> I am considering building a modest sized storage system with zfs. Some > of the data on this is quite valuable, some small subset to be backed > up "forever", and I am evaluating back-up options with that in mind.
You don't need to store the "zfs send" data stream on your backup media. This would be annoying for the reasons mentioned - some risk of being able to restore in future (although that's a pretty small risk) and inability to restore with any granularity, i.e. you have to restore the whole FS if you restore anything at all. A better approach would be "zfs send" and pipe directly to "zfs receive" on the external media. This way, in the future, anything which can read ZFS can read the backup media, and you have granularity to restore either the whole FS, or individual things inside there. Plus, the only way to guarantee the integrity of a "zfs send" data stream is to perform a "zfs receive" on that data stream. So by performing a successful receive, you've guaranteed the datastream is not corrupt. Yet. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
