I have a general question.

Does anyone know where I can find information about how often a disk needs to 
be replaced or does dynamic sparing inside these new fangle DASD Boxes from 
IBM, EMC, or Hitachi?

I am not talking about the mainframe dasd itself.  But rather the disk in the 
box that the mainframe dasd is mapped (?) too?

I have heard that a CE has to replace at least 1 disk per month on some of 
these boxes.  (DMX3000 - EMC,  DS8000 - IBM, etc....)

So I guess I am looking at MTTF for the disk.

Lizette

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