Page of GC20-1834-0 Updated Aug. 1, 1979 by TNL GN25-0486 GC20-1809 OLTSEP and Error Recording Guide SY20-1884 Data Areas and Control Block Logic SY20-1886 System Logic and Problem Determination Guide -- Volume 1 Section 1. Summary of Changes to the VK/370 System 1-30.1
Page of GC20-1834-0 As Updated Aug. 1, 1979 by TNL GN25-0486 Multiple Service Record File The Service Record File (SRF) device (7443 diskette) supported by VM/370 allows the enhanced CPEREP program to be independent of processor model and EC level for the 3031, 3032, and 3033 processors. Each 303X processor has a 3036 console. The 3036 console has two operating stations, designated as the operator's console and the service support console. Each operating station contains an SRF device. The SRF contains "frames" that consist of format and conversion information used to display machine or channel dependent logout data on the service support console or on the EREP Edit output. CPEREP uses the frames to format MCH and CCH records for the 3032: and 3033 Processors: The frames are read from the SRF device by VM/370, formatted as records, and placed at the beginning of VM's error recording cylinders. For a detailed description of CPEREP's use of SRF frames, refer to the OLTSEP and Error Recording Guide. A 3033 Attached Processor configuration has two 3036 consoles. Each of the four operating stations contains an SRF device. VM/370 will support the specification of multiple SRF devices at system generation on the RIOGEN macro. Each time the VM/370 error recording cylinders are formatted, an attempt will be made to access each SRF in the list, and to read frames from the device and place them on the error recording cylinders. CPEREP processing will match the error records generated on the main or attached processor with the frame records from that processor's SRF device. It is recommended that the SRF addresses specified be those of the SRFs in the service support consoles. All SRF devices may be specified. However, CP processing will ignore inaccessible SRF devices. For a detailed description of the system generation definition of SRF devices, refer to VM/170 Planning and System §Ylg!. , SRL AND PROGRAM LOGIC PUBLICATIONS The following publications contain information on VM/370 support of Multiple SRFs: GC20-1801 Planning and System Generation Guide GC20-1808 System Messages GC20-1809 OLTSEP and Error Recording Guide GC20-1821 Operating Systems in a Virtual Machine SY20-1884 Data Areas and Control Block Logic SY20-1886 System Logic and Problem Determination Guide -- Volume 1 1-30.2 IBM VM/370 Release 6 Guide