Component trace support offers the following benefits over the NFS log data sets:

• For virtual storage constraint relief, trace buffers are stored to a z/OS data space. In a multi-server implementation, each server or client has its own data space initialized at startup.
• Performance is improved because in-memory tracing can now be activated without the overhead of I/O.
• The optional use of an external writer data set may extend the amount of trace data collected when accompanied with a z/OS dump.
• For performance, the I/O overhead of writing to a data set is performed under the started external writer address space. Removing the I/O path provides a more responsive NFS error log daemon.
• Use of the IPCS MERGE command provides the ability to merge an NFS server or client component trace with those of other NFS or clients servers and related z/OS products such as TCPIP and UNIX System Services to obtain a single image of system activity.
• Performance is improved over the previous NFS server and client tracing methodology with the ability to enable only those trace events of interest. Previously, the amount of tracing was cumulative.