Could you use UV replication for the hashed files, and rsync for the type 1 & 19 files? Depending on your use of those directory type "files", this might accommodate your needs (as long as the hashed files and directory "files" are not linked together with transaction bracketing, etc, and your application could handle them being out of sync a little.
/Scott Ballinger Pareto Corporation Edmonds WA USA 206 713 6006 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Doyle Sent: Wednesday, January 11, 2006 6:58 AM To: u2-users@listserver.u2ug.org Subject: [U2] UV: Other ways of replicating? UniVerse users, Recently, we've been looking at ways of developing a high availability cluster for our production UniVerse environment. Thanks to www.linux-ha.org we've been able to install two machines at different locations (cities twenty miles apart) and if the primary machine drops, users can log into the same IP address within a few seconds. The problem we have run into is replicating our data across the two nodes. The best way would be database replication. Unfortunately, UniVerse can't replicate the type 1 and type 19 files, which we use extensively. Further, we cannot use ALTER.TABLE or CLEAR.FILE on replicated files. (These from the Administrators manual.) The second option we've looked at is some sort of disk replication. IBM recommends DRBD for use with DB2. Unfortunately, it seems that this would not provide referential integrity. The third option we looked at was a complicated mix of transaction logs and NFS mounts. Our standby box would be constantly updating itself off of the transaction logs of the primary. In the event of an outage, the standby comes up more or less updated and the dead primary can refresh itself off of the standby's logs when it comes back up. Does anyone have any experience getting around the shortcomings of UniVerse's replication? Thanks, Mike Doyle Unix Developer / Administrator ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
