IBM z13s, Technical Manual

Page: 574 / 588

546
IBM z13s Technical Guide
Figure I-3 shows an overview of GDPS Virtual Appliance implementation.
Figure I-3 GDPS virtual appliance architecture overview
Keep in mind the following considerations for GDPS Virtual Appliance architecture:
򐂰 PPRC ensures that the remote copy is identical to the primary data. The synchronization
takes place at the time of I/O operation.
򐂰 One dedicated Linux guest is configured as the xDR Proxy for GDPS, which is used for
tasks that have z/VM scope (HyperSwap, shut down z/VM, IPL z/VM guest).
򐂰 The remote copy environment is managed by using HyperSwap function, and data is kept
available and consistent for operating systems and applications.
򐂰 Disaster detection ensures successful and faster recovery by using automated processes.
򐂰 A single point of control is implemented from the GDPS Virtual Appliance. There is no
need for involvement of all experts (for example, storage team, hardware team, OS team,
application team, and so on).
L
in
ux
z/VM
L
in
ux
xD
R
P
ro
xy
LPAR
GDPS
Appliance
System z PR/SM
Support Element
System z CPC
z/VM +
Linux disks
(primary)
Site 1
Site 2
PPRC
HMC
z/VM +
Linux disks
(secondary)
System z PR/SM
Support Element
LPAR
LPAR
System z CPC
xDR
Proxy/
GDPS
disks