The IOCB command prints the I/O control block (IOCB) specified by the simple address or ASD number. If the specified area is not an IOCB, then DUMPANALYZER displays an error message.

Syntax

── IOCB ─┬──────┬─<simple address>─┬───────────────────────────────────┤
         ├─ AT ─┘                  │
         └─ VIA ──<ASD number>─────┘

Explanation

The following text describes the meaning of each construct. Refer to “Basic Constructs” earlier in this section for information about the <simple address> and the VIA <ASD number> constructs.

IOCB <simple address> IOCB AT <simple address>

Used to analyze both IOCBs. The word located at the simple address is a descriptor that refers to an IOCB.

IOCB VIA <ASD number>

Analyzes and prints the IOCB located at the ASD number.

Example

The following example shows output from the IOCB command.

IOCB VIA 15fC0
  * SOFTWARE IOCB ANALYSIS *  (IOCB ASD INDEX = 015FC0),(IOCB @ 004D6604)
  IOCW:          0 030000 56E795   WRITE, 8-BIT, MEMORY PROTECT
  LOGICAL RD:    0 000B40 000000   180 CHARACTERS TRANSFERRED
  LAST RESULT:   ERROR FREE RESULT
  CTL COMMAND:   HARDWARE GENERATED WRITE
  IOP RESULT:    0 000000 000000
  CTL RESULT:    0 000000 000000 0 000000 000000 0 000000 000000 0 000000 
                 0 000000 000000 0 000000 000000 0 000000 000000 0 000000 
  AREA DESC:     D 540000 0013DC Desc [Present-copy]: ASD=009EE2,
                 Address=004500E3,EBCDIC, Index=0+0,Reindexable(Mom @
                 2001 in ASD 00DDA2)(Mom @ 0149 in Stack 0C6B)
  IO MARK WORD:  0 10CB00 168440
  MISCELLANEOUS: INITIATING STACK = 0C71, OWNERSTACK = 0C6B,
                 FIB REFERENCE = D F00003 A0190B, EVENT REFERENCE = 
                 D 510000 102FD8 UNIT = 64, INITIATING PORT = 6,
                 INITIATING CTL = 31, COMPLETING PORT = 6, 
                 COMPLETING CTL = 31, SOFTWARE REQUESTOR = 2, ERROR MASK
                 = 4'00000', LOGICAL UNIT NUMBER = 30,RELATIVE CQ = 4'0'
                 LOGGED RDS COUNT = 0,RETRY COUNT = 0, REQUEST LENGTH =
                 180, RESPONSIBLE IOU = 0,JOB TIME CELL = 4'0000582E',
                 TIME CELL = 4'0000582E', DEVICE TIME CELL =
                 4'0000001426', FIXED BLOCK I/O, AUTOSENSED
  RAW IOCB:
     0 10CB00 168440  0 010607 D79040  0 000000 000000  0 000000 000000
     0 000000 000000  0 000000 000000  D 540000 0013DC  0 C00000 2000B4
     0 0C710C 6B08B0  0 000000 56E795  0 000697 4089CB  0 000400 00582E
     0 000000 001426  0 000B40 000000  0 A00607 F00000  0 8180A2 009846
     D F00003 A0190B  D 510000 102FD8  0 000000 000000  0 000000 000000
     0 0005A0 080E45  0 030000 56E795  0 400000 000000  0 3DC401 FE0000
     0 000000 000000  0 000000 000000  0 000000 000040  0 000000 000000
     0 001E00 000000  C 540000 0013DC  0 001E00 000000  C 100000 002BF8
     0 000000 000000  0 000000 000000  0 000000 000000  0 000000 000000
     0 000000 000000  0 000000 000000  0 000000 000000  0 000000 000000
     0 000000 000000  0 000000 000000  0 000000 000000  0 000000 000000
     0 000000 000000  0 000000 000000  0 000000 000000  0 000000 000000
     3 008900 0000B4  5 006000 4500E3  0 000000 000008  B 000000 000000
     B 000000 000000  0 000000 56E795  0 000000 000000  0 000000 000000
     0 000000 000000  0 000000 000000  0 000000 000000  0 000000 000000
     0 000000 000000  0 000000 000000  0 000000 0000B4  5 006000 450101