Appendix I. GDPS Virtual Appliance 545
The GDPS Virtual Appliance solution implements the GDPS/PPRC Multiplatform Resilience
for z Systems (xDR), which coordinates near-continuous availability and DR solution by using
these techniques:
Disk error detection
Heartbeat for smoke tests
Initial program load (IPL) in place again
Coordinated site takeover
Coordinated HyperSwap
Single point of control
The GDPS Virtual Appliance has these requirements:
Hardware
– Any supported hardware: zEC12, zBC12, z13, and z13s servers
– 1 LPAR with one logical CP
– 1 GB Memory
– 3 extended count key data (ECKD) direct access storage devices (DASDs) (one for
appliance image initial Installation, and two for the upgrade scenario)
– One or two Open Systems Adapter (OSA) attachments (dependent on the network
setup and the wanted network resilience).
System
– z/VM Version 5 Release 4 or later, or z/VM 6.2 or later. Note that z/VM 5.4 is not
supported on z13s servers.
– The disks being used by z/VM and Linux to be mirrored must be ECKD disks
– A supported distribution of Linux on z Systems with the latest recommended fix pack
– IBM Tivoli System Automation for Multiplatforms with the latest recommended fix pack.
The separately priced xDR for Linux feature is required (one Linux guest as xDR
proxy).
Note: For the latest information about Tivoli System Automation for Multiplatforms, see:
http://www.ibm.com/software/tivoli/products/sys-auto-multi
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