This document provides information for installing Adabas Caching.
Adabas Caching supports the following types of cache space.
| Operating System |
Cache Type: |
Cache Type: |
Cache Type: |
Cache Type: |
Cache Type: |
|---|---|---|---|---|---|
| z/OS | Yes | Yes | Yes | Yes | Yes |
| VSE/ESA | Yes | Yes | No | No | No |
| VM/ESA | No | Yes | No | No | No |
| BS2000 | Yes | Yes | No | No | No |
For information about setting up data spaces (or hiperspace if supported in your environment), refer to the documentation for the operating system. Specifically for 64-bit address space, refer to the IBM documentation SA22-7614-00, MVS Programming: Extended Addressability Guide, second edition October 2001, which applies to z/OS 1.2 and above.
The following prerequisites apply for Adabas Caching Version 8.1.4 only:
Adabas Caching Version 8.1.4 requires Adabas Version 8.1.4 or above.
Virtual 64-bit storage backed by large pages can only be used on IBM
z10 mainframes running z/OS Version 1.9 or above and for which IBM large page
support has been enabled via IBM APAR OA20902. You must also allocate the size
of the large page pool (use the LFAREA parameter in the
IEASYSxx member of SYS1.PARMLIB). The LFAREA parameter
allows you to specify the amount of real storage to be used for large pages;
this parameter cannot be changed dynamically and, if it is not set, page frames
will remain allocated at a size of 4K.
Adabas Online System (AOS), either the demo version delivered with Adabas or full version available as a selectable unit, is a prerequisite for using Adabas Caching Online Services (Natural application SYSACF). SYSACF is the online, menu-driven application used to monitor the Adabas Caching environment. It is included as part of Adabas Version 8.1 and above. Natural Version 3.1 or above is a prerequisite for AOS.
Adabas Caching requires storage for the RABN indexes to be acquired
above the 16MB line (AMODE=31). When using Virtual 64 or
Virtual 64 storage backed by large pages, the RABN indexes will be acquired in
Virtual 64 storage. This may require an adjustment to the
REGION size (machine size for VM/ESA users).
Determine the maximum available storage from your systems programming staff:
for extended memory usage (BS2000 and all ESA environments)
for data space (BS2000 - except RISC machines - and all ESA environments)
for hiperspace (z/OS environments only)
for virtual 64 storage (z/OS environments only)
for virtual 64 storage backed by large pages enabled by IBM z/OS 1.9
Large Page Support (z/OS environments only). Refer to the Prerequisites section
above regarding the use of the LFAREA parameter for
setting the size of the Large Page pool.
The cache type and sizes specified for Adabas Caching may have an effect on overall computer performance.
The installation tape for Adabas Caching contains the following dataset for z/OS:
| Dataset | Description of Contents |
|---|---|
| ACFvrs.LOAD | A load library containing the load modules ADACSH, ADACS1, ADACS6. |
| AOSvrs.INPL | Natural objects used for Adabas Caching Online Services. |
The installation tape for Adabas Caching contains the following dataset for VSE/ESA:
| Dataset | Description of Contents |
|---|---|
| ACFvrs.LIBR | A load library that includes the phases ADACSH and ADACS1. |
The Adabas Caching download for VM/ESA users contains one member: ACFVvvv TXTLIB. This txtlib needs to be added to the file SETTXTLB EXEC used to set the GLOBAL TXTLIB statement for nucleus startup. In addition, Caching ADARUN parameter cards need to be added to the control file used for nucleus startup.
The installation tape for Adabas Caching contains the following dataset for BS2000:
| Dataset | Description of Contents |
|---|---|
| ACFvrs.MOD | A load library containing the modules ADACSH and ADACS1. |
Use the INPL utility to load the objects required by ACF into the Natural system file. The objects are in the dataset AOSvrs.INPL. Refer to the Natural Administration documentation for further information about usage of this utility and its parameters. Please check the reports produced to ensure that no errors have occurred.
The ACFvrs.LOAD library must be added to the STEPLIB concatenation chain of the database start-up JCL.
The Adabas Caching load library must appear as the first STEPLIB DD statement if there are any concatenated load libraries.
The ADARUN parameter CACHE=YES must be included
in the Adabas nucleus start-up job to activate Adabas Caching. Other Adabas
Caching parameter settings are described in the section
Adabas Caching
Parameters.
to verify successful ACF installation, start Adabas Caching Online
Services as follows:
Log on to the application SYSAOS.
Select Caching Facility from the main menu.
For more information on the usage of Online Services, see section Adabas Caching Online Services.
