[zfs-macos] Weird I/O block
Greetings, All! I migrated over to O3X since MacZFS didn't work with Yosemite. Now I have encountered a problem. I have already posted about it over at the O3X forum, but no-one there seems to know what to do and/or be interested. The array array_2 no longer shows its content, wether in Finder or in Terminal. I tried the zpool scrub command, to see if that would resolve the problem. I got this return: zpool scrub array_2 cannot scrub array_2: pool I/O is currently suspended Some more info: sudo zpool status -v array_2 pool: array_2 state: ONLINE status: One or more devices are faulted in response to IO failures. action: Make sure the affected devices are connected, then run 'zpool clear'. see: http://zfsonlinux.org/msg/ZFS-8000-HC scan: resilvered 12,5K in 0h0m with 0 errors on Mon Nov 3 18:00:02 2014 config: NAME STATE READ WRITE CKSUM array_2 ONLINE 2 7 0 raidz2-0 ONLINE 6 30 0 disk11s2 ONLINE 3 26 0 disk12s2 ONLINE 4 22 0 disk13s2 ONLINE 4 22 0 disk14s2 ONLINE 4 22 0 disk15s2 ONLINE 3 22 0 disk16s2 ONLINE 3 28 0 disk17s2 ONLINE 3 26 0 disk18s2 ONLINE 3 24 0 errors: List of errors unavailable (insufficient privileges) Even with sudo I am not allowed to view the error list. Hmmm... after following the supplied link, I ran zpool clear: sudo zpool clear array_2 cannot clear errors for array_2: I/O error So... It didn't work. What do I do now? Any suggestions are greatly appreciated. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [zfs-macos] Weird I/O block
Cable connection failure. Jason Belec Sent from my It's an iPod, a Phone, and an Internet Device... On Nov 11, 2014, at 12:23 PM, Anders Wallén anders_wal...@mac.com wrote: Greetings, All! I migrated over to O3X since MacZFS didn't work with Yosemite. Now I have encountered a problem. I have already posted about it over at the O3X forum, but no-one there seems to know what to do and/or be interested. The array array_2 no longer shows its content, wether in Finder or in Terminal. I tried the zpool scrub command, to see if that would resolve the problem. I got this return: zpool scrub array_2 cannot scrub array_2: pool I/O is currently suspended Some more info: sudo zpool status -v array_2 pool: array_2 state: ONLINE status: One or more devices are faulted in response to IO failures. action: Make sure the affected devices are connected, then run 'zpool clear'. see: http://zfsonlinux.org/msg/ZFS-8000-HC scan: resilvered 12,5K in 0h0m with 0 errors on Mon Nov 3 18:00:02 2014 config: NAME STATE READ WRITE CKSUM array_2 ONLINE 2 7 0 raidz2-0 ONLINE 6 30 0 disk11s2 ONLINE 3 26 0 disk12s2 ONLINE 4 22 0 disk13s2 ONLINE 4 22 0 disk14s2 ONLINE 4 22 0 disk15s2 ONLINE 3 22 0 disk16s2 ONLINE 3 28 0 disk17s2 ONLINE 3 26 0 disk18s2 ONLINE 3 24 0 errors: List of errors unavailable (insufficient privileges) Even with sudo I am not allowed to view the error list. Hmmm... after following the supplied link, I ran zpool clear: sudo zpool clear array_2 cannot clear errors for array_2: I/O error So... It didn't work. What do I do now? Any suggestions are greatly appreciated. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [zfs-macos] Weird I/O block
On another note, never scrub if your not sure what's wrong. A little more detail. I have recently seen what your encountering several times. It was at least one faulty cable in each case once it was two. Once fixed everything was perfect. Yes the -v fails, been that way for awhile now concerning permissions. Jason Belec Sent from my It's an iPod, a Phone, and an Internet Device... On Nov 11, 2014, at 1:11 PM, BelecMartin jasonbe...@belecmartin.com wrote: Cable connection failure. Jason Belec Sent from my It's an iPod, a Phone, and an Internet Device... On Nov 11, 2014, at 12:23 PM, Anders Wallén anders_wal...@mac.com wrote: Greetings, All! I migrated over to O3X since MacZFS didn't work with Yosemite. Now I have encountered a problem. I have already posted about it over at the O3X forum, but no-one there seems to know what to do and/or be interested. The array array_2 no longer shows its content, wether in Finder or in Terminal. I tried the zpool scrub command, to see if that would resolve the problem. I got this return: zpool scrub array_2 cannot scrub array_2: pool I/O is currently suspended Some more info: sudo zpool status -v array_2 pool: array_2 state: ONLINE status: One or more devices are faulted in response to IO failures. action: Make sure the affected devices are connected, then run 'zpool clear'. see: http://zfsonlinux.org/msg/ZFS-8000-HC scan: resilvered 12,5K in 0h0m with 0 errors on Mon Nov 3 18:00:02 2014 config: NAME STATE READ WRITE CKSUM array_2 ONLINE 2 7 0 raidz2-0 ONLINE 6 30 0 disk11s2 ONLINE 3 26 0 disk12s2 ONLINE 4 22 0 disk13s2 ONLINE 4 22 0 disk14s2 ONLINE 4 22 0 disk15s2 ONLINE 3 22 0 disk16s2 ONLINE 3 28 0 disk17s2 ONLINE 3 26 0 disk18s2 ONLINE 3 24 0 errors: List of errors unavailable (insufficient privileges) Even with sudo I am not allowed to view the error list. Hmmm... after following the supplied link, I ran zpool clear: sudo zpool clear array_2 cannot clear errors for array_2: I/O error So... It didn't work. What do I do now? Any suggestions are greatly appreciated. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[zfs-macos] another ZFS (on OSX) success story
Hey folks, It’s always useful to be able to point new users to how zfs benefits them, so here’s another one, both the flexibility of datasets, as well as relying on zpool scrub to ensure data integrity. About 2 weeks ago, my laptop blew up its GPU (6th time this year) so it was in for repair. This happens so often, I just switch to the nearest other machine and grab my latest replicated datasets for whatever project I’m working on while they repair it. However after a few strange clicks starting on Sunday, that 2nd machine started to have problems too. It failed to boot from OSX sometimes, and eventually I could only get it to work from internet recovery boot. Such fun. I was able to confirm my data was OK, by running zpool scrub again after booting via FreeBSD — mfsBSD[1] is excellent for this. Of course, I had no way of knowing if the HFS+ partition used for OSX itself, was corrupt or not, nor knowing if the time machine backups also had silent corruption. Apple’s disk repair didn’t report any issues, but a 3rd party smart utility showed a high, and increasing, rate of failed sectors and unrecoverable reads. OSX still wouldn’t boot, so I booted up FreeBSD and did a final ‘zfs send’ to my remote server. I co-opted a netbook from a friend, and continued working over ssh for the rest of the day, while my main hardware was in for repair. replicated zfs datasets FTW again. Once the laptop hardware was repaired, recovery was as simple as pulling back the newer snapshots from the FreeBSD server, and I was back up and running in minutes. I spent more time organising the repairs than managing data recovery. So many many thanks to lundman, brendon, ilovezfs, Björn and others for keeping this ship up and running over the years. A+, Dave — sent from my Couch [1]: http://mfsbsd.vx.sk/ [2]: my setup — running very recent zfsonosx builds from source Feb 2011 MacBook Pro 15”, dual SSD, 16GB RAM Jan 2013 iMac 27”, 3TB disk, 32GB RAM — FreeBSD 10.1-BETA3-p1 (living on the edge) FreeBSD 8 core server, 3TB disks, mirrored zpool, 32GB ECC RAM -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [zfs-macos] another ZFS (on OSX) success story
Yeah! Jason Belec Sent from my It's an iPod, a Phone, and an Internet Device... On Nov 11, 2014, at 3:27 PM, Dave Cottlehuber d...@jsonified.com wrote: Hey folks, It’s always useful to be able to point new users to how zfs benefits them, so here’s another one, both the flexibility of datasets, as well as relying on zpool scrub to ensure data integrity. About 2 weeks ago, my laptop blew up its GPU (6th time this year) so it was in for repair. This happens so often, I just switch to the nearest other machine and grab my latest replicated datasets for whatever project I’m working on while they repair it. However after a few strange clicks starting on Sunday, that 2nd machine started to have problems too. It failed to boot from OSX sometimes, and eventually I could only get it to work from internet recovery boot. Such fun. I was able to confirm my data was OK, by running zpool scrub again after booting via FreeBSD — mfsBSD[1] is excellent for this. Of course, I had no way of knowing if the HFS+ partition used for OSX itself, was corrupt or not, nor knowing if the time machine backups also had silent corruption. Apple’s disk repair didn’t report any issues, but a 3rd party smart utility showed a high, and increasing, rate of failed sectors and unrecoverable reads. OSX still wouldn’t boot, so I booted up FreeBSD and did a final ‘zfs send’ to my remote server. I co-opted a netbook from a friend, and continued working over ssh for the rest of the day, while my main hardware was in for repair. replicated zfs datasets FTW again. Once the laptop hardware was repaired, recovery was as simple as pulling back the newer snapshots from the FreeBSD server, and I was back up and running in minutes. I spent more time organising the repairs than managing data recovery. So many many thanks to lundman, brendon, ilovezfs, Björn and others for keeping this ship up and running over the years. A+, Dave — sent from my Couch [1]: http://mfsbsd.vx.sk/ [2]: my setup — running very recent zfsonosx builds from source Feb 2011 MacBook Pro 15”, dual SSD, 16GB RAM Jan 2013 iMac 27”, 3TB disk, 32GB RAM — FreeBSD 10.1-BETA3-p1 (living on the edge) FreeBSD 8 core server, 3TB disks, mirrored zpool, 32GB ECC RAM -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [zfs-macos] another ZFS (on OSX) success story
On 11 Nov 2014, at 20:27, Dave Cottlehuber d...@jsonified.com wrote: Hey folks, It’s always useful to be able to point new users to how zfs benefits them, so here’s another one, both the flexibility of datasets, as well as relying on zpool scrub to ensure data integrity. About 2 weeks ago, my laptop blew up its GPU (6th time this year) so it was in for repair. This happens so often, I just switch to the nearest other machine and grab my latest replicated datasets for whatever project I’m working on while they repair it. However after a few strange clicks starting on Sunday, that 2nd machine started to have problems too. It failed to boot from OSX sometimes, and eventually I could only get it to work from internet recovery boot. Such fun. I was able to confirm my data was OK, by running zpool scrub again after booting via FreeBSD — mfsBSD[1] is excellent for this. Of course, I had no way of knowing if the HFS+ partition used for OSX itself, was corrupt or not, nor knowing if the time machine backups also had silent corruption. Apple’s disk repair didn’t report any issues, but a 3rd party smart utility showed a high, and increasing, rate of failed sectors and unrecoverable reads. OSX still wouldn’t boot, so I booted up FreeBSD and did a final ‘zfs send’ to my remote server. I co-opted a netbook from a friend, and continued working over ssh for the rest of the day, while my main hardware was in for repair. replicated zfs datasets FTW again. Once the laptop hardware was repaired, recovery was as simple as pulling back the newer snapshots from the FreeBSD server, and I was back up and running in minutes. I spent more time organising the repairs than managing data recovery. Great news :) So many many thanks to lundman, brendon, ilovezfs, Björn and others for keeping this ship up and running over the years. Yes, especially thanks from me too to all those that have kept ZFS on OSX burning so brightly. Alex -- --- You received this message because you are subscribed to the Google Groups zfs-macos group. To unsubscribe from this group and stop receiving emails from it, send an email to zfs-macos+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
