
186 DS8800 Performance Monitoring and Tuning
Figure 6-9 zSeries disk subsystem to LPAR interfaces
7. Next, look at the DDM by clicking the zSeries Disk tab. The DDM type is 36 GB/15K rpm.
Because the DDM that we use is 73 GB/10K rpm, we update this information by clicking
Edit. The 3390 types or models are 3390-3 and 3390-9 in Figure 6-10. Because any 3390
model that has a greater capacity than a 3390-9 model shows as a 3390-9 in the DMC file,
we need to know the actual models of the 3390s. Generally, there is a mixture of 3390-9,
3390-27, and 3390-54 models.
Figure 6-10 zSeries DDM option
8. To see the last option, select the zSeries Workload ...