Introduction
The test environment used to produce the results presented in this paper is the same as that used in z/VM® 6.2 Live Guest Relocation with Linux® Middleware.
z/VM 6.2 Live Guest Relocation with Linux Middlewarez/VM 6.2 Live Guest Relocation with Linux Middleware provides an overview of z/VM concepts and of the principal test environment.
In this addendum, the analysis focusses on how the relocation characteristics
change at the workload level, instead of on the IOCDS and z/VM configuration parameters.
How the following different workloads are affected by the relocation
process is investigated and how in turn the workload parametrization
can affect the relocation process:
- Java™ workload (see Java workload)
- File system I/O workload (see File system I/O workload)
- Database workload (see Transactional database workload)
In addition, the situation is analyzed whereby a mixture of workloads (see Mixed workload) is executed in parallel on the source z/VM system such that CPU resource constraints result on the source z/VM system, and how a live guest relocation of one workload can remedy the constraint situation.