Hi, I'm trying to send a zfs pool from an old freebsd 9.0 installation to a new machine with freebsd 9.1. The pool is quite heavy (about 16TB, lots of snapshots) and the receiving side keeps crashing on me. The command used to transfer (run on the old 9.0 installation): zfs send -R tank at snapshot | ssh 10.10.xx.xx zfs recv -F -d -v tank After a few hours the system stops all writing and I can't start any new processes. Processes still running like 'zpool iostat' are still working, or at least it is still reporting something. To me it looks like the filesystem just disappeared. Unfortunately I'm running root on zfs so I don't have any logs about this. The only message I sometimes find on the console are about not being able to write to swap, which is also on zfs. Do you have any ideas? I don't even know where to start. regards, Pascal
Silly question but I assume your new 9.1 system isnt running from tank at the time? ----- Original Message ----- From: "Pascal Braun, Continum" <pascal.braun at continum.net>> > I'm trying to send a zfs pool from an old freebsd 9.0 installation to a new machine with freebsd 9.1. The pool is quite heavy > (about 16TB, lots of snapshots) and the receiving side keeps crashing on me. The command used to transfer (run on the old 9.0 > installation): > zfs send -R tank at snapshot | ssh 10.10.xx.xx zfs recv -F -d -v tank > > > After a few hours the system stops all writing and I can't start any new processes. Processes still running like 'zpool iostat' > are still working, or at least it is still reporting something. To me it looks like the filesystem just disappeared. > Unfortunately I'm running root on zfs so I don't have any logs about this. > The only message I sometimes find on the console are about not being able to write to swap, which is also on zfs. > > > Do you have any ideas? I don't even know where to start. > > > regards, Pascal > > _______________________________________________ > freebsd-stable at freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org" >===============================================This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster at multiplay.co.uk.
On Wed, 29 May 2013 11:04:00 +0200, Pascal Braun, Continum <pascal.braun at continum.net> wrote:> > Hi, > > > I'm trying to send a zfs pool from an old freebsd 9.0 installation to a > new machine with freebsd 9.1. The pool is quite heavy (about 16TB, lots > of snapshots) and the receiving side keeps crashing on me. The command > used to transfer (run on the old 9.0 installation): > zfs send -R tank at snapshot | ssh 10.10.xx.xx zfs recv -F -d -v tank > > > After a few hours the system stops all writing and I can't start any new > processes. Processes still running like 'zpool iostat' are still > working, or at least it is still reporting something. To me it looks > like the filesystem just disappeared. Unfortunately I'm running root on > zfs so I don't have any logs about this. > The only message I sometimes find on the console are about not being > able to write to swap, which is also on zfs. > > > Do you have any ideas? I don't even know where to start. >Please send more information about the new server. Sometimes there are bugs found in drivers with large disks, etc. Or firmware of hardware. The contents of /var/run/dmesg.boot is interesting to a lot of people. As is the output of zpool status. As you are having trouble with swap on zfs. Is it possible to put that on a separate disk for the test? Ronald.
On Wed, May 29, 2013 at 4:04 AM, Pascal Braun, Continum <pascal.braun at continum.net> wrote:> > Hi, > > > I'm trying to send a zfs pool from an old freebsd 9.0 installation to a new machine with freebsd 9.1. The pool is quite heavy (about 16TB, lots of snapshots) and the receiving side keeps crashing on me. The command used to transfer (run on the old 9.0 installation): > zfs send -R tank at snapshot | ssh 10.10.xx.xx zfs recv -F -d -v tank > > > After a few hours the system stops all writing and I can't start any new processes. Processes still running like 'zpool iostat' are still working, or at least it is still reporting something. To me it looks like the filesystem just disappeared. Unfortunately I'm running root on zfs so I don't have any logs about this. > The only message I sometimes find on the console are about not being able to write to swap, which is also on zfs. >This could be where your problem is happening. While you can create a swap vol on ZFS, that swap vol also requires available memory from the system to perform the swap. As was suggested, try using a dedicated disk / partition as your swap volume.> > Do you have any ideas? I don't even know where to start. > > > regards, Pascal > > _______________________________________________ > freebsd-stable at freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org"-- DISCLAIMER: No electrons were maimed while sending this message. Only slightly bruised.