VM370 Rel 6 Data Areas and Control Block Logic (Mar79)
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MOBCOM Hexadecimal Field Displacement Bame Field Description, Contents, Meaning 104 MOBBUF1V EQU MOBBUF1+4 First buffer address of remaining variable number of buffers. There is one 4-tyte entry for each monitor buffer. The last field contains X'FFFFFFFF' ftOBSIZB BQU (*-MOBCOM)/8 Size of DSECT in doutlewords !lag§ DftKSYSAT AUTOGO EQU----X' 80' AUTOSPL BQU X'40' ftOBSLMT BQU ftOBBUFAV BQU ftOBBUFAC BQU X'20' X'01' X'03' SISMON setting for AUTODISK cn Stop monitor when spool file record limit is reached Sampling for real time Monitor FIM in 1 of of !£!: .§pool Not collecting; being used fer output Available fcr use Current active collector Flag in 1Q of Spool Buffer TRAP BQU X'80' Last buffer queued for I/O UBFIB BQU X'40' Close occurred tefore the buffer was full File Control ]lock SFBeOB EQU --ii 01' - l!onitor sFocl file ide-ntifier 58 IBM VM/370 Data Areas and Centrol Block Logic
l!SSCOl! MSSCOM contains information necessary to request a l!SS volume mount, request a MSS volume demount, or ccmplete processing when a pack change interrupt is received on a l!SS device. The MSSCOM tlocks are chained frcm location in module D!KSSS. 0 8 10 18 20 Hexadecimal Displacement ------------ 0 6 8 C 10 14 18 1C 24 r I HSSSER I I////////MSSRSRVD/////////I I I MSSTASK2 I I MSSNEXT I I HSSUSER (cont.) Field Name MSSSER DS CL6 MSSVUA DS XL2 MSSRSRVD DS 1F HSSTASK1 DS 1F MSSTASK2 DS 1F MSSTASK3 DS 1F MSSNEXT DS 1F MSSUSER DS CLS MSSFLAGS DS X12 in MSSFLAGS MOUNT EQU -X'8000'- EQU X'2000' MSSERR EQU X'400' RQENT EQU X'SO' MQENT EQU X'40' INPROC EQU X'20' aSGPROC EQU X'10' 8SSVUA MSSTASK1 MSSTASK3 aSSUSEB MSSFLAGS Field Description, Contents, Meaning Volume serial number of the l!SS volume to te mounted or demounted Device address for the volume Beserved for IBl! use Pointer to a CPEXBLOK for a pending pack change interrupt Pointer to a CPEXBLOK for a pending MSC return on mount or demount Pointer to a CPEXBLOK for an I/C request to a volume being mounted Next entry in the chain, or zere Name of the virtual aachine that requires the activity Einary flags representing the status of the request Mount volume aSSSER on address HSSVUA Demount MSSSER from MSSVUA The l!SC detected an error while attempting the requested action This request is waiting to be passed to the l!SC This request has been passed to the l!SC, and is awaiting a pack change interrupt This request being processed by the l!SC The esc has completed for this request and message DMKSSS0881 is being sent MSSSIZE EQU (*-MSSSER)/8 asscoa size in doublewords Section 1. CP Data Areas and centrel Elocks 59