This study describes how the advantages of the System z cryptographic hardware features with IBM WebSphere Application Server (WAS) Version 8 for Linux on System z can be exploited when SSL encryption is used to secure the external communication. It also provides setup guidelines for Java-based workloads.
The concepts of a z/VM cluster and Live Guest Relocation (LGR) have been introduced with z/VM Version 6.2. This paper shows the impact of LGR on a Java application and gives recommendations for configuring z/VM systems in order to optimize it.
This study provides guidelines for the disk configuration and tuning hints with regard to ECKD and FCP disk devices, and specifically for the Oracle standalone database using an OLTP workload. It also compares the behavior of Oracle 11g with Oracle 10g.
The project described in this paper implements the TSAM 7.2.2 for Linux on System z to manage Linux guests on z/VM. It provides a sample installation to guide you through the installation steps and provide sizing suggestions. The results of this project can be used to establish a performance baseline.
This study analyzes various rules for the Linux cpuplugd daemon, which can be used to automatically adjust CPU and memory resources of a Linux z/VM guest. An updated version of the cpuplugd daemon is available with SUSE Linux Enterprise Server (SLES) SP2 and Red Hat Enterprise Linux (RHEL) 6.2, which greatly enhances the capability to define rules and the available performance parameters for the rule set.
This report presents performance data for a test that compares the effects of stacking 200 WebSphere Application Servers. The question is whether it is better to host all WebSphere Application Servers on a single z/VM guest, or distribute the servers across multiple guests.
This technical paper analyzes the behavior of Linux z/VM guests running a WebSphere workload or a relational database (RDB) workload when they are paused and restarted in an idle phase. The Linux suspend and resume function is compared to the z/VM CP STOP and BEGIN commands.