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Displaying the caching statistics z/OS DFSMSdfp Storage Administration SC23-6860-01 |
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If you have an IBM® 3990 Storage
Control with cache with at least one SMS volume attached, you can
display cache statistics, hit ratio, and DASD Fast Write bypasses,
by issuing the following command:
An example
of the generated output appears below.
Figure 1. Displaying Cache and DASD Fast Write Information
Exception: The read and write percentages
are displayed as N/A if the subsystem has the extended platform available.
Since the enhanced dynamic cache management algorithm is used, the
percentages are no longer valid.
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