IBM 990 User Manual

Page 240

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IBM

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zSeries 990 Technical Guide

between requests so that on average it generates the specified number of requests per
second.

WASDB/L (WebSphere Application Serving and Data Base under Linux)

The WASDB/L workload reflects an e-business environment where a full function
application is being run under Linux in logical partition. For LSPR, this was accomplished
by taking the WASDB workload, and converting it to run both application and data base
servers in a single Linux image.

The WASDB/L workload is basically the same as the WASDB workload for z/OS, with the
exception of being enabled for Linux. UDB 7.0 is used instead of DB2 v7.0, and
WebSphere AE 4.0.4 is used instead of WebSphere 4.0.1.400.

EAS-AS/L (Enterprise Application Solution Application Serving under Linux)

The EAS-AS/L workload reflects the Application Server (AS) portion of the Enterprise
Application Solution running in a Linux environment. The AS resides in a Linux on zSeries
image while the database server and presentation server reside outboard. The EAS
application used for this workload is the SAP R/3 product using DB2 for z/OS. The
workload is derived from the SAP AG defined Sales and Distribution (SD) environment,
but is not based on SAP AG certified benchmarks results. Specifically, the results show an
SAP R/3 AS in a 3-tier client/server configuration. The other two tiers, database server and
presentation server, are not represented in this data.

This workload is similar to the previous EAS-DB (OS/390 R3-DB) workload description.
The software levels used are SUSE Linux Enterprise Server 8 for zSeries and SAP R/3
Release 4.6D.

New predefined z/OS workload mixes

For better accuracy when projecting capacity with LSPR workload data and improved
consistency when working across multiple LSPR releases, new predefined z/OS workload
mixes are also introduced.

There are six predefined z/OS workload mixes:

LSPR-Mix: LSPR generic mix (60% online, 40% other), the default

TI-Mix: Transaction intensive mix (60% online, 40% other)

TD-Mix: Transaction dominant mix (40% online, 60% other)

TM-Mix: Transaction moderate mix (30% online, 70% other)

CB-Mix: Commercial batch mix (100% other)

LoIO-Mix: Low I/O content (special; for use when less than 30 DASD I/Os/sec per MSU)

Table 8-4 lists the LSPR workload types and percentages used for each predefined z/OS
mixed workload.

Table 8-4 New z/OS predefined workload mixes

Workload type

z/OS Workload Mixes

LSPR-Mix

(Default)

TI-Mix

TD-Mix

TM-Mix

CB-Mix

LoIO-Mix

CB-L

20%

30%

45%

52.5%

75%

60%

CB-S

20%

10%

15%

17.5%

25%

-

WASDB

20%

-

-

-

-

20%

OLTP-W

20%

30%

20%

15%

-

20%

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