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Thunderbolt unreliable on 2013 MacPro
02-04-2014, 01:02 AM
Post: #1
Thunderbolt unreliable on 2013 MacPro
I am experiencing frequent Drobo disappearing acts on my MacPro (the trashcan version), using Thunderbolt and a Drobo 5D running the latest firmware.

I used the 5D for 2 weeks before on an older MacPro with a USB 3.0 card and the issues have been similar.

The behaviour seems to be that, if the Mac was EITHER powered down, or sleeping for several hours, that the Drobo does not wake up anymore when the machine is restarted, or woken up.

Only way to get the Drobo to reconnect is to manually power it down and on again.

That seems to be a firmware issue, as, when examining the Thunderbolt bus on the MacPro, the Drobo 5D is still shown as connected. But neither the Dashboard, nor the terminal, nor the finder can find the drive.

Trying to create a ticket, but the Drobo site throws me an SSO error (and yes, i mailed them about that), so for now, i am trying to gather more information.

Is that a known/common/rare issue?

Regards

Frank
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02-04-2014, 03:10 PM
Post: #2
RE: Thunderbolt unreliable on 2013 MacPro
hi frank,

to be frank, ( Smile ) macs and thunderbolts and mavericks have usually been in threads with connection/access problems.
dont worry about the sso issue, i've been there and some others too and the team were able to sort that out for us.
as for the issue you have, i was wondering if you have been able to try your newer/current macpro via usb? just to see if it helps in any way?

(sorry for the frank jokes) - just trying to help a bit Smile

paul
(from frankfurt) Big Grin

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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02-05-2014, 01:24 AM
Post: #3
RE: Thunderbolt unreliable on 2013 MacPro
Hey Paul, tx for the answer. Yes, the SSO issue is supposed to be solved.

Being a German working for american companies, i love to do the " to be frank" joke myself all the time Smile

No, i have not tried using USB 3.0 for an extended period of time (just briefly to see if it was any faster/any perceivable difference). Might try that, to see if it makes a difference, but to be honest, my USB ports are full, and i bought the Drobo for the Thunderbolt port.

I will file a support ticket, to see what they come up with. But i do suspect that to be a firmware bug on the Drobo side.

Frank (from Wermelskirchen, in the Bergische Land).
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02-05-2014, 04:42 AM
Post: #4
RE: Thunderbolt unreliable on 2013 MacPro
hallo Smile

ok please do try another thunderbolt cable as well, just in case the existing cable has become damaged in some way, and look forward to hearing your results.

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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02-05-2014, 10:47 AM
Post: #5
RE: Thunderbolt unreliable on 2013 MacPro
In addition to the cabling, does it help if you change the hibernation setting on your computer?

This seems to have helped some other users:
https://discussions.apple.com/message/24137015#24137015

I'd be curious to see if this works, because it does seem to be limited to Mavericks. 10.8.5 had the same issue briefly until the supplemental update came out.
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02-10-2014, 06:19 AM
Post: #6
RE: Thunderbolt unreliable on 2013 MacPro
After a bunch of tries and a lot of diags send around, support has issued an RMA to make sure that it is not the unit itself that is defective...

I will keep this updated.

Frank
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02-10-2014, 06:11 PM
Post: #7
RE: Thunderbolt unreliable on 2013 MacPro
FYI - nMP + Pegasus2 = absurd speeds. It's not a nMP issue.

In fact, i7 MacMini + Drobo 5D (TB) is damn fast.

Something in your chain is bad. It's not a global issue.

i7 Mac Mini Server, 10.10
Drobo (Gen2), USB, 4x WD 4TB RED

Drobo (Gen3), USB3, 4X WD 4TB RED

Drobo 5D, TB, 5x WD 4TB RED, 120GB Intel 525 mSATA SSD
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02-11-2014, 04:51 AM
Post: #8
RE: Thunderbolt unreliable on 2013 MacPro
(02-04-2014 01:02 AM)fmantek Wrote:  I am experiencing frequent Drobo disappearing acts on my MacPro (the trashcan version), using Thunderbolt and a Drobo 5D running the latest firmware.

I used the 5D for 2 weeks before on an older MacPro with a USB 3.0 card and the issues have been similar.

The behaviour seems to be that, if the Mac was EITHER powered down, or sleeping for several hours, that the Drobo does not wake up anymore when the machine is restarted, or woken up.

Only way to get the Drobo to reconnect is to manually power it down and on again.

That seems to be a firmware issue, as, when examining the Thunderbolt bus on the MacPro, the Drobo 5D is still shown as connected. But neither the Dashboard, nor the terminal, nor the finder can find the drive.

Trying to create a ticket, but the Drobo site throws me an SSO error (and yes, i mailed them about that), so for now, i am trying to gather more information.

Is that a known/common/rare issue?

Regards

Frank
I have 2 Drobos 5D daisy chained with SD to My Mac Pro 6.1 . I had some problems at first with the cables. TB cables seem touchy. One apple 2m TB cable gave me some problems : it had to be plugged and unplugged several times to get a proper connections. I must say that I had not the same problem with the TB cables provided with the Drobos.
Otherwise the 2 beasts work Ok now.
BTW I sent a post a few weeks ago about backing up one Drobo to the other with SuperDuper. That was before I received the Mac Pro.
I'm glad to report that I did the job without any problem. The first backup began by erasing all data on the Target Drobo, then copied about 1,8 TB in about 4 hours. After transfering 8 GB on the Source Drobo, I did a "smart backup" on the Target : it took exactly 2 minutes 51 seconds !
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02-27-2014, 04:47 PM
Post: #9
RE: Thunderbolt unreliable on 2013 MacPro
The exact same thing happened to me. My MacPro rebooted out of nowhere and now one 5D will not mount... no blue lights are even visible. Another 5D will also not mount. The only Drobo devices that mount are two 5Ns (network devices).

I'm NOT happy. Neither of these are visible at all.


(02-04-2014 01:02 AM)fmantek Wrote:  I am experiencing frequent Drobo disappearing acts on my MacPro (the trashcan version), using Thunderbolt and a Drobo 5D running the latest firmware.

I used the 5D for 2 weeks before on an older MacPro with a USB 3.0 card and the issues have been similar.

The behaviour seems to be that, if the Mac was EITHER powered down, or sleeping for several hours, that the Drobo does not wake up anymore when the machine is restarted, or woken up.

Only way to get the Drobo to reconnect is to manually power it down and on again.

That seems to be a firmware issue, as, when examining the Thunderbolt bus on the MacPro, the Drobo 5D is still shown as connected. But neither the Dashboard, nor the terminal, nor the finder can find the drive.

Trying to create a ticket, but the Drobo site throws me an SSO error (and yes, i mailed them about that), so for now, i am trying to gather more information.

Is that a known/common/rare issue?

Regards

Frank
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02-28-2014, 12:33 PM
Post: #10
RE: Thunderbolt unreliable on 2013 MacPro
(02-27-2014 04:47 PM)nashuavideotours Wrote:  The exact same thing happened to me. My MacPro rebooted out of nowhere and now one 5D will not mount... no blue lights are even visible. Another 5D will also not mount. The only Drobo devices that mount are two 5Ns (network devices).

I'm NOT happy. Neither of these are visible at all.
The sudden reboot probably left the filesystem in a dirty state. This can prevent mount of the device and is not a Drobo-specific problem.

http://support.drobo.com/app/answers/det...http://support.drobo.com/app/answers/detail/a_id/315/~/why-does-my-drobo-storage-device-no-longe

--Brandon | WHS2011+Drive Bender/2x Drobo v2/Drobo S G1/ Drobo S G2/Transporter
Drobo provides fault-tolerance, it's NOT a substitute for regular backups.
Drobo Best Practices - Official and Community-sourced.
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