
258 DS8800 Performance Monitoring and Tuning
7.5 Tivoli Storage Productivity Center reporting options
Tivoli Storage Productivity Center provides numerous ways of reporting about the DS8000
performance data. In this section, we provide an overview of the various options and their
appropriate usage in ongoing performance management of a DS8000 (Table 7-8). The
categories of usage are based on definitions in “Tactical performance subprocess” on
page 639.
Volume Read Cache Hits
Percentage (overall)
> 90 Look for opportunities to move
volume data to application or
database cache.
Volume Write Cache Hits
Percentage (overall)
< 100 Cache misses can indicate ...