Re: [zfs-discuss] zfs snapshots and rsync
Thank you very much for your help! I wasn't aware of those options. ...sending end is running rsync 3.0 (Ubuntu 8.04 LTS), crossing my fingers, hoping it'll work. -- 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 snapshots and rsync
On Sat, 17 Apr 2010, G. Ander wrote: According to how rsync works, the actual sent data should be much less than the size of the file(s), however, I noticed that the used space of the dataset+snapshot was the combined size of the older and newer file. The increase of space consumed is because rsync copied to a new temporary file in order to assure that there is no corruption. But do you think it would be possible to create a version of rsync that worked more closely with ZFS in such a way that only the changes could be written to disk? Use these rsync options to achieve the desired behavior: --inplace --no-whole-file Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, 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] zfs snapshots and rsync
Bob Friesenhahn wrote: On Sat, 17 Apr 2010, G. Ander wrote: According to how rsync works, the actual sent data should be much less than the size of the file(s), however, I noticed that the used space of the dataset+snapshot was the combined size of the older and newer file. The increase of space consumed is because rsync copied to a new temporary file in order to assure that there is no corruption. But do you think it would be possible to create a version of rsync that worked more closely with ZFS in such a way that only the changes could be written to disk? Use these rsync options to achieve the desired behavior: --inplace --no-whole-file Bob -- Bob's entirely correct, with one additional note: make sure to use rsync 3.0.0 or later ON BOTH ENDS of the copy, as there are some important bugfixes around the --inplace option rolled up by that point. -- Erik Trimble Java System Support Mailstop: usca22-123 Phone: x17195 Santa Clara, CA Timezone: US/Pacific (GMT-0800) ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
