OERREC (Short OBR) OERRECN provides error, sense, and other statistical data needed for error recording on a
sFecified channel-attached 1/0 device.
18 20 30 L I OBRDEVSH I 0*1 OBRCUA I -----------------------------------------------------1 OBRSDRIN I I I I I II/IIIIIIIOBR SV1 1111/111111 I I Hexadecimal Field
tisplacement Name Field Description, Contents, fteaning 18
1D 20 20 2A
34 The 24-byte Header Record for the Short OER is identical tc
that of the Long OER, the description of which precedes this block. OBRDEVSH DS 1F £evice type OBRSDRSH DS 1X 0*1 Number of SIR work area bytes OBRSIZE EQU (*-OBRRECN) Size of short OBR record base OBRSIZE 1 EQU f*-OBR-R-ECN+1-) 18 Si-ze in doutlevords (X'04') OBRCUA DS 3X Channel and unit address OBRSDRIN DS 20X SDR work area ORG OBRSDRIN OBRSSDR 1 DS 10X SDR work area OBRSSDR2 DS 10X SDR work area OBRSV1 DS 1F Reserved for IBft use OBRSIZE2 EQU (*-OERRECN+7)/8 Size in doutlewcrds (X'07') 66 IBM VM/370 Data Areas and Control Block Logic
CiNDLIST. PAGTIELE OiNDLIST contains a list of all the system owned DAsr volumes that are used for paging, sFooling, and temporary disk storage activity. Each entry specifies the vclume identity and its preferred use (that is. space). This block is generated by the SYSOiN macro at system generation.
Bexadeciaal Field
tisplacement Naae ="'----------- 0 OiHDVSER 6 OWNDRDEV 6 OiNDPREF DS DS ORG DS OWNDVSER C16
1H OWNDRDEV 1H CWNDRDEV Field Description, Contents, fteaning Volu.e serial number Displacement of RDEVBLOK fer the volume
Allocation preference PAGTABLE is used by CP for allocating and referencing storage. It is referenced by the
segment table (SEGTABLE) data area and contains a pointer to the swaF table (SWPTABLE) in turn, is related to a DASD cylinder location. The SWPPAG field of SWFTAELE points to PAGTABLE.
-8 PIGSTMP o PAGSHR 8 PAGCORE Eexadecimal Field
Displacement Name
------------ -8 PAGSTMP DS 1F
4 PAGSWP DS 1F PIGACT PAG'lOT PAGSWP Field Description, Contents, fteaning Page table time stamp Count of active segment tahle entries
for this segment Count of total segment table entries
for this segment Pointer to NAME table (SBRTAELE) Pointer to swap tatle (SiP'lAELE) Section 1. CP Data Areas and Control Blocks 61
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