[zfs-discuss] zfsboot from USB stick
Hi, Is it possible to boot Solaris via zfs boot from an USB stick? My efforts to boot Milax via zfs boot from an USB stick are not successfull until now (the kernel loads and panics with a message about not being able to mount root from /ramdisk:a) and before I continue I want to make sure that this can be done. Any pointers to docs about zfs boot are welcome. regards Bernd This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] cp -r hanged copying a directory
I don't like the sound of broken hardware :( I did the cp -r dir1 dir2 again and when it hanged I issued 'fmdump -e' like you said -- here is the output: # fmdump -e TIME CLASS fmdump: /var/fm/fmd/errlog is empty # I also checked /var/adm/messages and I didn't see anything in there either. So I don't know what else I can do to understand what's happening. Any ideas? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] cp -r hanged copying a directory
I did the cp -r dir1 dir2 again and when it hanged when its hung, can you type: iostat -xce 1 in another window and is there a 100 in the %b column? when you reset and try the cp again, and look at iostat -xce 1 on the second hang, is the same disk at 100 in %b? if all your windows are hung, does your keyboard num locks LED track the num locks key? Rob ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zfs data corruption
On Apr 27, 2008, at 4:39 PM, Carson Gaspar wrote: Ian Collins wrote: Carson Gaspar wrote: If this is possible, it's entirely undocumented... Actually, fmd's documentation is generally terrible. The sum total of configuration information is: FILES /etc/fm/fmd Fault manager configuration direc- tory Which is empty... It does look like I could write code to copy the output of fmdump -f somewhere useful if I had to. Have you tried man fmadm? http://onesearch.sun.com/search/docs/index.jsp?col=docs_enlocale=enqt=fmadmcs=falsest=11 Brings up some useful information. man fmadm has: - nothing to do with configuration (the topic) (OK, it prints the config, whatever that means, but you can't _change_ anything) - no examples of usage I stand by my statement that the fault management docs need a lot of help. I found the fmadm manpage very unhelpful as well. This CR is going to be fixed soon: 6679902 fmadm(1M) needs examples http://bugs.opensolaris.org/view_bug.do?bug_id=6679902 If you have specifics, feel free to add to the CR. eric ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS - Implementation Successes and Failures
Hi Firstly apologies for the spam if you got this email via multiple aliases. I'm trying to document a number of common scenarios where ZFS is used as part of the solution such as email server, $homeserver, RDBMS and so forth but taken from real implementations where things worked and equally importantly threw up things that needed to be avoided (even if that was the whole of ZFS!). I'm not looking to replace the Best Practices or Evil Tuning guides but to take a slightly different slant. If you have been involved in a ZFS implementation small or large and would like to discuss it either in confidence or as a referenceable case study that can be written up, I'd be grateful if you'd make contact. -- Dominic Kay http://blogs.sun.com/dom ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS - Implementation Successes and Failures
Cyrus mail-stores for UC Davis are in ZFS. Began as failure ended as success. We hit the FSYNC performance issue and our systems collapsed under user load. We could not track it down and neither could the Sun reps we contacted. Eventually I found a reference to FSYNC bug and we tried out what was then an IDR patch for it. Now I'd say it's a success, performance is good and very stable. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] ZFS - Implementation Successes and Failures
On Mon, 28 Apr 2008, Dominic Kay wrote: I'm not looking to replace the Best Practices or Evil Tuning guides but to take a slightly different slant. If you have been involved in a ZFS implementation small or large and would like to discuss it either in confidence or as a referenceable case study that can be written up, I'd be grateful if you'd make contact. Back in February I set up ZFS on a 12-disk StorageTek 2540 array and documented my experience (at that time) in the white paper available at http://www.simplesystems.org/users/bfriesen/zfs-discuss/2540-zfs-performance.pdf;. Since then I am still quite satisified. ZFS has yet to report a bad block or cause me any trouble at all. The only complaint I would have is that 'cp -r' performance is less than would be expected given the raw bandwidth capacity. Bob == Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer,http://www.GraphicsMagick.org/ ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Metadata corrupted
Were you able to fix this problem in the end? Unfortunately, no. I believe Matthew Ahrens took a look at it and couldn't find the cause or how to fix it. We had to destroy the pool and re-create it from scratch. Fortunately, this was during the ZFS testing period, and no critically important data was lost, but I am still a bit shaken by the incident. Since then we did eventually adopt ZFS, and it has been running well without further such problems for over a year now. This leads me to believe it was either a software bug, or a hardware failure that triggered a fatal condition in the software that is not resilient to error in a redundant configuration. I am sincerely hoping that this has been fixed, on purpose or by accident. Cheers, Siegfried This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] recovering data from a dettach mirrored vdev
Hi, my system (solaris b77) was physically destroyed and i loosed data saved in a zpool mirror. The only thing left is a dettached vdev from the pool. I'm aware that uberblock is gone and that i can't import the pool. But i still hope their is a way or a tool (like tct http://www.porcupine.org/forensics/) i can go too recover at least partially some data) thanks in advance for any hints. bbr This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
