A dynamic device reconfiguration (DDR) record is created for each operator-initiated or system-initiated swap between direct-access devices having buffered logs and demountable disk packs (such as the IBM 3330, 3330 MOD 11, and 3340 devices) and between magnetic tape devices.
The DDR record identifies the physical devices involved in the swap.
--- RECORD ENTRY TYPE - DDR SOURCE - DDR MODEL - 3090 SERIAL NO. 170802
MVS/370 V2 R1
DAY YEAR HH.MM.SS.TH JOB IDENTITY CPSB46
042 97 20 32 10 71 C3D7E2C2F4F64040
FROM UCB DEVICE TYPE 32108003 TO UCB DEVICE TYPE 32108003
FROM CHANNEL UNIT ADDRESS 000580 TO CHANNEL UNIT ADDRESS 000581 1
FROM VOLUME SERIAL NUMBER F22011 TO VOLUME SERIAL NUMBER
FROM PHYSICAL ID 00 TO PHYSICAL ID 00
RECORD DEPENDENT SWITCH 50
SECONDARY STORAGE RECONFIGURATION
RECONFIGURATION PERFORMED AS A RESULT OF A PERMANENT ERROR
HEX DUMP OF RECORD
HEADER 60890A50 00000000 0097042F 20321071 61170802 30900000
0000 C3D7E2C2 F4F64040 C6F2F2F0 F1F10000 00000000 00000580 32108003 00000581
0020 32108003
SUMMARY OF DDR RECORDS DEV 000580
DAY YEAR DAY YEAR
RECORD DATE RANGE 042 97 042 97
MODEL - 3090 SERIAL NO - 170802
TOTAL NUMBER OF RECORDS=0001