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502 IBM System Storage DS6000 Series: Copy Services with IBM System z
32.1 GDPS solution offerings
GDPS is a family of offerings, for single site or multi-site application availability solution, with
the capability to manage the remote copy configuration and storage subsystems, automate
System z operational tasks, manage and automate planned reconfigurations, and do failure
recovery from a single point of control.
GDPS is an integrated end-to-end solution composed of software automation, software,
servers and storage, networking, and IBM Global Services to configure and deploy the
solution, as shown in Figure 32-1. The GDPS solution has components in the areas denoted
by dark shading.
Figure 32-1 Positioning of GDPS solution offerings
The benefits of GDPS are: a highly reliable, highly automated IT infrastructure solution with a
System z-based control point, which can provide very robust application availability.
GDPS is enabled by means of key IBM technologies and architectures.
GDPS supports both the synchronous (Metro Mirror) as well as the asynchronous (z/OS
Global Mirror or Global Mirror) forms of remote copy. GDPS also supports Peer-to-Peer
Virtual Tape Server (PtP VTS) for remote copying of tape data. The GDPS solution is a
non-proprietary solution, working with IBM as well as Other Equipment Manufacturer (OEM)
disk vendors, as long as the vendor meets the specific functions of the Metro Mirror, Global
Mirror, and z/OS Global Mirror architectures required to support GDPS functions.
GDPS automation manages and protects IT services by handling planned and unplanned
exception conditions. Depending on the GDPS configuration selected, availability can be
storage resiliency only, or can provide near-continuous application and data availability.
Regardless of the specific configuration variation, GDPS provides a System z-based
Business Continuity automation and integration solution to manage both planned and
unplanned exception conditions.
To attain high levels of continuous availability and near-transparent DR, the GDPS solution is
based on geographical clusters and disk mirroring.
Figure 32-2 is a diagram of some of the many possible components supported in a GDPS
configuration. GDPS is configured to meet the specific client requirements. Not all of the
components shown in Figure 32-2 are necessary in all GDPS offerings or GDPS solutions.
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1
Recovery Time
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Business value
+
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+
Software Automation for SAP, DB2,Siebel,MS SQL Server,
Exchange etc.
4
Services
Automation for server z/OS, UNIX, Linux, Windows and
heterogeneous environments.
3
Point in Time Copy, Metro Mirror, Global Mirror, TotalStorage
Software Family, DFSMS for z/OS, TSM.
2
Hardware Infrastructure:
ESS, DS family
, SAN Switches,
VTS
,
3584, 3592, LTO
1
Autonomic