Tandem Capacity Model (TCM) Manual

1. Select History > Sort History.
2. When the Sort History dialog box appears, click the button next to the desired sort method:
• To see how much a transaction varies by sample, select Sort by Transaction.
• To see a chronological list of data, select Sort by Sample.
3. Click OK.
You can click the Help button in the Sort History dialog box for online help about the Sort History
dialog box.
Uncalibrating Batch Response Time
To reverse the calibration process and revert to the TCM predicted response times, select the
Uncalibrate Transaction option.
To uncalibrate batch response time:
1. Open a Performance model.
2. Select Update > Calibrate Batch Response Time. The Calibrate Batch Response Time dialog
box appears.
3. Check the Uncalibrate Transaction checkbox.
4. Click OK.
TCM reverses the calibration process and reverts to the TCM predicted response times.
For more information, see “Calibrating Batch Response Time” (page 104).
Updating the Capacity History Database
Once you have created a WA model, update the Capacity History database so you can track
your apportionment methods and samples.
To update the capacity history database, select History > Update History.
For more information, see “Updating the Capacity History Database” (page 80).
Updating the Capacity History Database With Selected CSV Files
If you want to update the Capacity History database with a single CSV file, select Workload
Apportionment History > Update History.
The Update Capacity History with Selected CSV Files command is available so that you can update
capacity history with several samples using any Apportionment Weights table (whether TCM Expert
generated it automatically or you generated it manually). If you use TCM Expert to generate the
Apportionment Weights table, TCM Expert automatically updates capacity history and using this
option is not needed.
To update capacity history with selected CSV files:
1. Select TCM Expert from the “TCM Initial Menu” (page 66).
The Specify Custom Directory dialog box appears.
2. Specify a custom folder and click OK.
3. Select TCM Expert > Update History With Selected CSV Files.
The Update History With Selected CSV Files dialog box appears. By default, CSV files that
have not yet been used to update capacity history appear in the Selected CSV Files list.
4. Select a capacity history database from the History Database list.
5. Select an apportionment table from the Apportionment Table list.
6. To get information on a specific CSV file, select the CSV file name and click CSV Info.
7. To select a CSV file, select a file name in the Unselected CSV Files field and then click Add.
The file name appears in the Selected CSV File list.
248 Common TCM Procedures