Re: file system replication

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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

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