It means that at least 1GB is reserved for the MDC, and at most 2GB. Not where the MDC is located. If you don't issue this SET MDC command, CP will try to optimise the central storage between paging and MDC, depending on how many user are waiting for paging/Mdisk I/O.
Kris, IBM Belgium, VM customer support VM/ESA and z/VM Discussions <[email protected]> wrote on 2005-11-21 11:16:49: > hallo everybody, > I have a z/vm440 running with 2 GB mainstorage. > What will be the result if I do a 'SET MDC ST 1024M 2047M' > Does this mean that storage that will be used for mdcache will start at > 1024M boundary and end at 2047M ? > In other words will this guarantie that the first 1024M of storage will not > be used for mdc ? > or > is an amount of 1024M reserved for MDC anywhere in storage even it is > currently not needed. > I have read the books (and online help :-) but I'm still confused. > Please can anybody explain the meaning of the minM option. > Tanks > Horst Rempel > Systemprogrammierung > BG Chemie Heidelberg > Tel.: 06221 / 523-1303 > Fax: 06221 / 523-227 > http://www.bgchemie.de/
