aka-RG said:
I realise this is an old thread, but I have written an AppleScript app that will perform a 'cold restart' - this may be of use to some of you - I attach both the App and the Script here... You may need to edit the times to match your system.
Click to expand...
This script work nicely.

My 8TB WD Red HDD work nicely for years now. But few weeks ago, I moved my Windows SSD from the optical cage to PCIe card, then this "won't mount after warm reboot issue" came back. Even I moved the SSD back to the optical cage still nil help.

I tried the pin 3 fix, also nil help for this HDD. So, it's something else for this particular model's HDD.

Anyway, your script now make me can perform "restart" again, no need to shutdown -> cold boot.
 
Last edited:
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back