aix:wpar_intro
Table of Contents
WPAR Introduction
What is a WPAR
A WPAR is a level higher in the virtualization. Available since AIX 6.1, it allows to host on a single OS up to 8000 WPAR. System WPAR can be used for most application that don't use physical resources.
WPAR has appear with AIX 6.1. There are 2 types of WPAR:
- application WPAR, which isolate an application and can have it own IP address. It exist only while the application is up. Few used, because you can't login.
- system WPAR, which give you a fully virtualized OS with minimum management and few devices. It has his own IP, and is compliant for with most applications (Oracle,DB2…)
WPAR Improvements
WPAR improvements with the AIX 6.1 and later operating systems
| AIX 6.1 Base Level (GA) | - Initial support, including mobility using synchronous checkpoint/restart |
| - First WPAR manager release | |
| AIX 6.1 TL1 | - Network File System (NFS) support for WPAR |
| AIX 6.1 TL2 | - Asynchronous mobility |
| - Per-WPAR routing | |
| - Name-mapped network interfaces | |
| - Network Installation Management (NIM) support for WPAR | |
| AIX 6.1 TL3 | - Storage disk devices support |
| AIX 6.1 TL4 | - rootvg WPAR |
| - SAN mobility | |
| - WPAR manager integration with IBM Systems Director | |
| - VxFS support | |
| AIX 6.1 TL5 | - WPAR Error Logging Framework (RAS) |
| AIX 6.1 TL6 | - Virtual SCSI (vSCSI) disk support |
| - WPAR migration to AIX 7.1 |
| AIX 7.1 Base Level (GA) | - Everything that is supported in AIX 6.1, plus Fiber Channel (FC) adapter support, Versioned WPARs running AIX 5.2, and Trusted Kernel extension support AIX version WPAR improvement |
| AIX 7.1 TL1 | - Versioned WPARs running AIX 5.3 |
Since AIX 6.1 TL4, you can create a system WPAR with his own rootvg (/usr and /opt not shared); this method is used on AIX 7.1 to virtualize WPAR in AIX 5.2 and 5.3.
aix/wpar_intro.txt · Last modified: 2021/01/01 21:21 (external edit)
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