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Old 8th June 2012, 15:55
zephyrnet zephyrnet is offline
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Default adding 2nd slave to web mailmysq database cluster debian & Suggestion requests

Hi,
The 2nd time around I followed this tutorial it worked SO many thanks

I now have 2 mirrored servers, although they are both in the same place.

How can I add a third server (2nd slave, in a different place) into the mix ? For complete redundancy. Im thinking i should do this before adding any sites.

Also does anyone have any suggestions for some sort of automated backup? Of databases & files. Or is it easy to restore a failed server into the mix? I can only see some older tutorials, and technology moves so fast.....

Im guessing id need to, (well like to) image both master & slaves. For speedy recovery in a crisis.

D
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Old 8th June 2012, 16:21
till till is offline
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Running 3 servers as mirror is not that easy, the main problem is mysql and also unison sync with 3 nodes might become complicated. At the end you might find out that a 3 node setup has more downtime then a 2 node setup due to mysql replication problems in a 3 node setup.

If you want to create a mysql replication between more then 2 nodes, you have to make a mysql replication ring like it is described here:

http://www.howtoforge.com/setting-up...on-debian-etch

ISPconfig does not matter in this regard as ispconfig supports as many mirrors as you want, the limiting factor is only mysql and the sync of the data directories.

Quote:
Also does anyone have any suggestions for some sort of automated backup? Of databases & files. Or is it easy to restore a failed server into the mix? I can only see some older tutorials, and technology moves so fast....
http://www.howtoforge.com/forums/showthread.php?t=41609
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Get ISPConfig support and the ISPConfig 3 manual from ispconfig.org.
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