After the night shift
First – all systems are up and running! It is always exciting to make changes in productive environments because testing in a test environment is a bit “sterile” or “artificial”.
The resize operations on VMWare were straight forward as always but it took some time to backup the virtual harddrives before.
The really interesting thing was to shrink the ext3 partition on one of our OpenVZ servers, lvreduce the LVM logical volume, grow the ext3 to the maximum of the resized LVM logical volume and to implement DRBD for productive usage between to hot servers. Result: perfect! I decided to push up the syncer rate of DRBD (default 240K/sec.) to 20M/sec. The initial primary/secondary sync took about 30 minutes (20 G device).
Today the status is that the DRBD devices are in sync and the nighly reboot of the servers had no impact. I think I will make a little .deb package today for my management scripts of the OpenVZ containers (stratup). After that time is coming to copy our loadbalancer into the DRBD…..
Mario