Do I need to install the Oracle Client in order to monitor V$sysstat data from an Oracle Server?
Yes, when using the Oracle v$sysstat monitor to capture the system performance counters from an Oracle Server you will need to install an Oracle Client on the same machine as SilkPerformer.
The reason for this is that the Oracle Monitor (OracleMonitoring.sep) used for monitoring v$sysstat uses a BDL Monitoring script which calls Oracle API functions such as OraLogon (in order to connect to the Oracle Server you wish to monitor). Hence the need to have the Oracle Client installed so that the SilkPerformer BDL script can use the necessary Oracle API/libraries.
Typical error: PDCE: 701 - Query for Ltci performance counter update failed.