Other Observations Size of the view cache has little impact on results. Linking the view storage area has little impact on results. Test Plan Running a set of ClearCase operations on a VOB server in two configurations, one using a filer and one without, black box testing was performed. Start and end times were recorded in a log file and then compared to determine performance improvement. Each storage pool has its own set of characteristics.
Poor performance can lead to unacceptably long build processes.
In addition, the sar utility in the Solaris operating system was used to track disk performance while the black box testing was being run. O to complete was logged to a file every ten minutes. Tests were conducted to simulate two different kinds of stress that occur in a ClearCase environment. The first occurs when many users try to access the ClearCase environment at the same time, but usually with a smaller set of files. For this case, the number of views in the test was varied from 4 to 48 but the number of files was mostly kept at 200.