Possible performance problems.

Hello Viv,
 
 > We restored an 8Gb library on a 50S #2122 @ V3R7M0 using an 8mm 
 > cart. formatted to *FMT5GB and data saved @ V3R1M0. This restore 
 > took 5 hours without access paths  and 15 hours with access paths.
 
I assume that the logical files have to be changed from CISC to RISC, this 
might occur for every byte? I don't know it actually, but this might explain 
this behaviour. If you restore without access paths the system has to rebuild 
the access path which is faster at a RISC machine. The changing from CISC to 
RISC is only a small portion, 'cause the logical file is empty in this case. 
So the overall performance is better.
 
I hope this was right
 
 Chris
 calling from Kassel, Germany
 

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