Now where do we go?

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Re: Now where do we go?

Post by ilovezfs » Wed Oct 02, 2013 2:49 am

ylluminate wrote:@ilovezfs who are you on the maczfs mailing list?

ylluminate, I haven't used that mailing list. Come see me in IRC where I'm ilovezfs. #mac-zfs
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Re: Now where do we go?

Post by lundman » Wed Oct 02, 2013 2:53 am

I looked at MacZFS before I started the ZOL port, and there was things in there I didn't like. So I felt a completely new port would be more fun, than trying to get the old to work with newer sources. I used MacZFS as a guide for the Darwin equivalent calls needed to make the SPL layer. So that ZFS sources can be platform agnostic. We have already merged with upstream a couple of times without much hassle, thanks to that.

I personally never ran MacZFS nor was I part of the original work. Is the new port production ready? No, probably not, but for vanilla usage it will probably stay up. You wont lose data, but you might panic. The question is what you want to happen next? Will ZEVO produce a Mavericks build? What about the next OSX version? Will you run some pools with the new code, risk panics, but eventually a stable product.. Should we demand money so people take the new project seriously? Interesting questions :)

I sincerely hope getgreenbytes can sell their ZEVO product. It would pain me to think of ZEVO of just gathering dust on a shelf. I was hoping to convince them to at least consider open sourcing it rather than letting it fade, I/we would take good care of it. But alas, I have been unable to chat to them so far.
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Re: Now where do we go?

Post by ylluminate » Wed Oct 02, 2013 11:10 am

@ilovezfs I spend a good amount of time on IRC, but I don't wander in that channel anymore. I sadly had some very rude experiences there with a couple of folks who just wanted to be downright belligerent, condescending and argumentative previously. I can hold my own with a background in computer science and having done a good deal of work in C and OS level programming, but I don't have time for flat out jerkish behavior and so I've stayed out of there.
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Re: Now where do we go?

Post by ilovezfs » Wed Oct 02, 2013 11:31 am

ylluminate wrote:@ilovezfs I spend a good amount of time on IRC, but I don't wander in that channel anymore. I sadly had some very rude experiences there with a couple of folks who just wanted to be downright belligerent, condescending and argumentative previously. I can hold my own with a background in computer science and having done a good deal of work in C and OS level programming, but I don't have time for flat out jerkish behavior and so I've stayed out of there.

ylluminate, I think you'll find it's an entirely different set of people now.
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ZFS-OSX: unanswered questions in the MacZFS-devel area

Post by grahamperrin » Wed Oct 02, 2013 1:03 pm

lundman, thanks for your sincerity.

Back to this – viewtopic.php?p=5367#p5367 – with links to two unanswered questions in the MacZFS-devel group, I know that you do use the MacZFS groups for discussion of MacZFS.

In irc://chat.freenode.net/#maczfs recently you began answering one of the two questions. In an ideal world I should have stayed but the rudeness (not from you) drove me away and I don't image returning to that channel in the near future. I'll plead again for answers to those ZFS-OSX questions; can you post – as replies to those questions – in the Google group? Priority please to the question about USB.

Thanks again.
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Re: Now where do we go?

Post by ylluminate » Wed Oct 02, 2013 1:37 pm

Good to hear @ilovezfs. I was certainly put off by the tone of the dialogue here and it seemed as though the problematic communications that left maczfs in foggy cloud continued to pervade the scene. I sincerely hope that that has changed as it destroyed my interest in maczfs previously and further involvement.
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Re: Now where do we go?

Post by grahamperrin » Fri Oct 11, 2013 10:52 am

lundman wrote:… MacZFS … Is the new port production ready? No, probably not, but for vanilla usage it will probably stay up. You wont lose data, but you might panic. …


Following my most recent test of ZFS-OSX I found it necessary to roll back all file systems within a pool.

For me this is not dataloss, because shortly before the test:

  • I performed snapshots, and backups of those snapshots, with ZEVO
  • I prepared myself for the possibility of rollback (of losing everything more recent than those snapshots).

Details – in the MacZFS-devel discussion group

OpenZFS ZFS-OSX (osx.zfs-signed-20131011.dmg): testing

Please note

My use case can not be described as vanilla. It's a relatively harsh approach to testing.

I do encourage other people to test ZFS-OSX. In the OpenZFS wiki: http://www.open-zfs.org/wiki/MacZFS
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Re: Now where do we go?

Post by ilovezfs » Fri Oct 11, 2013 4:34 pm

This was likely a corruption of your ZIL.

Similar issues and solutions described here:

https://groups.google.com/a/zfsonlinux. ... D83Q1GR98k
https://github.com/zfsonlinux/zfs/issues/527
https://forums.oracle.com/thread/2295691

Of course since ZEVO is closed source, there is currently no way to add something like zil_replay_disable=1 or to entirely disable ASSERTs.

You can resume testing of the OpenZFS based version of MacZFS now that you have dealt with your ZIL issue, as whatever other issues you encountered are likely entirely unrelated to the ZIL corruption, but will not resolve themselves by osmosis. In particular, you need to run

Code: Select all
sysctl -w zfs.vnops_osx_debug=1


and provide the your Console logs.
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Re: Now where do we go?

Post by milli » Mon Oct 28, 2013 10:30 am

FWIW, after Mavericks upgrade, I've been able to connect ZFS drives (mine were all external USB3) to a Linux virtual machine (specifically, Ubuntu 13.10) with ZFSonLinux installed (v.0.6.2) running in Parallels Desktop 9, and though the pool is reported as an old version, "zpool import"ed fine and I pulled off all the files I cared about.

Really sad that ZEVO (all versions?) seems to be dead. Even more sad that it was the closest thing OS X had to real integrated ZFS support, but the writing has been on the wall for some time (over a year with no updates? Bold lettering on that wall...)
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Re: Now where do we go?

Post by ilovezfs » Mon Oct 28, 2013 11:04 am

milli wrote:FWIW, after Mavericks upgrade, I've been able to connect ZFS drives (mine were all external USB3) to a Linux virtual machine (specifically, Ubuntu 13.10) with ZFSonLinux installed (v.0.6.2) running in Parallels Desktop 9, and though the pool is reported as an old version, "zpool import"ed fine and I pulled off all the files I cared about.


For others who go down the VM path:
viewtopic.php?f=4&t=2178&p=4834
viewtopic.php?f=4&t=2203
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