Operating environment

BMC AMI Recover requires the operating environment described in this section.

Db2 support

This version of BMC AMI Recover supports IBM Db2 Versions 10, 11, and 12. Db2 Version 10 is supported only in new-function mode.

System requirements

This version of BMC AMI Recover supports all versions of the IBM z/OS system that IBM supports and that are compatible with IBM Db2 Versions 11 and 12.

Following are some considerations based on operating system level:

If you are running z/OS Version 1.7 or later, you can use BMC AMI Recover to recover table spaces and index spaces by using large format (greater than 64 K tracks) archive logs and image copies.
If you are running z/OS Version 1.10 or later, BMC AMI Recover supports extended address volumes (EAVs) for Db2 spaces, Instant Snapshot copies, active logs, and the BSDS.
If you are running z/OS Version 1.11 or later, BMC AMI Recover supports archive logs and sequential image copy data sets in the cylinder-managed portion of EAVs.
Important
You cannot use an image copy made to the cylinder-managed portion of an extended address volume (EAV) under z/OS Version 1.11 on z/OS Version 1.10 because z/OS Version 1.10 does not support sequential data sets in the cylinder-managed portion of an EAV.
IDCAMS and DSNUTILB must be available in the system LPA, LINKLIST, JOBLIB, or STEPLIB.

zIIPs

BMC AMI Recover ascertains if the system has IBM z Integrated Information Processors (zIIPs). If it does, BMC AMI Recover offloads as much processing as possible to zIIP processors.

Tip

When you use zIIPs, we recommend that you specify IIPHONORPRIORITY=YES in the IEAOPT member of SYS1.PARMLIB.

You can disable use of zIIP processors by specifying OPTIONS ZIIP DISABLED.

Setting the MEMLIMIT parameter

The following products and components require above-the-bar memory and might abend if sufficient memory is not available:

ALTER
BMCSORT
Catalog Manager
Change Manager
CHECK PLUS
BMC AMI Copy
DASD MANAGER PLUS
High-speed Apply Engine
LOADPLUS
Log Master
BMC AMI Recover
BMC AMI Recovery Manager
REORG PLUS
UNLOAD PLUS

In z/OS versions before 1.10, the default value for the System Management Facility (SMF) MEMLIMIT parameter is 0; a value of 0 means that no address space can use virtual storage above the bar. In z/OS Version 1.10 and later, the default value is 2 GB.

For most jobs, we recommend a value of at least 1 GB for the MEMLIMIT parameter. However, if you are operating on LOB or XML data, we recommend a value of at least 32 GB.

This value is set in member SMFPRMxx in SYS1.PARMLIB. Use any of the following methods if you need to override the default value:

Specify the MEMLIMIT parameter in the JCL.
Specify REGION=0M in the JCL.
Use the SMF IEFUSI exit.

Software requirements

This version of BMC AMI Recover has the following requirements for additional IBM or BMC:

You must have a minimum of version 12.1.00 of the BMC Db2 Solution Common Code (SCC) installed.
If you want to offload eligible processing to a zIIP, you must have installed a minimum of version 6.2 of either XBM or SUF.
If you use the XBMID option to specify a particular XBM subsystem, that subsystem must be at this maintenance level. If you do not specify a particular XBM subsystem and ZIIP ENABLED is in effect, BMC AMI Recover searches for an XBM subsystem at this level.
To use any features that invoke DSNUTILB, you must have installed the IBM Db2 RECOVER utility.
Important
If BMC AMI Recover invokes DSNUTILB, the call displays in the AFRPLAN and AFRPRINT output files, and DSNUTILB messages display in the AFRPRnnn output files.