Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Monday 26 November 2007 16:28:17 Blechman, Ronald I, Jr (Ron) wrote: > "this" = whether one can actually write to the disk while > synchronization is in process. > > Perhaps the confusion is with the word "usable"..... does "usable" mean > "read and write" or just "read"? > > My assumption was with at least protocol C that the system is blocking > until the writes / synchronization has completed. That assumption is incorrect. You can read from and write to the device immediately. Block-by-block replication on the one hand and background sync on the other will run in parallel. You can even switch roles and make a not-yet-synced device Primary, in which case it will fetch as-yet-unsynced blocks over the wire, from the node that has a complete set of good data, and read already-synced blocks locally. As long as a network connection between the two is available, that is. And this is not dependent on the protocol you use. Cheers, Florian -- : Florian G. Haas : LINBIT Information Technologies GmbH : Vivenotgasse 48, A-1120 Vienna, Austria