Re: Going from little to no journalling to MIMIX

While you have to have journalling running on any library being 
MIMIXed to the backup system, the receivers don't have to be kept 
around forever.  Mimix administers the receivers, and once the data 
has been transmitted to the backup system, Mimix will clean up any 
receivers it doesn't need.  There are settings to determine how long 
Mimix will keep them around.

Sorry for jumping in late in this thread - my opinion on DASD in 
HA-saloution is:

        Source system - you will have to add some dasd as mentioned above 
taking into account that you sometimes will take the target system down 
for             maintenance and during that time frame you will keep the 
receivers on the source system.

        Target system - you absolutely need more DASD as when you do a 
roleswap to the target system and as long as you are running on the target 
system  you will accumulate the receivers on the target system. Don't know 
your needs but many almost24*7 shops only afford to do planned roleswaps 
on              weekends so you maybe have to calculate with a week 
running on the target system.

        If you drop journalling while on target system your only way back 
is a complete restore.

Regards 
Stefan Tageson