Zpool stucked (freeze)

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Zpool stucked (freeze)

Post by mnos3c » Fri Mar 29, 2013 8:28 pm

I tested what happens if in a mirror pool 1 disk fail (I pull out the cable).
Degraded/Unavail then freeze when re-attached!

zpool status -v get stucked
with ctrl-t:
cmd: zpool 799 uninterruptible 0.00u 0.00s

Any idea? I need to restart?
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Disruption to a bus

Post by grahamperrin » Fri Mar 29, 2013 8:36 pm

mnos3c wrote:… zpool … uninterruptible 0.00u 0.00s …


I expect such behaviours from zfs and zpool commands if disruption is to a device on USB 2.0.

You can force closure of the Terminal window, then attempt a normal shutdown.

If boot of the Mac was verbose, then verbosity at shutdown may show a point beyond which the Mac can not progress; no halt. When that point is reached, either:

  1. force a restart (Control-Command-power); or
  2. force a stop (press and hold the power key).

Without verbosity, you'll probably get simply the grey screen for an extraordinarily long period. Wait maybe two minutes longer than you'd wait for a successful shutdown, then apply forceful method (a) or (b).

What's your environment?
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Re: Zpool stucked (freeze)

Post by mnos3c » Fri Mar 29, 2013 9:33 pm

I'm using a mbp 8,2 and 3 external fw800 disks.
Lion 10.7.4
I've got also some kernel panic but I've read in this forum that in certain situations could happen...
kernel panic syslog http://pastebin.com/UZvWVT8d
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Clarification please

Post by grahamperrin » Sat Mar 30, 2013 7:25 am

In the backtrace of that kernel panic,
com.bandlem.mac.zfs.fs(74.2)
indicates MacZFS – not ZEVO.

Have you installed, and updated, ZEVO?
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Re: Clarification please

Post by mnos3c » Sat Mar 30, 2013 7:39 am

grahamperrin wrote:In the backtrace of that kernel panic,
com.bandlem.mac.zfs.fs(74.2)
indicates MacZFS – not ZEVO.

Have you installed, and updated, ZEVO?


Yes. I first installed maczfs. Then uninstalled and then clean installed ZEVO 1.1.1
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More details please

Post by grahamperrin » Sat Mar 30, 2013 7:56 am

OK, let's ignore the kernel panic with MacZFS.

ZEVO

Outputs please from the following commands:

Code: Select all
zpool history | grep upgrade


Code: Select all
zpool list


Code: Select all
zpool status


Code: Select all
zfs list


Code: Select all
diskutil list


Code: Select all
kextstat | grep -v com.apple


– plus any other detail that may help to understand the environment. For example:

  • in which order, on the one FireWire bus, are the three devices?

Hints for your replies:

  • use the full editor
  • for legibility of monospaced text, please paste as code.

Also be aware of this:

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Re: Zpool stucked (freeze)

Post by mnos3c » Sat Mar 30, 2013 8:08 am

Code: Select all
kextstat | grep -v com.apple
Index Refs Address            Size       Wired      Name (Version) <Linked Against>
   51    0 0xffffff7f80a58000 0x46000    0x46000    at.obdev.nke.LittleSnitch (2.5.3) <7 5 4 3 1>
   90    1 0xffffff7f8078d000 0x19d000   0x19d000   com.getgreenbytes.filesystem.zfs (2012.09.14) <12 7 5 4 3 1>
   91    0 0xffffff7f8092a000 0x6000     0x6000     com.getgreenbytes.driver.zfs (2012.09.14) <90 12 7 5 4 3 1>
  119    0 0xffffff7f81ad1000 0x35000    0x35000    com.paragon-software.filesystems.ntfs (82) <7 5 4 1>
  132    3 0xffffff7f821f0000 0x42000    0x42000    org.virtualbox.kext.VBoxDrv (4.2.4) <7 5 4 3 1>
  133    0 0xffffff7f80f2c000 0x8000     0x8000     org.virtualbox.kext.VBoxUSB (4.2.4) <132 45 30 7 5 4 3 1>
  134    0 0xffffff7f80f34000 0x5000     0x5000     org.virtualbox.kext.VBoxNetFlt (4.2.4) <132 7 5 4 3 1>
  135    0 0xffffff7f81081000 0x6000     0x6000     org.virtualbox.kext.VBoxNetAdp (4.2.4) <132 5 4 1>


Other command return nothing useful because I'm without an active pool at the moment (I'm testing zevo in deep before production)
My setup:

Macbook pro 8,2 16 ram (tested ok and stable) samsung ssd for boot and 1tb samsung 5400rpm 4k in place of superdrive.
External drive with witch I crate pool:
1x2tb my book studio fw800 (first device)
1x1tb hgst 2,5" 7200rpm 4k connected with icybox dock fw800 (trough my book studio/daisy-chained)(second device)
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Re: Zpool stucked (freeze)

Post by grahamperrin » Sat Mar 30, 2013 11:36 am

Thanks … is ICY BOX IB-111StUEb-Wh the dock?

Was the pool created with MacZFS and if so, are the pool and its file system upgraded to match the versions used by ZEVO?

mnos3c wrote:… 3 external fw800 disks. …


When you hot unplug (without exporting), where in the chain is the third disk?
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Re: Zpool stucked (freeze)

Post by mnos3c » Sat Mar 30, 2013 3:27 pm

grahamperrin wrote:Thanks … is ICY BOX IB-111StUEb-Wh the dock?

- Yes.

Was the pool created with MacZFS and if so, are the pool and its file system upgraded to match the versions used by ZEVO?

- No. Everything formatted and zpooled with zevo after uninstalling maczfs.

When you hot unplug (without exporting), where in the chain is the third disk?


Last one.
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Clarification please

Post by grahamperrin » Sat Mar 30, 2013 9:02 pm

Sorry, I'm confused.

In your opening post –

in a mirror pool 1 disk fail (I pull out the cable).


– and you have three disks, the first two of which form the pool –

External drive with witch I crate pool:
1x2tb my book studio fw800 (first device)
1x1tb hgst 2,5" 7200rpm 4k connected with icybox dock fw800 (trough my book studio/daisy-chained)(second device)


– and you hot unplug (without exporting) the last disk.

Do you mean that you unplugged a third disk (the last in the chain of three) that is not part of the pool?

Please: what's the third disk? Is that, too, in a FireWire dock?
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