> -----Original Message----- > From: Jacob Ritorto [mailto:[EMAIL PROTECTED] > Sent: Wednesday, April 02, 2008 5:32 PM > To: [EMAIL PROTECTED] > Cc: [email protected] > Subject: Re: [storage-discuss] Sync between sites > > Thank you for your response Andrey. Does the send/rcv have to do a > whole file at a time, or does it break them up to send only the piece
Zfs_send/rcv operates on snapshots, not files, and the approach is to take regular snapshot at primary, and then let zsend iterate through differences between the last and previous one (which constitute your change-set, though at block level), and send just those changed blocks to secondary for rcv to apply. This way you'd have snapshot at secondary synced with snapshot at primary, with only changed blocks transferred across network in the most efficient manner. > of the file that has changed? Obviously if it has to do a whole file > at a time, a big iSCSI target image would ruin the plan. Sorry if > this is a FAQ. NP. Regards, Andrey > > thx > jake > > > I believe hourly snapshots at primary and zfs_send/rcv to extract > > inter-snapshot diffs, send them over network link and apply at secondary > > will do the job. And this approach is filetype-agnostic, seemingly exactly > > what you are looking for. _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
