On Mon, 10 Feb 2003, Mike Maravillo wrote: > As Ian mentioned, drbd can be used for this. The guys from Q > Linux I believe have already used drbd as a mirroring solution in > one of their projects. > > drbd does not actually mirror your database, but the filesystem > itself. For example, all writes on a drbd block device on an > active server is mirrored simultaneously on a standby server. > Couple this with linux-ha/heartbeat and you have a low-cost > high-availability solution. > > Since this is on a block device level, you can therefore use any > database or any application to utilize this mirror.
Cool, this is good for Linux. Seems like roughly the same that I have implemented using Veritas Volume Replicator (which cost an arm and a leg... and ur soul too. :) just kidding...). Replicate Oracle database live to another box roughly 50 km. away. Does drbd use "write order fidelity" so that the secondary has a consistent image of the primary at some known point in time? Because if it does not, there is no guarantee that the secondary has consistent recoverable data. regards, --- Andre M. Varon, SCSA http://andre.lasaltech.com _ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] Fully Searchable Archives With Friendly Web Interface at http://marc.free.net.ph To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
