Re[2]: [zfs-discuss] Migrating a pool
Hello Matthew, Thursday, March 29, 2007, 3:29:36 AM, you wrote: MA> Constantin Gonzalez wrote: >> What is the most elegant way of migrating all filesystems to the new pool, >> including snapshots? >> >> Can I do a master snapshot of the whole pool, including sub-filesystems and >> their snapshots, then send/receive them to the new pool? >> >> Or do I have to write a script that will individually snapshot all >> filesystems >> within my old pool, then run a send (-i) orgy? MA> Unfortunately, you will need to make/find a script to do the various MA> 'zfs send -i' to send each snapshot of each filesystem. MA> I am working on 'zfs send -r', which will make this a snap: MA> # zfs snapshot -r [EMAIL PROTECTED] MA> # zfs send -r [EMAIL PROTECTED] | zfs recv ... MA> You'll also be able to do 'zfs send -r -i @yesterday [EMAIL PROTECTED]'. Will it work serially (one fs incremental at the time) or in parallel or maybe it will traverse the pool in such a clever way that pool will be scanned sequentially and if a block has to be sent it will + some form of parallelism (read-ahead, etc.) - ok, i'm dreaming :)) -- Best regards, Robertmailto:[EMAIL PROTECTED] http://milek.blogspot.com ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Migrating a pool
Hi Matt, cool, thank you for doing this! I'll still write my script since today my two shiny new 320GB USB disks will arrive :). I'll add to that the feature to first send all current snapshots, then bring down the services that depend on the filesystem, unmount the old fs, send a final incremental snapshot then zfs set mountpoint=x to the new filesystem, then bring up the services again. Hope this works as I imagine. Cheers, Constantin Matthew Ahrens wrote: > Constantin Gonzalez wrote: >> What is the most elegant way of migrating all filesystems to the new >> pool, >> including snapshots? >> >> Can I do a master snapshot of the whole pool, including >> sub-filesystems and >> their snapshots, then send/receive them to the new pool? >> >> Or do I have to write a script that will individually snapshot all >> filesystems >> within my old pool, then run a send (-i) orgy? > > Unfortunately, you will need to make/find a script to do the various > 'zfs send -i' to send each snapshot of each filesystem. > > I am working on 'zfs send -r', which will make this a snap: > > # zfs snapshot -r [EMAIL PROTECTED] > # zfs send -r [EMAIL PROTECTED] | zfs recv ... > > You'll also be able to do 'zfs send -r -i @yesterday [EMAIL PROTECTED]'. > > See RFE 6421958. > > --matt -- Constantin GonzalezSun Microsystems GmbH, Germany Platform Technology Group, Global Systems Engineering http://www.sun.de/ Tel.: +49 89/4 60 08-25 91 http://blogs.sun.com/constantin/ Sitz d. Ges.: Sun Microsystems GmbH, Sonnenallee 1, 85551 Kirchheim-Heimstetten Amtsgericht Muenchen: HRB 161028 Geschaeftsfuehrer: Marcel Schneider, Wolfgang Engels, Dr. Roland Boemer Vorsitzender des Aufsichtsrates: Martin Haering ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Migrating a pool
Constantin Gonzalez wrote: What is the most elegant way of migrating all filesystems to the new pool, including snapshots? Can I do a master snapshot of the whole pool, including sub-filesystems and their snapshots, then send/receive them to the new pool? Or do I have to write a script that will individually snapshot all filesystems within my old pool, then run a send (-i) orgy? Unfortunately, you will need to make/find a script to do the various 'zfs send -i' to send each snapshot of each filesystem. I am working on 'zfs send -r', which will make this a snap: # zfs snapshot -r [EMAIL PROTECTED] # zfs send -r [EMAIL PROTECTED] | zfs recv ... You'll also be able to do 'zfs send -r -i @yesterday [EMAIL PROTECTED]'. See RFE 6421958. --matt ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Migrating a pool
Hi, > Today I have about half a dozen filesystems in the old pool plus dozens of > snapshots thanks to Tim Bray's excellent SMF snapshotting service. I'm sorry I mixed up Tim's last name. The fine guy who wrote the SMF snapshot service is Tim Foster. And here's the link: http://blogs.sun.com/timf/entry/zfs_automatic_snapshots_0_8 There doesn't seem to be an easy answer to the original question of how to migrate a complete pool. Writing a script with a snapshot send/receive party seems to be the only approach. I wish I could zfs snapshot pool then zfs send pool | zfs receive dest and all blocks would be transferred as they are, including all embedded snapshots. Is that already an RFE? Best regards, Constantin -- Constantin GonzalezSun Microsystems GmbH, Germany Platform Technology Group, Global Systems Engineering http://www.sun.de/ Tel.: +49 89/4 60 08-25 91 http://blogs.sun.com/constantin/ Sitz d. Ges.: Sun Microsystems GmbH, Sonnenallee 1, 85551 Kirchheim-Heimstetten Amtsgericht Muenchen: HRB 161028 Geschaeftsfuehrer: Marcel Schneider, Wolfgang Engels, Dr. Roland Boemer Vorsitzender des Aufsichtsrates: Martin Haering ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Migrating a pool
Hi, soon it'll be time to migrate my patchwork pool onto a real pair of mirrored (albeit USB-based) external disks. Today I have about half a dozen filesystems in the old pool plus dozens of snapshots thanks to Tim Bray's excellent SMF snapshotting service. What is the most elegant way of migrating all filesystems to the new pool, including snapshots? Can I do a master snapshot of the whole pool, including sub-filesystems and their snapshots, then send/receive them to the new pool? Or do I have to write a script that will individually snapshot all filesystems within my old pool, then run a send (-i) orgy? Best regards, Constantin -- Constantin GonzalezSun Microsystems GmbH, Germany Platform Technology Group, Global Systems Engineering http://www.sun.de/ Tel.: +49 89/4 60 08-25 91 http://blogs.sun.com/constantin/ Sitz d. Ges.: Sun Microsystems GmbH, Sonnenallee 1, 85551 Kirchheim-Heimstetten Amtsgericht Muenchen: HRB 161028 Geschaeftsfuehrer: Marcel Schneider, Wolfgang Engels, Dr. Roland Boemer Vorsitzender des Aufsichtsrates: Martin Haering ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
