Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Curtis Vaughan wrote: > My question is this. Obviously one directory structure that I will be > synchronizing (making a drbd block device) would be /home > However, although I would like to be able to synchronize all users and > their passwords, and all postfix settings, that would mean making /etc > also a drbd block device. But that's not possible now is it - or not > advisable as I would be synchronizing files that are box specific > (/etc/fstab, /etc/network/interfaces..., /etc/hostname, etc.). In case of postfix I cannot give you advice. But maybe it gives you some ideas how I did with Apache: - configure the directories of the virtual hosts to be on the drbd device - same with the logs of the virtual hosts, as I want to have them after failover - this needs to modify logrotate - even the log analyzer (webalyzer in my case) needs a check of the configuration - all other applications, which have a strong relationship to web need a check, if they write data which also should failover. E.g. munin in my case, which needs /var/lib/munin and /var/www/munin to be on drbd - some of the above applications have cron jobs. I rewrote them adding a 'test', if the necessary files are available (= "I am primary"). - I do the necessary sync of /etc on file level. - all of the above 'web related' stuff is placed on the same drbd resource, which reflects the idea of 'resource group' within heartbeat in a nice and easy way. Helmut Wollmersdorfer