My full backup script errorred out the last two times I ran it. I've got a full Bash trace of it, so I know exactly what was done.
There are a moderate number of snapshots on the zp1 pool, and I'm intending to replicate the whole thing into the backup pool. After housekeeping, I take make a current snapshot on the data pool (zp1). Since this is a new full backup, I then destroy the data on the backup pool (bup-ruin). Then I create the appropriate backup filesystem (bup-ruin/fsfs/zp1), and do a full replication send and receive. (They're piped together; Bash trace output shows the commands separately below.) + zfs snapshot -r z...@bup-20100303-130903gmt + zfs destroy -rf bup-ruin/fsfs/zp1 + zfs create -p bup-ruin/fsfs/zp1 + zfs send -Rv z...@bup-20100303-130903gmt + zfs recv -Fudv bup-ruin/fsfs/zp1 sending from @ to z...@bup-20090223-033745utc So it starts sending, and receiving (not shown), and this goes on for a long while, and eventually (I left in a number of the late snapshots being transferred) sending from @bup-4hr-20100227-040000CST to zp1/l...@bup-4hr-20100227-080000cst sending from @bup-4hr-20100227-080000CST to zp1/l...@bup-daily-20100227-100000cst sending from @bup-daily-20100227-100000CST to zp1/l...@bup-4hr-20100227-120000cst sending from @bup-4hr-20100227-120000CST to zp1/l...@bup-4hr-20100227-160000cst sending from @bup-4hr-20100227-160000CST to zp1/l...@bup-4hr-20100227-200000cst sending from @bup-4hr-20100227-200000CST to zp1/l...@bup-4hr-20100228-000000cst received 271KB stream in 1 seconds (271KB/sec) sending from @bup-4hr-20100228-000000CST to zp1/l...@bup-4hr-20100228-040000cst receiving incremental stream of zp1/l...@bup-monthly-20100222-210000cst into bup-r\ uin/fsfs/zp1/l...@bup-monthly-20100222-210000cst received 312B stream in 1 seconds (312B/sec) receiving incremental stream of zp1/l...@bup-daily-20100222-210000cst into bup-rui\ n/fsfs/zp1/l...@bup-daily-20100222-210000cst sending from @bup-4hr-20100228-040000CST to zp1/l...@bup-4hr-20100228-080000cst received 312B stream in 1 seconds (312B/sec) receiving incremental stream of zp1/l...@bup-4hr-20100224-120000cst into bup-ruin/\ fsfs/zp1/l...@bup-4hr-20100224-120000cst sending from @bup-4hr-20100228-080000CST to zp1/l...@bup-daily-20100228-100000cst cannot receive incremental stream: most recent snapshot of bup-ruin/fsfs/zp1/lydy \ does not match incremental source This badly breaks my understanding of what zfs send/receive does. I don't see how this error is a possible outcome of the pair of commands I gave. real 59m8.057s user 0m0.537s sys 5m51.895s It ran about an hour. A full backup that succeeds takes about 6 hours (the backup pools are external USB drives, not so fast). bash-3.2$ zpool list NAME SIZE USED AVAIL CAP HEALTH ALTROOT bup-ruin 928G 63.7G 864G 6% ONLINE /backups/bup-ruin rpool 149G 6.41G 143G 4% ONLINE - zp1 1.09T 637G 479G 57% ONLINE - As you can see, it was nowhere near finished. But nothing was full, nothing crashed. Anybody got a spare clue? It shouldn't, as I understand it, be possible for a full replication stream going into a newly-created filesystem to get this error. -- David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
