GDPS/PPRC HyperSwap Manager: Providing continuous availability of consistent data
IBM United States
Marketing Announcement 305-015
February 15, 2005
 ENUS305-015.PDF (39KB)
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The new IBM Implementation Services for GDPS/PPRC HyperSwap Manager:
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Makes available the current GDPS/PPRC HyperSwap technology to customers using a single site to
provide near-continuous data availability
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Allows DASD data to remain available to end-user applications during disk subsystem maintenance or
disk subsystem failures
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Simplifies management of remote copy configuration, providing an automated single point of control
and alerts to notify you of problems in the remote copy configuration
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Provides planning, installation, implementation, and training for GDPS/PPRC HyperSwap Manager
In addition, specially priced versions of IBM Tivoli NetView for z/OS and IBM Tivoli System
Automation for z/OS that provide select functions needed to support GDPS/PPRC HM are being made
available at an attractive price.
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Today, IBM is announcing GDPS™/PPRC HyperSwap™ Manager (GDPS/PPRC HM). The GDPS/PPRC
HyperSwap™ Manager services offering within the GDPS suite of offerings is designed to provide
continuous availability of data by masking disk outages caused by disk maintenance and/or failures
for IBM z/OS® and z/VM® customers. A Parallel Sysplex® environment has been designed to
reduce outages by replicating hardware, operating systems, and application components. In spite of
this redundancy, having only one copy on the data is an exposure. This offering provides management
of the data replication environment and automates switching between the two copies of the data
without causing an application outage, therefore providing near-continuous access to data.
GDPS/PPRC HM simplifies the control of the storage environment in a single sysplex within a physical
site or across two sites at supported distances. In a two-site configuration this offering provides
an entry-level disaster recovery capability at the remote site. GDPS/PPRC HM uses the HyperSwap
technology, a key component of a "full" GDPS/PPRC implementation. This also provides an effective
entry-level offering for those 
zSeries® customers that have the need for very high levels of data availability.
Customers that implement GDPS/PPRC HyperSwap Manager today can increase their current availability
and D/R capability but can enhance their availability and DR capabilities further by migrating to
full-function GDPS/PPRC.
IBM is also offering a customized version of Tivoli® NetView® for z/OS and Tivoli System
Automation for z/OS that provide only the functionality needed to support GDPS/PPRC HM at a
cost-effective price. These new customized products and the GDPS/PPRC HM offering are designed to
bring new levels of affordability to customers who do not require the full-function products. This
makes GDPS/PPRC HM an excellent entry-level offering for those single-site or multisite
installations that need higher levels of IT availability.
Additional information on IBM Implementation Services for GDPS/PPRC HyperSwap Manager can be found
in Services Announcement
605-002
, dated February 15, 2005, and Software Announcement
205-035
, dated February 15, 2005.
More detailed information on the GDPS service offerings is available on the Internet at:
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Refer to the
Prerequisites
section of this announcement.
For a complete description of GDPS software prerequisites, refer to
GDPS: The e-business Availability Solution
(GF22-5114).
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February 15, 2005
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In e-business, two important objectives for survival are continuous availability and
near-transparent disaster recovery (D/R). Systems that are designed to deliver continuous
availability combine the characteristics of high availability and near-continuous operations to
deliver high levels of service — targeted at 24x7x52. High availability is an attribute of a
system that provides service at agreed upon levels and can mask unplanned outages from end users.
Continuous operations, on the other hand, is the attribute of a system designed to continuously
operate and mask planned and unplanned outages from end users. To attain high levels of continuous
availability, it is important to avoid single points of failure (SPOFs). The GDPS/PPRC HM
eliminates the disk subsystem as a SPOF. To attain even higher levels of availability and
near-transparent D/R, the solution is based on geographical clusters and data mirroring. These
technologies are the backbone of the GDPS solution.
More details on GDPS technology can be found in
GDPS: The e-business Availability Solution
(GF22-5114), available on the Internet at
and
IBM zSeries: Premier Business Resiliency for the On Demand
World
(GM13-0638), available on the Internet at
GDPS/PPRC HyperSwap Manager is a new entry-level GDPS offering that is
designed to provide data continuous availability for data within a
single-site z/OS configuration, together with cost-effective disaster
recovery when configured over two sites. This new GDPS offering makes
available the current GDPS/PPRC HyperSwap technology to a single-site
z/OS configuration. Utilizing GDPS HyperSwap Manager within a data
center allows the disk data to remain available to end user applications
during disk subsystem maintenance or disk subsystem failures. In
addition, GDPS/PPRC HyperSwap Manager is a cost-effective way to manage
the storage environment.
This offering provides a low-cost entry-level GDPS solution. A customer
can then migrate to the full GDPS/PPRC capability across multiple sites
as business requirements demand the higher availability provided by a
second site. The initial investment in GDPS/PPRC HM is protected when
customers choose to move to full-function GDPS/PPRC by leveraging the
existing GDPS/PPRC HM implementation.
IBM Tivoli System Automation (SA) for z/OS and IBM Tivoli NetView for
z/OS products are prerequisites for implementing GDPS HyperSwap Manager.
Some customers do not have these IBM software products and have no
requirements for their full function capabilities outside of GDPS. This
new offering will include an option to deliver a new limited-function
NetView and SA for GDPS/PPRC HyperSwap Manager at a lower attractive
price:
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IBM Tivoli System Automation for GDPS/PPRC HyperSwap Manager, V1.1 for
existing NetView installations, or
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IBM Tivoli System Automation for GDPS/PPRC HyperSwap Manager with
NetView, V1.1 which includes the required NetView functions.
By containing only the functionality of the GDPS/PPRC automation code to
the storage capabilities of GDPS the scope of the customization effort is
reduced and allows a lower-priced offering. For more information on the
Tivoli System Automation and NetView products, refer to Software
Announcement
205-035
, dated February 15, 2005,
The GDPS HyperSwap Manager Implementation Service includes on-site
consultancy implementation assistance for IBM Tivoli System Automation
for z/OS for GDPS/PPRC HyperSwap Manager with NetView, and the GDPS/PPRC
HM automation code. These services are bundled together for one price.
HyperSwap functionality
Even with the multi-path and RAID architecture within DASD subsystems the single copy of the data
continues to be a single point of failure (SPOF). A failure of a disk subsystem or even a single
disk array failure can take down major applications, the system, or even the sysplex. GDPS/PPRC
HyperSwap Manager is designed to remove this SPOF.
GDPS/PPRC HyperSwap function takes advantage of the Freeze function to help provide data consistency
and stop the propagation of logical data corruption to secondary volumes.
GDPS/PPRC HyperSwap Manager exploits the PPRC Failover/Failback function. For planned swaps,
Failover/Failback will reduce the overall elapsed time of the swap. For unplanned swaps,
Failover/Failback eliminates the need to perform an initial copy to undamaged primary disk
subsystems when reestablishing the PPRC mirror in the reverse direction. This effectively minimizes
the window during which critical data is left without PPRC protection following an unplanned swap.
The existing full-function GDPS/PPRC offering includes support for HyperSwap. This is designed to
transparently switch all primary PPRC disks with the secondary PPRC disks for a planned switch
reconfiguration or unplanned swap in the event of a primary disk subsystem failure, without
requiring applications to be quiesced.
The HyperSwap function is completely automated which allows all aspects of the site and disk switch
to be controlled by GDPS. The important ability to re-synchronize incremental disk data changes, in
both directions, between primary/secondary PPRC disks is provided as part of this function. In
addition to the DASD management the full-function GDPS/PPRC will manage the sysplex images and
restart workload in the surviving site when more than just the disk subsystems fail. Large
configurations can be supported, as HyperSwap has been designed with built-in parallelism to swap
large numbers of disk devices very quickly.
The GDPS/PPRC HyperSwap Manager offering makes the full GDPS/PPRC HyperSwap capability described
above available at a lower price for use in a single-site continuous availability or a multisite
continuous availability and entry-level disaster recovery solution.
The GDPS HyperSwap Manager offering makes the capabilities described above available at an
attractive price for use in a single-site near-continuous availability or a multisite
near-continuous availability and disaster recovery solution.
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This offering extends the GDPS family of solutions by providing an entry-level solution for single-
and multisite customers at a cost-effective price. Adding the GDPS/PPRC HyperSwap Manager Service
to the GDPS suite of services is designed to allow customers to increase availability and provide
applications with continuous access to data. Today GDPS appeals to zSeries customers who require
continuous availability and extremely fast recovery. This offering opens up a new market for GDPS
in the single data center.
The GDPS/PPRC offerings deliver world-class solutions built on the z/OS platform and yet can manage
a heterogeneous environment. GDPS/PPRC provides three solutions, depending upon customer needs.
Remote Copy Management Facility (RCMF) provides management of the remote copy environment from a
single point of control. GDPS/PPRC HyperSwap Manager builds upon RCMF with the addition of data
consistency, the Freeze function, and the HyperSwap functionality for automated recovery of disk.
GDPS/PPRC HM can be used as a single-site near-continuous availability or multisite near-continuous
availability and entry-level disaster recovery solution. The full-function GDPS/PPRC offering
includes the capabilities of GDPS/PPRC HM, and is designed to provide an automated end-to-end
solution to dynamically manage storage system mirroring, processors, and network resources for
planned and unplanned events that could interrupt continued IT business operations.
In e-business and the on demand world we live in, two of the most stringent demands for business
survival are continuous availability and near-transparent disaster recovery (D/R). Systems that
deliver continuous availability combine the characteristics of high availability and continuous
operations to always deliver high levels of service (24x7x52). GDPS/PPRC is a continuous
availability and disaster recovery solution for multisite customers with data consistency based upon
synchronous data mirroring. GDPS/XRC is a disaster recovery solution for multisite customers with
data consistency based upon asynchronous data mirroring.
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IBM plans to take the following actions in the future:
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IBM intends to provide GDPS/PPRC HyperSwap Manager capability for continuous data availability to
customers operating with a single z/OS image without requiring a sysplex.
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IBM intends to provide new releases of GDPS on a yearly cycle.
These statements represent current intentions of IBM.
Any reliance on these statements of direction are at the relying party's sole risk and will not
create any liability or obligation for IBM.
All statements regarding IBM's plans, directions, and intent are subject to change or withdrawal
without notice.
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-
Enhancements to the IBM
zSeries 900 Family of Servers, in Hardware Announcement
101-308
, dated October 4, 2001
-
New Functions for IBM
zSeries Servers Enhance Connectivity, in Hardware Announcement
102-209
, dated August 13, 2002
-
IBM Introduces the IBM
zSeries 990 Family of Servers, in Hardware Announcement
103-142
, dated May 13, 2003
-
IBM enhances the IBM zSeries
990 family of servers, in Hardware Announcement
103-280
, dated October 7, 2003
-
IBM Implementation Services, Installation Services, and Operational Support Services Now Available
for Selected IBM Products, in Services Announcement
603-015
, dated June 17, 2003
-
IBM TotalStorage® PtP VTS includes FICON™ connectivity for increased performance and distance,
in Hardware Announcement
103-204
, dated July 15, 2004
-
IBM enhances the IBM zSeries
990 family of servers, in Hardware Announcement
104-118
, dated April 7, 2004
-
Significant IBM zSeries
mainframe security, SAN, and LAN innovations, in Hardware Announcement
104-346
, dated October 7, 2004
-
IBM zSeries 990 and 890
FICON enhancements, in Hardware Announcement
105-012
, dated January 25, 2005
Business Partner information
If you are a Direct Reseller - System Reseller acquiring products from IBM, you may link directly to
Business Partner information for this announcement. A PartnerWorld ID and password are required
(use IBM ID).
BP Attachment for Announcement Letter 305-015
Trademarks
-
-
GDPS, HyperSwap, and FICON are trademarks of International Business Machines Corporation in the
United States or other countries or both.
-
-
z/OS, z/VM, The e-business logo, Parallel Sysplex, zSeries, NetView, Tivoli, and TotalStorage are
registered trademarks of International Business Machines Corporation in the United States or other
countries or both.
-
-
Other company, product, and service names may be trademarks or service marks of others.
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GDPS™ skills transfer is provided to the customer from the GDPS installation team as the GDPS
solution is being installed and customized. In addition, a two-day GDPS Technical Consulting
Workshop service is available for customers by sending a note to GDPS@us.ibm.com.
IBM Global Services, Learning Services, education supports many related IBM offerings.
Visit
For descriptions of courses worldwide, go to
Questions? Contact 800-IBM-TEACH (426-8322).
The following worldwide courses are available for classroom delivery:
-
Advanced Parallel Sysplex® Operations and Recovery (ES902)
-
Enterprise Storage Server™ Copy Services for S/390® and zSeries®
(SS410)
-
Enterprise Storage Server Copy Services for S/390 and zSeries (SS415)
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IBM TotalStorage® Enterprise Storage Server Implementation for zSeries
(SS460)
-
IBM Tivoli® System Automation for z/OS® 2.3 Implementation and
Administration (SM930)
-
IBM Tivoli NetView® for z/OS 5.1 Installation and Administration
(TM720)
The following worldwide courses are available on Digital Video Library
format:
-
IBM Total Storage Ent. Storage Copy Serv. for OS/390® and zSeries
(SS1S0)
-
IBM Total Storage Enterprise Storage Services for zSeries (S46S0)
In the U.S. and Canada call 800-IBM-TEACH (426-8322) to enroll in one or
more of these classes.
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Hardware requirements
GDPS/PPRC HyperSwap™ Manager requires Peer-to-Peer Remote Copy (PPRC) capable disk subsystems at
PPRC Level 3 technology (disk subsystems that support Extended CQUERY).
If GDPS is running with z/OS V1.3 through z/OS V1.5, a 9672-G5, 9672-G6, or IBM zSeries is required. An IBM zSeries is required if GDPS is
running on z/OS V1.6 or later.
Software requirements
GDPS/PPRC HyperSwap Manager runs on the currently supported releases of z/OS and z/OS.e. The z/OS
images must be a member of a multisystem sysplex. A Parallel Sysplex is not required. In addition,
the following software products are required:
One of the following
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IBM Tivoli System Automation for GDPS/PPRC HyperSwap Manager with NetView, V1.1 or higher
-
or Tivoli NetView for z/OS V5.1 or higher together with one of the following:
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IBM Tivoli System Automation for GDPS/PPRC HyperSwap Manager, V1.1 or higher, or
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IBM Tivoli System Automation for z/OS V2.2 or higher
For a complete description of software prerequisites for all GDPS offerings, refer to
GDPS: The e-business Availability Solution
(GF22-5114).
Configuration considerations
Using the GDPS/PPRC HM requires the DASD control units to be in a symmetric configuration. They are
to be configured and mapped one to one. All volumes are to be aliased so that they can mirror data
in either direction. Any two DASD control units to be mirrored will have the same number of volumes
and the same size of volumes in each pair of Logical Control Units (LCUs). No LCU will be attached
to more than one GDPS/PPRC HM at one time.
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GDPS gives you compatibility and flexibility as you migrate systems in a multisystem configuration
by allowing two consecutive releases of GDPS to coexist.
Coexistence allows systems within a multisystem configuration to be upgraded to a new release level
of GDPS one system at a time. This is contingent on the fact that the release you are migrating to
can coexist with the lower release running in your multisystem configuration.
You can upgrade from GDPS/PPRC HyperSwap Manager to the full multisite GDPS/PPRC offering. When
your business requires additional disaster recovery functions and you want to migrate to the full
multisite IBM GDPS/PPRC high-availability solution, you can upgrade your current GDPS code.
Performance considerations
Using the GDPS/PPRC HyperSwap technology enables a switch to use the secondary remote copy devices
in under one minute for an unplanned outage without needing to shut down the applications. Without
HyperSwap, one is required to shut down the sysplex, switch the disk configuration, and restart
systems and applications. The elapsed time for this is approximately two hours with significant
application availability impact. For a list of customer experiences, refer to the IBM World Wide
Customer Reference Database or contact the GDPS team by sending a note to GDPS@us.ibm.com.
Capacity and performance planning assistance for remote copy is available. Through the use of Disk
Magic and RMF™ Magic, your disk marketing specialist or your ITS specialist (via a fee-based
service) can help you plan and anticipate performance characteristics for specific workloads by
modeling proposed configurations.
Planning information
Customer responsibilities:
When ordering GDPS/PPRC HyperSwap Manager, the following fee offering is available to aid in
GDPS planning activities.
Direct customer support:
Installation and technical support is provided by IBM Global Services. For more information on
services, call 888-IBM-4343 (426-4343).
System integrity
IBM will accept APARs where the installation of GDPS/PPRC HM introduces an exposure to system
integrity.
Program services
Central service for suspected defects in GDPS/PPRC HM code is provided by the IBM Support Center
within your geography. On-site (local) support, although available in many geographies, is provided
as part of the IBM portfolio of fee-based services.
Service policy
The GDPS/PPRC HyperSwap implementation services offering includes one year of support for the
GDPS/PPRC HM automation code. This is a remotely delivered service that utilizes IBM RETAIN® for
problem entry and management. After the initial year a fee services offering for
Ongoing Support of GDPS/PPRC HM Automation Code
will be available and is recommended. The current version and one level back of GDPS/PPRC
HyperSwap Manager automation code will be supported (n,n-1). Appropriate prerequisite requirements
apply.
Security, auditability, and control
Data security and auditability are provided by the functions available in the z/OS and z/OS.e
products, including the optional Security Server for z/OS feature. The customer is responsible for
evaluation, selection, and implementation of security features, administrative procedures, and
appropriate controls in application systems and communication facilities.
The Integrated Cryptographic Service Facility (ICSF) provides application programs with callable
service interfaces to support the encryption and decryption of data using the cryptographic hardware
in the zSeries servers.
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Ordering GDPS/PPRC HyperSwap Manager
GDPS/PPRC HyperSwap Manager implementation is provided only through IBM Global Services. Call
888-426-4343 or send a note to GDPS@us.ibm.com. For more details and availability, visit the GDPS
Web site at
Key dates
-
February 15, 2005:
First date for ordering IBM Tivoli Systems Automation for GDPS/PPRC HyperSwap Manager with NetView
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February 15, 2005:
First date for ordering IBM Tivoli System Automation for z/OS for GDPS/PPRC HyperSwap
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February 15, 2005:
First date for ordering Implementation Services for GDPS/PPRC HyperSwap Manager
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For local charges, contact your IBM representative.
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To order, contact the Americas Call Centers, your local IBM representative, or your IBM Business
Partner.
To identify your local IBM representative or IBM Business Partner, call 800-IBM-4YOU (426-4968).
Phone: 1-888-IBM-CALL
Internet: GDPS@us.ibm.com
The Americas Call Centers, our national direct marketing organization, can add your name to the
mailing list for catalogs of IBM products.
Note:
Shipments will begin after the planned availability date.
Trademarks
-
-
GDPS, IBM.COM, Enterprise Storage Server, HyperSwap, and RMF are trademarks of International
Business Machines Corporation in the United States or other countries or both.
-
-
The e-business logo, Parallel Sysplex, S/390, zSeries, TotalStorage, z/OS, Tivoli, NetView, OS/390,
RETAIN, and eServer are registered trademarks of International Business Machines Corporation in the
United States or other countries or both.
-
-
Other company, product, and service names may be trademarks or service marks of others.
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