On 10/9/2014 10:39 AM, Jason T. Slack-Moehrle wrote: > I need to keep 2 systems identical. Mostly e-mail directories, web > directories, mysql, etc. The goal here is to have a 2nd system ready to go > it the first one starts to exhibit hardware issues. > > What are options to have this happen? I'm going out on a limb and thinking > rsync but I haven't used it past just simple use cases. > > Can anyone provide some insight for me? drbd is the live replication system, this does block level replication of logical volumes. rsync doesn't handle changing-on-the-fly stuff very well, especially stuff like a database file system which is undergoing constant random write activity. but note, the drbd slave copy can't be mounted until drbd is stopped, or all heck breaks loose. -- john r pierce 37N 122W somewhere on the middle of the left coast