I've recently started down the road of production use for zfs, and am hitting my head on some paradigm shifts. I'd like to clarify whether my understanding is correct, and/or whether there are better ways of doing things. I have one question for replication, and one question for backups. These questions are all about Solaris 10 production release (U5, I believe) not solarisexpress, etc.
1. For replication purposes: is it still true, that the target filesystem has to be "offline" to receive even an incremental send? !! I find this difficult to understand; surely, it should be possible to "receive" to a snapshot at least? 2. for backup/restore purposes:a related question to the above, I suppose. Let's say that I had "major" damage to a filesystem, which is an active NFS share, or something otherwise constantly in use. Either of the following behaviours would be really nice (and both, would be better still :-) 2.1 do a receive of an earlier zfs send, to either a snapshot, or a "child" filesystem, and then somehow "promote" some, or ALL, of the files, to the main production filesystem, without interrupting the active NFS share too badly 2.2 do a receive of an earlier zfs send, to either a snapshot or a "child" filesystem, and be efficient about disk space used. ie: have the recieve understand, "hey, I have that file already, completely intact, so I'm not going to waste space by storing it again". Related to the above, in the issue that even if i HAVE 2x the disk space required by production purposes, to have a "restoral staging area" on the machine... If it gets restored to a separate filesystem, I cant just do a quick "unshare /zfs/foo ; zfs rename /zfs/foo /zfs/foo.old; zfs rename /zfs/foo.restored /zfs/foo" because that will break all the client NFS handles, since it is a "new" filesystem, right? Or is that incorrect? Suggestions on the above, and/or any related issues I havent thought of, would be appreciated -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
