Chapter 8. Capacity upgrades 225
Draft Document for Review April 7, 2004 6:15 pm 6947ch08.fm
workload types are now required to better evaluate processor capacity as the production
environments are changing, including new, e-business applications.
Those factors contributed to the following LSPR changes for the z990 processors:
Newer version of operating systems (z/OS V1 R4 and z/VM V4 R3)
Some workloads dropped; others changed or added
New VM workloads run as Linux virtual machines
New Linux native workloads
All ITRs now assume LPAR mode
Most workload ITRs now assume 64-bit addressing
VSE/ESA workloads have been dropped
The LSPR workloads for z990 are listed in Table 8-3. The measured ITRs represent LPAR
Mode.
Table 8-3 LSPR workloads for z990 (LPAR Mode)
Following are descriptions of the new workloads:
CB-L (Commercial Batch Long job steps - CPU-Intensive; formerly CBW2):
The CB-L workload is a commercial batch jobstream reflective of fairly heavy CPU
processing. The jobs are more resource-intensive than jobs in the CB-S workload, use
more current software, and exploit ESA features. The work done by these jobs includes
various combinations of C, COBOL, FORTRAN, and PL/I compile, link-edit, and execute
steps. Sorting, DFSMS, VSAM and DB2 utilities, SQL processing, SLR processing,
GDDM® graphics, and FORTRAN engineering/scientific subroutine library processing are
also included. This workload is heavily DB2-oriented, with about half of the processing
time performing DB2-related functions.
CB-S (Commercial Batch Short job steps - I/O-Intensive; formerly CB84):
The CB-S workload is a moderate commercial batch jobstream reflective of fairly I/O
processing. The work done by these jobs includes various combinations of compile,
link-edit, and execute steps. Utility jobs, primarily for data manipulation, are also included.
WASDB (WebSphere Application Serving and Data Base):
Operating system Workload type Workload description
z/OS CB-L CPU-intensive commercial batch (formerly CBW2)
CB-S I/O-intensive commercial batch (formerly CB84)
WASDB WebSphere Application Server+DB2 (Trade2-EJB)
OLTP-W Web-enabled OLTP. CICS/DB2 with WebSphere
Application Server front end.
OLTP-T Traditional OLTP (IMS)
z/VM CMS1 Interactive CMS users
WASDB/LVm Linux guests with WebSphere app+DB (Trade2-EJB)
Linux WASDB/L WebSphere app+DB (Trade2-EJB)
EAS-AS/L Enterprise Application Solution Application Serving under
Linux
