December 2006
Intermediate to advanced
228 pages
6h 20m
English
book
Introduction to the New Mainframe: Large-Scale Commercial Computing
by Mike Ebbers, Pilar Gonzalez Adrados, Frank Byrne, Rodney Martin, Jon Veilleux
Content preview from Introduction to the New Mainframe: Large-Scale Commercial Computing
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Chapter 4. Integrity and security 79
programmers, can specify the performance and availability needs for individual
data sets. These needs are defined via Storage classes. SMS uses Storage
classes, along with system performance statistics, to determine if data accesses
are meeting the goals defined for the storage class. If they are not meeting goals,
then SMS can automatically move the data set to a DASD that will provide the
necessary performance for the data.
4.3 Security
This leads us into a discussion on security. The first step in providing for data
integrity is to adequately secure access to the operating system. If unauthorized
users cannot log into the operating system, they cannot access the data. By
providing a robust set of secu ...
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