GDR concepts
The GDR solution provides a highly available environment by identifying a set of resources that are required for processing the virtual machines in a server during disaster situations.
The GDR solution uses the following subsystems:
- Controller system (KSYS)
- Site
- Host
- Virtual machines (VMs) or logical partitions (LPARs)
- Storage
- Network
- Hardware Management Console (HMC)
- Virtual I/O Server (VIOS)
The following figure shows the GDR architecture:
Figure 1. Components of GDR
solution