Re: DataMirror vs. Universal

Hiya,


>We are considering getting either DataMirror or Universal for Data
propagation. Universal is based in Windows servers. My  question is in the
day >to day side for DataMirror, is there extensive operator work required,
checking, etc... if so what are some of the issue that the operator and
>admin staff have to deal with?

We are using DataMirror for more than 1.5years now. Day-to-day maintenance
merely consists of checking the central status screen
of DM (on both machines). DM will report errors (mostly suspended objects -
not in synch) on that screen. If there are suspended
objects you'll have to reactivate them by retransmitting to the backup
machine. But this normally doesn't happen, unless something
goes wrong on your original machine (which should result in some error
messages there.).

OTOH, you should be prepared for an extended implementation and testing
phase. Preparing the stuff for a system switch over is not a
piece of cake. In our complicated environment, we still haven't fully
tested the switch-over.  There are some external servers
controlling warehouse automation machinery without a test system that
cannot be switched for mere testing.

Regards,

Oliver