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Hitachi Business Continuity Manager v9.8.3-00 Release Notes

About this document

This document (RN-00HS270-55, August 2022) provides late-breaking information about Hitachi Business Continuity Manager v9.8.3-00 (FMID: CHYK952/ CHYK953/ CHYK954/CHYK955). It includes information that was not available at the time the technical documentation for this product was published, as well as a list of known problems and solutions.

Intended audience

This document is intended for customers and Hitachi Vantara partners who license and use Hitachi Business Continuity Manager.

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About this release

This is a major release that adds new features.

Product package contents

Medium

CD-ROM

Revision

Software

Hitachi Business Continuity Manager

9.8.3-00

New features and important enhancements

Item

New features and enhancements

New support

This function prevents users to whom permission is not granted in the profiles from performing resynchronization that transfers data in a direction that is the reverse of the copy direction including while in an online state.

System requirements

Operating system requirements

Operating system

z/OS V1R13 to V2R5

License keys

License keys

This version requires a 75-character license key.

Firmware levels

Storage system

Required microcode version

Storage system support function

Hitachi Virtual Storage Platform (VSP) 5600, 5200, 5300H, 5600H

90-08-00 or later

0x53 or earlier

Hitachi Virtual Storage Platform (VSP) 5500, 5100, 5500H, 5100H

90-01-40 or later

0x53 or earlier

Hitachi Virtual Storage Platform (VSP) G1000, G/F1500

80-05-01 or later

0x4A or lower

Note: In the rest of this document, VSP 5600, 5500, 5200, 5100, 5600H, 5500H, 5200H, 5100H is referred to as VSP 5000 series.

Prerequisite programs

Program name

Notes

DFSMS™

Standard OS component

ISPF

Standard OS component

TSO/E

Standard OS component

TSO/E REXX

Standard OS component

Security Server

Required to use the resource access control facility (RACF™)

IBM™ Library for REXX on zSeries™ Release 4 (FMID HWJ9140)

or

IBM Library for REXX on zSeries Alternate Library (FMID HWJ9143)

The REXX Alternate Library is included in the standard OS component.

Related Programs

Requirements for linking with Replication Manager

The following software programs are required when using Replication Manager to collect mainframe system storage information.

Program name

Description

Notes

IBM Communication Server

A communication program

Standard OS component

Replication Manager

A program required to define, use, and monitor copy pairs.

8.8.4-00 or later

IBM HTTP Server for z/OS

An optional product bundled with WebSphere™ Application Server for z/OS. This is required when establishing IPv6 connections or HTTPS communication with Replication Manager.

In addition, z/OS Security Level3 is required when establishing HTTPS communication with Replication Manager.

Note: When you use this function in z/OS V2R2, you must apply PTF (UI34846).

Use version 6.1.

Requirements when running z/OSTM on z/VMTM

The following software programs are required when running BC Manager z/OS on z/VM.

Program name

Notes

z/VM

Confirm supported versions with Hitachi Vantara.

Requirements for 2DC configuration environments with HyperSwap and Universal Replicator

The following software program is required when running BC Manager in a 2DC configuration with HyperSwap and Universal Replicator.

Program name

Notes

IBM™ Copy Services Manager

6.1.0 or later

Memory and disk space requirements

Virtual memory requirements

Running BC Manager requires the following user regions:

·         For a user region of 16 MB or less:

1,024 KB

·         For an extended user region of 16 MB or more:

o   For TSO/E:
4,000 KB +
(1 × number-of-volumes) KB +(3.5 × number-of-copy-pairs) KB

o   For Batch:
4,000 KB +
(1 × number-of-volumes) KB +(2.5 × number-of-copy-pairs) KB

o   For running the YKIMPORT command:
4,000 KB +
(1 × number-of-volumes) KB + (2.5 × number-of-copy-pairs-to-create) KB + (3 × number-of-BASEGROUP-copy-pairs) KB

o   For running the YKBTSCAN command:
4,000 KB +
(1.5 × number-of-volumes-to-scan) KB +(2 × number-of-scanned-volumes) KB

-        number of volumes: Number of all volumes included in DAD used. When two or more copy groups are used, this is the sum total of the number of volumes that each copy group uses.

-        number-of-copy-pairs: Number of copy pairs in the copy group definition file to use.

-        number-of-copy-pairs-to-create: Number of copy pairs to create by using the YKIMPORT command.

-        number-of-BASEGROUP-copy-pairs: Number of copy pairs in the copy group definition file to use as a base.

-        number-of-volumes-to-scan: Total number of volumes included in the range to scan by using the YKBTSCAN command.

-        number-of-scanned-volumes: Total number of volumes in the disk configuration definition file if you run YKBTSCAN to add volumes to an existing disk configuration definition file.

-        A × B: Indicates that the result of A × B is rounded up to the nearest integer.

The following indicates the user region that is required when linking with Replication Manager. The PREFIX parameter and DEVN parameter in the following formula are the initialization parameters of the BC Manager agent.

·         For a user region of 16 MB or less:

2,048 KB

·         For an extended user region of 16 MB or more:

6,000 KB + A KB +(512 × number-of-specified-PREFIX-parameters) / 1,024 KB+(64 × number-of-specified-DEVN-parameters) / 1,024 KB

o   A: The larger value of the following: the value of (1.5 × D) and the result of (3 × P).

o   D: Among the numbers of devices specified for the DEVN parameters, the highest number of devices.

o   P: Among the copy groups used by the BC Manager agent, the highest number of copy pairs in any group.

o   Where "A / B" indicates rounding up the decimal numbers from the result of A / B.

The amount of memory required to use BCM Monitor is as follows:

·         For a user region of 16 MB or less:

2,048 KB

·         For an extended user region of 16 MB or more:

6,000 KB + (3 × number-of-copy-pairs) KB + (C + S) × 1 KB

o   C: Number of copy group parameters specified in the YKMONCG file.

o   S: Number of action parameters specified in the YKMONCG file

Disk space requirements

Files to install

Required space (in unit of tracks)

Number of directories

HDSYSAMT

30 tracks

5

HDSYLNKT

150 tracks

40

HDSYLPAT

1 track

1

HDSYPRCT

5 tracks

10

HDSYEXET

30 tracks

10

HDSYEXVT

30 tracks

10

HDSYPNLT

60 tracks

200

HDSYMSGT

5 tracks

5

HDSYTABT

5 tracks

5

Resolved problems

None.

Known problems

None

Installation precautions

For details about installing BC Manager, see the Hitachi Business Continuity Manager Installation Guide.

·         Before starting the installation, ensure that there is sufficient dataset capacity and the number of directories in the distribution libraries and the target libraries that are required for installation.

·         If BC Manager, mainframe analytics recorder, and HTSM for Mainframe exist in the same system, the User SVC in the newer version of any of the products should be registered.

Version description

The Main Menu panel displays the version number of this product as follows:

·         Version 9.8.3-00

The ISPF Setting Information panel and the YKINSCHK command YKK001I message output display the version number of this product as follows:

·         Version 9.8.3-00 (00)

The YKDSPENV command YKT400I message output displays the version number of this product as follows:

·         9.8.3-00  

The YKY001I message output when Agent starts displays the version number of this product as follows:

·         9.8.3-00  

The YKENV command displays the version number of this product as follows:

·         9.8.3-00 (00)

The YK8001I message output when BCM Monitor starts displays the version number of this product as follows:

·         9.8.3-00  

In the "Installing Business Continuity Manager" and "Modifying Sample JCL" sections of the Hitachi Business Continuity Manager Installation Guide, replace CHYKnnn and Vnnnnnn as follows:

In the manual

Replace with

CHYKnnn

CHYK952

Vnnnnnn

V098300

If the access protection function for copy group is required, replace CHYKaaa, CHYKbbb and CHYKccc as follows:

In the manual

Replace with

CHYKaaa

CHYK953

CHYKbbb

CHYK954

CHYKccc

CHYK955

User SVC version that corresponds to this product version

The User SVC version that corresponds to this product version is version 9.3.0-00(00) or later.

This information appears in the User SVC Information panel and in the result when running the YKINSCHK command.

Usage precautions

User SVC

BCM, HTSM for MF, and MAR (mainframe analytics recorder) share the same user SVC.

System Configuration

·         BC Manager supports 2DC configuration (1:1). By making multiple units of 2DC configurations, you can create N:N configurations.

·         BC Manager supports 3DC (TC-Sync and UR) configurations (Cascade configurations and Multi-Target configurations). Note that 3DC configurations are supported only when all storage systems in the configuration are VSP G1000, VSP G1500, VSP F1500 or VSP 5000 series. N:1 configurations and configurations that consists of four or more DCs are not supported.

·         BC Manager supports 4x4 and 4x4x4 Multi-Target configurations. Note that the configuration must consist entirely of VSP G1000, VSP G1500, VSP F1500 or VSP 5000 series.

·         BC Manager supports 4x4x4 Cascade configurations. Note that the configuration must consist entirely of VSP G1000, VSP G1500, VSP F1500 or VSP 5000 series.

Remote DKC control function

·         When using the Remote DKC control function, use a Fibre Channel link for the connection between storage systems. ESCON™ links are not supported. When you define the logical path between the CUs for the Remote DKC control function, you must define the path between CUs that belongs to the command device volumes.

·         To share a command device among multiple OSs, ensure that the “&YKCMDIF” variable is either defined in the IEASYM member or set by using the START YKSETENV command.

·         When allocating a command device, note the following:

o   If a command device is defined within a parity group, the parity group cannot be moved and the parity group type cannot be changed.

o   The command device between LCUs cannot be moved.

o   The volume size of the command device cannot be changed.

·         When defining a multiple command device line, BCM recommends the following command device setting to reduce CLI command response time:

o   The number of command devices for a head storage system of a route list should be seventeen or less.

Copy types

Do not mix copy types within a single copy group. Ensure that all volumes are SIMPLEX in the initial state. BC Manager does not display the pair status correctly in the following conditions:

·         A copy group definition is changed when not all pairs are SIMPLEX.

·         A pair configuration in a copy group definition differs from the actual pair configuration.

Other

·         BC Manager does not support multiplatform volumes.

·         After replacing the microcode, scan the storage system.

·         Specify a different storage system serial number for P-VOL and S-VOL when you define the copy group definition for copy types other than SI.

·         Do not specify a different DADID from the DADID in a copy group definition when you specify a DADID in the Set Defaults panel or in the YKLOAD command operand.

·         Do not perform PPRC operations on BCM copy pairs. If you do, dissolve and reestablish the copy pairs using BCM.

You can resynchronize copy pairs with the CESTPAIR command by using the default operands only if you run the CSUSPEND command with the default operands on the BCM copy pairs as a TC copy group without the C/T group ID.

Documentation

Available documents

Manual name

Manual no.

Issue date

Hitachi Business Continuity Manager User Guide

MK-94RD247-44

August 2022

Hitachi Business Continuity Manager Installation Guide

MK-95HC104-40

August 2022

Hitachi Business Continuity Manager Reference Guide

MK-96HC135-39

August 2022

Hitachi Storage Management Software for Mainframe Message

MK-92HC227-18

August 2022

About Storage System features

4x4x4 Multi-Target Configurations without the Delta Resync Function is supported. Refer to the Explanation and Usage document “4x4x4 Multi-Target Configuration without the Delta Resync Function” for details.

Temporary Restrictions

·         In a configuration in which VSP G1000, VSP G1500,  VSP F1500 and VSP 5000 series coexist, BC Manager can manage this configuration only when it consists of devices with serial numbers that are not duplicated (for example, each device in the configuration has a unique serial number).

·         When using BC Manager to operate from L-site in a 4x4x4 Multi-Target configuration with Delta Resync, do not perform a Resync on a UR copy pair that was automatically suspended after performing Reverse Resync on TC copy pairs to avoid forming a 3DC Cascade configuration.

·         When using BC Manager to operate from L-site in a 4x4x4 Multi-Target configuration with Delta Resync, start business operations after TC and UR copy pairs are formed so that the Multi-Target configuration is established.

·         BC Manager does not support a recovery procedure from a failure in 4x4x4 Multi-Target configuration with Delta Resync. In this case, the procedure is provided as necessary in the following process.

·         The YKWATCH command is not available for monitoring a copy pair status transition if the PPRCSUM feature in DEVSUPxx is enabled in z/OS V1R13 or later. Use the YKEWAIT command to monitor, instead.

·         If the disk configuration definition file that has the specified prefix includes a subchannel set ID other than 0, the disk configuration file is not available for linking with Replication Manager.

·         If you must call Hitachi Vantara customer support, make sure to provide as much information about the problem as possible, including:

o   Circumstances surrounding the error or failure.

o   Content of any error messages displayed on the host systems.

o   Content of any error messages displayed in Storage Navigator.

o   Storage Navigator configuration information (use the FD Dump Tool).

o   Service information messages (SIMs), including reference codes and severity levels, displayed by Storage Navigator.
Hitachi Vantara customer support is available 24 hours a day, seven days a week. To reach us, visit the support Web site for current telephone numbers and other contact information:
https://support.hitachivantara.com/

o   If you purchased this product from an authorized Hitachi Vantara reseller, contact the reseller for support.

Specification differences from the previous versions

This section describes the specification differences between v9.8.2 and v9.8.3 of BC Manager.

Item

Specification in V9.8.2

New specification in V9.8.3

YKRESYNC

-

When the Reverse Resync Protect feature is enabled, it checks the copy direction reversal operation permissions for the copy direction reversal operation and the online state volume.

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