Large Discontiguous Saved Segments (DCSS) Under Linux The following paper is available at
TechDocs http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP101899 DeveloperWorks http://www.ibm.com/developerworks/linux/linux390/perf/tuning_vm.html#dcss A Discontiguous Saved Segment (DCSS) is a z/VM technology used to share memory between z/VM guests. It is a powerful tool that gives z/VM administrators a way to provide high levels of resource sharing between guests, combined with excellent performance. This paper focuses on three areas of application for a large DCSS: sharing code, sharing read-only data, and using a DCSS as a swap device. A special aspect is that the whole WebSphere Application Server was installed into the DCSS, which simplifies the management significantly. Dorothea Matthaeus Linux on System z Information Development IBM Deutschland Entwicklung GmbH ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
