(2012.09.23) hibernate versus pool on USB

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(2012.09.23) hibernate versus pool on USB

Post by grahamperrin » Fri Oct 26, 2012 7:13 am

ZEVO Community Edition 1.1.1 (2012.09.23) on a MacBookPro5,2 with OS X 10.8.2, 8 GB memory.

External drive with a ZFS pool: StoreJet Transcend (0x2329).

Steps

  1. Start the computer
  2. log in
  3. connect the short fly lead (additional power) to the central USB port
  4. connect the main lead to the front USB port
  5. observe import of the pool (in my case, two volumes)
  6. hibernate the laptop
  7. wait for hibernation to take effect
  8. power key
  9. observe completion of the progress bar
  10. observe the LED on the Transcend enclosure
  11. observe the backlight of the keyboard
  12. on screen, observe the apparent ready state of the password field
  13. try to use the integral keyboard and trackpad
  14. no response to HIDs, so wait
  15. use the integral keyboard to enter the password.

Expected/desired

The ZFS volumes that were present before hibernation should be present and usable.

Actual result

The OS presents a red alert, that the disk was not ejected properly.

The computer will neither restart nor shut down. Force is required.

Screenshot and logs at http://www.wuala.com/grahamperrin/publi ... de=gallery
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Further tests

Post by grahamperrin » Sun Jan 06, 2013 6:07 am

USB

StoreJet Transcend (in the opening post) draws power from USB.

I tried with two other USB devices:

  • Kingston DataTraveler G3 (0x1643) USB flash drive
  • Seagate GoFlex Desk (0x50a5) with a separate power supply.

In all cases:

  • on first wake from hibernation, Mountain Lion presents a red alert about improper eject
  • on second wake from hibernation, the kernel panics.

FireWire 800

No problem with a LaCie 1 TB Big Disk Extreme (300797EK).

Questions

Does anyone have hibernation working with a pool where one of the drives is on USB?

If so: what model is the Mac; what make and model is the drive?
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Re: (2012.09.23) hibernate versus pool on USB

Post by grahamperrin » Wed Apr 03, 2013 2:17 am

Rewind a few months … nothing conclusive (sorry) but in a private forum, I gained the impression that problems such as this – with hibernation and USB – might be not limited to ZEVO or ZFS.

Maybe reproducible with HFS Plus.
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