Aug- 1, 1979
xii IBM VM/370 Data Areas and Control Blocks Logic
lug. 1, 1979
DDRREC
DDRREC is used in the SVC 76-initiated error recording process for type 60 DlSD dump
restore (DDR) dynamic device reallocation records. The reallocation records contain the replacement of the virtual "FROM" and "TO" control unit addresses (COA) by the real
addresses of the real DlSD devices. 0 8 10 18 20 28 30 38
Hexadecimal
Displacement
------------ 0 2
3
4
5
6
8
C 10 18 20 26
2C
2D 30 34
35
38 DDRKEYN DDRDTEN DDRVOL 1 DDRVOL2 DDRDEV1 DDRDEV2 Field
Name DDRKEYN DS DDRSWS1 DD DDRSWS2 DS DDRSWS3 DS DDRRECNT DS DDRSPE1 DS DDRDTEN DS DDRTMEN DS DDRCPID DS , I D*1 I/D*2/1/D*3/1/D*4/11IDDRSPE11111111It DDRCPID DDRJOB (cont. ) I D*5
tD*6
1H
1C D*1
1C D*2
1C D*3
1C D*4
1H
1F
1F
2F
DDRTKEN DDRVOL2 DDRCUl1 DDRCUl2 Field Description, Contents, Meaning
Type and operating system
Switch byte
Reserved for IBM use
Reserved for IBM use
Reserved for IBM use
Reserved for IBM use
Date
Time
Processor identification and model number Da!s DDRJOB DS DDRVOL1 DS DDRVOL2 DS DDRDEVP1 DS DDRCUl1 DS DDRDEV1 DS DDRDEVP2 DS DDRCUl2 DS DDRDEV2 DS DDRSIZE EQU 8X 6X 6X 1X D*5 3X 4X 1X D*6 3X 4X (*-DDRREC)
Job using FROM device Volume serial FR05 device Volume serial TO device
Device identification of FROM DlSD
Primary CUl of FROM device
Device type FROM device
Device identification TO DlSD
Primary CUl of TO device
Device type of TO device
DDR record size
section 1. CP Data Areas and Control Blocks 19
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