Mac hard resets when mounting external HD

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Re: Mac hard resets when mounting external HD

Post by collegeitdept » Wed Nov 07, 2012 5:28 pm

I downloaded this version exact:

http://zevo.getgreenbytes.com/eula.php


And didn't download anything after that... or update after.


I'm at work right now. but that should answer your question.... i did these exact steps:

Turned on Mac for first time
Followed regular setup steps
Opened Safari
Went to GetGreenbytes.com
Downloaded Zevo Community (http://zevo.getgreenbytes.com/eula.php)
Installed Zevo from downloaded disk image file
Mac restarted
Plugged in External ZFS drive.

Ran console logs
Posted them to this forum.
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Re: Mac hard resets when mounting external HD

Post by grahamperrin » Wed Nov 07, 2012 6:03 pm

When you accept the licence agreement, you get the full installer (not the smaller update).

When you get home, before you attempt to connect the troublesome drive, please either:

  1. use the ZEVO pane of System Preferences to check for updates; or
  2. visit the Announcements sub-forum to get the update.

The update from 1.1 to 1.1.1 will require a restart of the computer. Then connect the troublesome drive.

If Mountain Lion unexpectedly automatically restarts the computer (symptom of a kernel panic), please let us have the panic reports, and the most recent system.log

viewtopic.php?p=668#p668 for a reminder of where to find .panic files.

Thanks.
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Re: Mac hard resets when mounting external HD

Post by collegeitdept » Wed Nov 07, 2012 9:43 pm

Alright, I updated to Zevo 1.1.1

Plugged in the drive and it crashed.

Are getting any closer? I just got this brand new Mac and I still don't have access.

I attached numerous log files.

Please find them attached.
Attachments
All Messages.log.zip
All Messages Console Log
(34.42 KiB) Downloaded 7 times
Panic Files.zip
Panic Files
(6.76 KiB) Downloaded 8 times
system.log.zip
System Log Files
(42.48 KiB) Downloaded 7 times
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Re: Mac hard resets when mounting external HD

Post by collegeitdept » Wed Nov 07, 2012 9:43 pm

Disk Utility screenshot before Mac crashed.
Attachments
Screen Shot 2012-11-07 at 6.34.18 PM.png
Disk Utility
Screen Shot 2012-11-07 at 6.34.18 PM.png (97.24 KiB) Viewed 183 times
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Re: Mac hard resets when mounting external HD

Post by dbrady » Wed Nov 07, 2012 11:58 pm

collegeitdept wrote:I attached numerous log files.

Please find them attached.


Thanks for providing the logs. Based on the recent system log entries I would say that you are having hardware issues with the drive. The system is having trouble reading the drive. Based on your previous bus hangs I would say that there is something amiss with the host USB, the cable or the device.

Code: Select all
Nov  7 18:34:07 Administrators-Mac-mini kernel[0]: ZFSLabelScheme:probe: label 'My Book', vdev 321599232351791804
Nov  7 18:34:07 Administrators-Mac-mini kernel[0]: ZFSLabelScheme:start: 'My Book' critical mass with 1 vdev(s) (importing)
Nov  7 18:34:08 Administrators-Mac-mini kernel[0]: zfsx_kev_importpool:'My Book' (2802504110836664177)
Nov  7 18:34:08 Administrators-Mac-mini kernel[0]: zfsx_vdm_open: 'My Book' disk1s2
Nov  7 18:34:16 Administrators-Mac-mini kernel[0]: USBF:   123.287   AppleUSBEHCI[0xffffff801864e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 4, EP: 0)
Nov  7 18:34:22 Administrators-Mac-mini kernel[0]: USBF:   129.291   AppleUSBEHCI[0xffffff801864e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 4, EP: 0)
Nov  7 18:34:23 Administrators-Mac-mini kernel[0]: USBF:   129.694   The USB Family found a device at  port 3 of hub @ 0xfa100000 with a bad USB device descriptor (0x0, 0x0 )
Nov  7 18:34:28 Administrators-Mac-mini kernel[0]: USBF:   135.297   AppleUSBEHCI[0xffffff801864e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)
Nov  7 18:34:34 Administrators-Mac-mini kernel[0]: USBF:   141.302   AppleUSBEHCI[0xffffff801864e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)
Nov  7 18:34:40 Administrators-Mac-mini kernel[0]: USBF:   147.306   AppleUSBEHCI[0xffffff801864e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfa, timing out! (Addr: 0, EP: 0)


The panic is likely due to too many backed up IOs that never complete.

Is the drive making any unusual noises? Can you hear it accessing the device?
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recent points condensed, and a question for Don

Post by grahamperrin » Thu Nov 08, 2012 2:23 am

Thanks to Don for posting (perfectly timed).

Equal thanks to collegeitdept for providing the files (ideal at this stage). Hopefully not jumping the gun: I think that we're extremely close to saying – with almost complete certainty – where the problem lies. A milestone, after which there'll be advice on how best to attempt retrieval of data.

dbrady wrote:… something amiss with the host USB, the cable or the device. …


If host USB = the USB hardware part of the Mac, maybe not amiss there. There's very recently a new Mac Mini.

A new USB cable has been used at least once with the suspect Western Digital device.

Technical, for Don

Not necessarily for this case, but for similar cases where a drive hardware issue is suspected: would it be worth trying with a virtual machine (probably without ZEVO) – maybe PC-BSD™ in VirtualBox?

In theory we might expect a guest (virtual) machine to have no greater control, over the external USB device, than the host (physical) machine running OS X. In practice … I wonder.
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Re: Mac hard resets when mounting external HD

Post by collegeitdept » Thu Nov 08, 2012 3:33 am

Hello,

So what are my options? The drive does not make any unusual strange noises. When talking about excessive IO problems... I do remember last month before the drive had problems that power to the outlet went out (power socket controlled by a light switch) while copying a large file to the drive.

Does this mean all my data is gone? What can I do?

If it's the USB controller... can I break open the case and take out the hard drive and buy a eSATA to USB converter? Will that work and allow me to retrieve the data? Remember, if this is the case - I cannot go back... the case is forever broken...

Can this work? Is the usb controller in the case itself or on the hard drive? And if it's on the hard drive itself... does that mean my data is lost?
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Re: Mac hard resets when mounting external HD

Post by collegeitdept » Thu Nov 08, 2012 3:35 am

"The panic is likely due to too many backed up IOs that never complete."

Is there way to clear out the backed up IOs... is there like a queue or something?? Is there a way to force it? Sorry, again I'm not a computer engineer - but in need of my data please??
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disk docking stations and the like

Post by grahamperrin » Thu Nov 08, 2012 10:25 am

collegeitdept wrote:… If it's the USB controller... can I break open the case and take out the hard drive and buy a eSATA to USB converter? …


I thought of something like that a few pages back, but said nothing because the thing I had in mind – a docking station - might only add to frustration, if you spend money on one then find it not completely reliable.

(The model that I purchased, identical to one that's used at my office, I found too troublesome for most purposes. At first I thought it was just me or my Mac, or the disks that I was trying to use with the station. But a few weeks later at the office, other people (users of Windows etc.) were terribly critical of the same model. So it wasn't just me.)

… last month before the drive had problems that power to the outlet went out (power socket controlled by a light switch) while copying a large file to the drive. …


That's very useful to know – thanks. The on-disk format of ZFS should be resilient to such things. So I question whether the drive and disk are resilient to power losses such as that.

Did the drive ever work after that loss of power whilst writing?

Is that power supply a lighting circuit?

Might there sometimes be power surges?
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Re: Mac hard resets when mounting external HD

Post by collegeitdept » Thu Nov 08, 2012 4:58 pm

It did work afterwards... and then accidentally someone turned of the light switch which cut off power a few days afterwards... sorry I'm just starting to remember.

If do buy one of those SATA to USB things.... (i guess it's their own external case without the drive).... will it work? Or is the USB controller on the drive itself?

Where does the problem lie? The SATA connector within the drive, or USB within the external case?
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