We were not really satisfy with solution that been offered by Advance Service . High availability of service manager portal and orchestra tools,only depend on backup / snapshot every 5 – 10 minutes and checking using crontab whether the main system is up and running , if something happen the backup server will be started and will took about 10 minutes. These approach it’s not a type of expensive software that we expected. We did’nt buy linksys router for managing our core bandwidth , right !!.
During the migration, we really need know more about current condition, once the process is done users must be not really aware that systems were already move.