What''s the best way to backup a zfs filesystem to tape, where the size of the filesystem is larger than what can fit on a single tape? ufsdump handles this quite nicely. Is there a similar backup program for zfs? Or a general tape management program that can take data from a stream and split it across tapes reliably with appropriate headers to ease tape management and restore?
On Fri, 14 Mar 2008, Bill Shannon wrote:> What''s the best way to backup a zfs filesystem to tape, where the size > of the filesystem is larger than what can fit on a single tape? > ufsdump handles this quite nicely. Is there a similar backup program > for zfs? Or a general tape management program that can take data fromPreviously it was suggested on this list to use a special version of tar called ''star'' (ftp://ftp.berlios.de/pub/star). Bob =====================================Bob Friesenhahn bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Bob Friesenhahn wrote:> On Fri, 14 Mar 2008, Bill Shannon wrote: > >> What''s the best way to backup a zfs filesystem to tape, where the size >> of the filesystem is larger than what can fit on a single tape? >> ufsdump handles this quite nicely. Is there a similar backup program >> for zfs? Or a general tape management program that can take data from > > Previously it was suggested on this list to use a special version of > tar called ''star'' (ftp://ftp.berlios.de/pub/star).Suggested by the rather biased (and extremely opinionated) author of ''star''. Who, by the way, never out-and-out admitted that star does _not_ support ZFS ACLs (which it doesn''t). Sadly I don''t now of any non-commercial backup solution for ZFS that supports ACLs. Even rsync doesn''t support them, due to Sun''s choice to use their own unique ACL API. -- Carson
Carson Gaspar wrote:> Bob Friesenhahn wrote: > >> On Fri, 14 Mar 2008, Bill Shannon wrote: >> >> >>> What''s the best way to backup a zfs filesystem to tape, where the size >>> of the filesystem is larger than what can fit on a single tape? >>> ufsdump handles this quite nicely. Is there a similar backup program >>> for zfs? Or a general tape management program that can take data from >>> >> Previously it was suggested on this list to use a special version of >> tar called ''star'' (ftp://ftp.berlios.de/pub/star). >> > > Suggested by the rather biased (and extremely opinionated) author of > ''star''. Who, by the way, never out-and-out admitted that star does _not_ > support ZFS ACLs (which it doesn''t). > > Sadly I don''t now of any non-commercial backup solution for ZFS that > supports ACLs.That is simply not true. Legato (EMC) Networker 7.4 does a perfect job of capturing the ZFS ACL''s Just to make sure, I just performed a test recover of a directory where we use a complicated set of NFS4 style ACL''s, and they were preserved exactly.> Even rsync doesn''t support them, due to Sun''s choice to > use their own unique ACL API. >I commend Sun''s choice of NFS v4 ACLs. This is the only way to ensure CIFS compatibility, and it is the way the industry will be moving. Jon -- - _____/ _____/ / - Jonathan Loran - - - / / / IT Manager - - _____ / _____ / / Space Sciences Laboratory, UC Berkeley - / / / (510) 643-5146 jloran at ssl.berkeley.edu - ______/ ______/ ______/ AST:7731^29u18e3 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20080314/2359a0ab/attachment.html>
zfs-discuss-bounces at opensolaris.org wrote on 03/14/2008 04:48:47 PM:> > > Carson Gaspar wrote: > Bob Friesenhahn wrote: > > On Fri, 14 Mar 2008, Bill Shannon wrote: > > > What''s the best way to backup a zfs filesystem to tape, where the size > of the filesystem is larger than what can fit on a single tape? > ufsdump handles this quite nicely. Is there a similar backup program > for zfs? Or a general tape management program that can take data from > > Previously it was suggested on this list to use a special version of > tar called ''star'' (ftp://ftp.berlios.de/pub/star). > > > Suggested by the rather biased (and extremely opinionated) author of > ''star''. Who, by the way, never out-and-out admitted that star does _not_ > support ZFS ACLs (which it doesn''t). > > Sadly I don''t now of any non-commercial backup solution for ZFS that > supports ACLs. > > That is simply not true. Legato (EMC) Networker 7.4 does a perfect > job of capturing the ZFS ACL''s Just to make sure, I just performed > a test recover of a directory where we use a complicated set of NFS4 > style ACL''s, and they were preserved exactly.Netbackup 6.5 does too.> Even rsync doesn''t support them, due to Sun''s choice to > use their own unique ACL API. > > I commend Sun''s choice of NFS v4 ACLs. This is the only way to > ensure CIFS compatibility, and it is the way the industry will be moving.Seconded, although I regret that there was not more of a push to standardize the interfaces with other vendors.
Carson Gaspar <carson at taltos.org> wrote:> Bob Friesenhahn wrote: > > On Fri, 14 Mar 2008, Bill Shannon wrote: > > > >> What''s the best way to backup a zfs filesystem to tape, where the size > >> of the filesystem is larger than what can fit on a single tape? > >> ufsdump handles this quite nicely. Is there a similar backup program > >> for zfs? Or a general tape management program that can take data from > > > > Previously it was suggested on this list to use a special version of > > tar called ''star'' (ftp://ftp.berlios.de/pub/star). > > Suggested by the rather biased (and extremely opinionated) author of > ''star''. Who, by the way, never out-and-out admitted that star does _not_ > support ZFS ACLs (which it doesn''t). > > Sadly I don''t now of any non-commercial backup solution for ZFS that > supports ACLs. Even rsync doesn''t support them, due to Sun''s choice to > use their own unique ACL API.Well, I believe that the ZFS ACLs are a secondary problem. star supports ACLs already and the problem was that at the time when I was ready to add ZFS ACLs, the ACL support library on Solaris was not useful for star. Now I am waiting for the star integration before I add support for ZFS ACLs. J?rg -- EMail:joerg at schily.isdn.cs.tu-berlin.de (home) J?rg Schilling D-13353 Berlin js at cs.tu-berlin.de (uni) schilling at fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
Hello Jonathan, Friday, March 14, 2008, 9:48:47 PM, you wrote: > Carson Gaspar wrote: Bob Friesenhahn wrote: On Fri, 14 Mar 2008, Bill Shannon wrote: What''s the best way to backup a zfs filesystem to tape, where the size of the filesystem is larger than what can fit on a single tape? ufsdump handles this quite nicely. Is there a similar backup program for zfs? Or a general tape management program that can take data from Previously it was suggested on this list to use a special version of tar called ''star'' ftp://ftp.berlios.de/pub/star). Suggested by the rather biased (and extremely opinionated) author of ''star''. Who, by the way, never out-and-out admitted that star does _not_ support ZFS ACLs (which it doesn''t). Sadly I don''t now of any non-commercial backup solution for ZFS that supports A That is simply not true. Legato (EMC) Networker 7.4 does a perfect job of capturing the ZFS ACL''s Just to make sure, I just performed a test recover of a directory where we use a complicated set of NFS4 style ACL''s, and they were preserved exactly. If you look closely you''ll see he wrote "non-comercial backup solution". Unless I miss something Legate and Netbackup (another poster) are commercial. -- Best regards, Robert Milkowski mailto:milek@task.gda.pl http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Robert Milkowski wrote:> > Hello Jonathan, > > > Friday, March 14, 2008, 9:48:47 PM, you wrote: > > > > > > > > > > Carson Gaspar wrote: > > Bob Friesenhahn wrote: > > On Fri, 14 Mar 2008, Bill Shannon wrote: > > What''s the best way to backup a zfs filesystem to tape, where the size > of the filesystem is larger than what can fit on a single tape? > ufsdump handles this quite nicely. Is there a similar backup program > for zfs? Or a general tape management program that can take data from > > Previously it was suggested on this list to use a special version of > tar called ''star'' ftp://ftp.berlios.de/pub/star). > > Suggested by the rather biased (and extremely opinionated) author of > ''star''. Who, by the way, never out-and-out admitted that star does > _not_ support ZFS ACLs (which it doesn''t). Sadly I don''t now of any > non-commercial backup solution for ZFS that supports A > > > That is simply not true. Legato (EMC) Networker 7.4 does a perfect > job of capturing the ZFS ACL''s Just to make sure, I just performed a > test recover of a directory where we use a complicated set of NFS4 > style ACL''s, and they were preserved exactly. > > > > > If you look closely you''ll see he wrote "non-comercial backup > solution". Unless I miss something Legate and Netbackup (another > poster) are commercial. > >Right you are. I read his post wrong. Networker and NetBackup are very pricey commercial packages. Thanks Jon -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20080314/8c704de8/attachment.html>
On Mar 14, 2008, at 3:28 PM, Bill Shannon wrote:> What''s the best way to backup a zfs filesystem to tape, where the size > of the filesystem is larger than what can fit on a single tape? > ufsdump handles this quite nicely. Is there a similar backup program > for zfs? Or a general tape management program that can take data from > a stream and split it across tapes reliably with appropriate headers > to ease tape management and restore?for now you could send snapshots to files and a file hierarchy on a SAM-QFS archive .. then you''ve got all the feature functionality there to be able to proactively back up the snapshots and possibly segment them if they''re big enough (non-shared-qfs - might make sense if you''ve got multiple drives you want to take advantage of) .. I believe the goal is to provide this sort of functionality through a DMAPI HSM with ADM at some point in the near future: http://opensolaris.org/os/project/adm/ --- .je
Jonathan Edwards wrote:> > On Mar 14, 2008, at 3:28 PM, Bill Shannon wrote: >> What''s the best way to backup a zfs filesystem to tape, where the size >> of the filesystem is larger than what can fit on a single tape? >> ufsdump handles this quite nicely. Is there a similar backup program >> for zfs? Or a general tape management program that can take data from >> a stream and split it across tapes reliably with appropriate headers >> to ease tape management and restore? > > for now you could send snapshots to files and a file hierarchy on a > SAM-QFS archive .. then you''ve got all the feature functionality there > to be able to proactively back up the snapshots and possibly segment > them if they''re big enough (non-shared-qfs - might make sense if you''ve > got multiple drives you want to take advantage of) .. I believe the goal > is to provide this sort of functionality through a DMAPI HSM with ADM at > some point in the near future: > http://opensolaris.org/os/project/adm/Sorry, I don''t know what "SAM-QFS" or "DMAPI HSM with ADM" are. Looking at the web page above, this doesn''t sound like a simple replacement for ufsdump suitable for desktop use. Surely there must be something simpler? Some way to integrate zfs snapshots with the ability to write to and manage multiple tapes? (No, I haven''t tried star yet. I was hoping for something that comes as a part of Solaris. Plus, star doesn''t seem to know anything about zfs snapshots.)