Offsets | Name | Length | Format | Description |
---|---|---|---|---|
0 0 | ST74ORMN | 16 | EBCDIC | OAM request member name. Valid for subtypes 74 and 75. |
16 10 | ST74OTMN | 16 | EBCDIC | OAM target member name. Valid for subtypes 74 and 75. |
32 20 | ST74OLN | 8 | EBCDIC | Optical library name. |
40 28 | ST74OLDT | 8 | EBCDIC | Optical library device type. |
48 30 | ST74OLDN | 4 | EBCDIC | MVS device number that corresponds to the optical library. |
52 34 | ST74ODN | 8 | EBCDIC | Optical drive name. |
60 3C | ST74ODDT | 8 | EBCDIC | Optical drive device type. |
68 44 | ST74ODDN | 4 | EBCDIC | MVS device number that corresponds to the optical drive. |
72 48 | ST74ODT | 1 | EBCDIC | Optical drive type:
|
73 49 | ST74OVT | 1 | EBCDIC | Optical volume type
|
74 4A | ST74SGN | 8 | EBCDIC | Storage group name. |
82 52 | ST74LIQT | 4 | binary | LCS input-work-queue time. The amount of time in milliseconds that this request has spent on the LCS input-work-queue waiting for processing. |
86 56 | ST74LDQT | 4 | binary | LCS dispatcher-queue time. The amount of time in milliseconds that this request has spent on the LCS dispatcher-queue waiting for processing. |
90 5A | ST74LEQT | 4 | binary | LCS execution-queue time. The amount of time in milliseconds that this request has spent on the LCS execution-queue processing. |
94 5E | ST74LXQT | 4 | binary | XCF cross system processing-queue time. The amount of time in milliseconds that this request spent being processed on the XCF cross system queue. For subtypes 76 and 77, this field contains binary zeros. |
98 62 | ST74OVMT | 4 | binary | Optical volume mount time. The amount of time in milliseconds that it took to mount the optical disk volume required by this request. This field is valid if bit 1, 2, or 3 in field ST74FLGS is on. This field is valid for subtypes 74, 75, and 77. |
102 66 | ST74OVDT | 4 | binary | Optical volume demount time. This is the amount of time in milliseconds that it took to demount the optical disk volume that was mounted prior to mounting the optical disk volume required by this request. The field is valid if bit 3 in field ST74FLGS is on. This field is valid for subtypes 74, 75, and 77. |
106 6A | ST74FLGS | 4 | binary | Processing flags
|
110 6E | ST74NOBJ | 4 | binary | Total number of objects in this request. The maximum possible for this field is 280. With 280 object entries, the maximum SMF record size is 32 744 bytes. |
114 72 | ST74NKBP | 4 | binary | Total number of kilobytes of object data in this request. |
118 76 | ST74SOBJ | 4 | binary | Total number of objects in this request that processed successfully. |
122 7A | ST74SKBP | 4 | binary | Total number of kilobytes of object data in this request that processed successfully. |
126 7E | * | 14 | binary | Reserved. |
Note: The following fields (comprising 116 bytes) are repeated for each
object in the chained request, that is for the number of objects specified
in the ST74NOBJ field. The maximum number of times that the following
fields will be repeated is 280. With 280 object entries, the maximum
SMF record size is 32 744 bytes.
|
||||
140 8C | ST74COLN | 44 | EBCDIC | Collection name. |
184 B8 | ST74OBJN | 44 | EBCDIC | Object name. |
228 E4 | ST74OLEN | 4 | binary | Object length. |
232 E8 | ST74OOFF | 4 | binary | Object offset. Valid for a subtype 75 partial object read. |
236 EC | ST74VSN | 6 | EBCDIC | Volume serial number. |
242 F2 | ST74OMT | 2 | EBCDIC | Optical media type:
Note: CCW = continuous composite WORM media. WORM
= write-once-read-many.
|
244 F4 | ST74OTKN | 4 | binary | Object volume location token. |
248 F8 | ST74RC | 4 | binary | LCS return code. |
252 FC | ST74RS | 4 | binary | LCS reason code. |
Although subtypes 74–77 share a common subtype data section, not all fields are valid for each of the four subtypes. Table 2 identifies which fields in the OAM subtype data section are valid for each of the four subtypes.
Field name | Optical write request subtype 74 | Optical read request subtype 75 | Optical delete request (logical) subtype 76 | Optical delete request (physical) subtype 77 |
---|---|---|---|---|
ST74ORMN | X | X | ||
ST74OTMN | X | X | ||
ST74OLN | X | X | X | X |
ST74OLDT | X | X | X | X |
ST74OLDN | X | X | X | X |
ST74ODN | X | X | X | |
ST74ODDT | X | X | X | |
ST74ODDN | X | X | X | |
ST74ODT | X | X | X | |
ST74OVT | X | X | X | X |
ST74SGN | X | X | X | X |
ST74LIQT | X | X | X | |
ST74LDQT | X | X | ||
ST74LEQT | X | X | X | |
ST74LXQT | X | X | ||
ST74LVMT | X | X | X | |
ST74LVDT | X | X | X | |
ST74NOBJ | X | X | X | X |
ST74NKBP | X | X | X | X |
ST74FLGS | X | X | X | X |
ST74SOBJ | X | X | X | X |
ST74SKBP | X | X | X | X |
ST74COLN | X | X | X | X |
ST74OBJN | X | X | X | X |
ST74OLEN | X | X | X | X |
ST74OOFF | X | |||
ST74VSN | X | X | X | X |
ST74OMT | X | X | X | X |
ST74OTKN | X | X | X | X |
ST74RC | X | X | X | X |
ST74RS | X | X | X | X |