Hi Dave,

If all of the CA7 datasets you need copied are on the same DASD volume, then 
something like IBM Flashcopy volume , EMC Snapshot copy volume, HDS 
Shadowimage volume or STK Snapshot copy volume may work.  You could also 
PPRC the volume within the same DASD subsystem without needing any 'wires' 
between multiple DASD subsystems.  You would still need to 'post process' the 
target DASD volume because the dataset names will be same as the source 
DASD volume ( maybe thats good, maybe not, depends on what you want to 
do with those datasets ).  If the CA7 datasets resides on two or more DASD 
volumes, that is where it gets a little tricky.  XRC can give you that multiple 
volume consistency.  It is possible ( and supported ) to XRC within the same 
datacenter and within the same DASD subsystem.  Your DASD subsystem must 
have the XRC feature activated, each vendor has their own method for 
providing XRC support.  The z/OS setup for XRC is not that difficult because 
the System Data Mover ( address space: ANTMAIN ) is always running.
However, if you have z/OS R7, then you may want to take a look at 
section: "5.1.5  FlashCopy Consistency Groups" in the manual: z/OS V1R7.0 
DFSMS Advanced Copy Services.  

All of the above assumes that the reason you need the 'parallel' copy of these 
datasets is because you do not want to "quiesce the application" ( CA7 ) that 
owns these datasets.

HTH
Glenn Miller

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