Tandem Capacity Model (TCM) Manual

NOTE: Although RPM, read seek, and write seek times are mentioned in the disk factor sheet,
they are not considered in the actual calculation of SSD disk values, as these three parameters are
not applicable for SSD disks.
Users can add a new disk in the blank rows at the end of the table. You must be either a TCM
administrator or a super user to change the values in this screen. If the available fields are less
than the number of new disks to be added, you can overwrite some of the unused existing entries.
To restore the original table, use the Refresh Formulas command from the Update tab.
Actual Baseline Detail by Category Screen
The Actual Baseline Detail by Category screen is used to view detailed characteristics about process
categories. This screen cannot be modified. Figure 50 (page 154) shows a sample Actual Baseline
Detail by Category screen.
Figure 50 Actual Baseline Detail by Category Screen
Significant Rows
1. Txn Type—Not Directly Modifiable
Online transactions are Txn Type X. Batch transactions are Txn Type B.
2. Total CPU Secs—Not Directly Modifiable
Total CPU Secs is the number of CPU seconds used by the transaction type.
Significant Columns
3. Cat Name—Not Directly Modifiable
Cat Name lists the category names of all process categories as they appear on the Category
Demand Report. These categories are appear in rows in the Apportionment Weights table.
154 The Performance Model