Advanced Copy Services comprises the following functions and enhancements. Mirror functions provide a consistent point-in-time copy of data at the recovery. The purpose of this publication is to help you understand and use IBM Advanced; Copy Services functions. It describes three dynamic copy. Abstract for DFSMS Advanced Copy Services. This information supports z/OS® ( ZOS) and contains information about Data Facility Storage Management.
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In our discussion, we leave open as to whether SY10 and SY11 are in the same or in different sites and whether Figure 10 depicts a single or multiple site workload configuration. Linux is a trademark of Linus Torvalds in the United States, other countries, or both. This swap operation leads first to a validation process to determine whether the primary and secondary PPRC Metro Mirror volumes are in a state that guarantees that the actual swap is going to be successful and does not cause any adanced exposure to the data volumes.
Metro Mirror relationship between A and B Volumes A and B are in a synchronous copy services relationship and are the base for potentially swapping both devices through HyperSwap. Volume B is the cascaded volume, and it has the following two roles: Other company, product, or service names may be trademarks or service marks of others. In contrast, GDPS provides a controlling supervisor through its controlling LPAR swhich manage not only coy result of a device swap operation but also offers complete Parallel Sysplex server management for planned and unplanned events.
You can send license inquiries, in writing, to: However, this table is not a complete list of all the relevant points of comparison. Before starting a new full initial copy between B and C, which is required, you might want to consider first saving the set of consistent volumes in D and then starting the initial copy between B and C.
Table of Contents (exploded view)
Thus, you must create a new zGM session and perform a full initial copy between volume A and volume C. This initial copy might run for several hours, and if any error occurs with the B volumes before the initial copy is completed and with all zGM volume pairs in DUPLEX state, the remote site servcies consistent source data volumes in D to restart. The next operation is a PPRC suspend of the volume pair. The next step is an SDM internal advance operation to swap its primary volumes from volume A to volume B.
Slide 1 – Western Cape Government. This information contains examples of data and reports used in daily business operations. A first step is most likely the HyperSwap operation itself. You may copy, modify, and distribute these sample programs in any form without payment to IBM, for the purposes of developing, using, marketing or distributing application programs conforming to the application programming interface for the operating platform for which the sample programs are written.
Because of the way light is reflected, there are two Figure 2 shows a MzGM configuration. An Ethernet route to the disk storage subsystem.
IBM z/OS V1R DFSMS Advanced Copy Services (SC) – United States
IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. Any functionally equivalent product, program, or service that copt not infringe any IBM intellectual property right may be used instead. This first attempt was intended to provide continuous application availability for planned swaps.
The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law: The process also includes adding new volumes or triggering a planned HyperSwap. In this configuration, the following differences advznced between these two management approaches: TPC-R manages the following two routes to the disk storage subsystems: IOS then handles and manages all subsequent activities following the swap of all device seevices defined within the TPC-R HyperSwap session, which includes a freeze and failover in the context of Metro Mirror management.
Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used.
As the name implies, it consists of a Metro Mirror relationship and a zGM relationship. At the same time, volume B is also the primary or source volume for volume C. Thanks to the following people for their contributions to this project: Any references in this information to non-IBM Web sites are provided for convenience only and do not in any manner serve as an endorsement of those Web sites. An even more severe problem was the time the process itself required to complete.
However, it is the user’s responsibility to evaluate and verify the operation of any non-IBM product, program, or service. He has written many IBM Redbooks and has developed and taught technical workshops.
Depending on what happens to the disk storage subsystems in C, an incremental resync to the zGM session can be handled through adfanced hardware bitmaps maintained in the zGM primary disk subsystem for each A volume.
TPC-R does not provide automation procedures that can be activated through certain events. This action contributes to high availability and even to continuous availability when performing a HyperSwap in a planned fashion for whatever reasons, and there are plenty of reasons. The HyperSwap function is made possible through the Avvanced Mirror relationship.
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Writes to SDM journal data sets on these Advanved volumes.
MzGM is a three-site multiple target configuration in a System z environment.