On Wed, 22 Sep 2004, Nate Carlson wrote: > So what advantages does this have over DRBD? > > Does it support r/w to the same filesystem on multiple notes > simultaneously? That'd be a nifty feature that DRBD doesn't have a way of > offering yet. Constant Data Replicator is not a clusterd file system. But it has several advantages over drdb. a. Full access to the data on the destination system(s). b. Handling of network outages and faults: Constant Replicator journals data changes. It does not require a full resync in case of a fault. drdb is going to require a full resync. c. Constant Data replicator has unique network transport technology and compression making it work well over high latency, long distances d. Encryption (in 3.3) e. One host to many support rather than 1 to 1 only handles intermittent server outages to resume without resync...good for guaranteed real-time data distribution f. Many to one host support for remote office or backup consolidation g. Byte/file level replication; not block level h. Ability to select filesystem objects to replicate based on regular expressions and filesystem permissions, or replication of different data sets from the same source filesystem to different paths on the destination server. i. Cross-platform replication: useful for migration, consolidation (ie. Solaris -> Linux, preserving POSIX ACLs). j. Adds long distance capabilities to clustered file systems like GFS. k. Works with cluster managers but doesn't require one. You can find more info on the web site. Try it free, you will be the judge! --El Haddi Constant Data, Inc. www.constantdata.com _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota Help beta test TCLUG's potential new home: http://plone.mn-linux.org Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list