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z/VM: CP Commands and Utilities Reference - z/VM - IBM

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Usage Notes<br />

TAPE<br />

indicates that trace data is to be recorded on tape. This option is valid only for<br />

recording <strong>CP</strong> system trace tables.<br />

rdev1 [rdev2]<br />

indicates that the <strong>CP</strong> trace table data captured by this trace should be recorded<br />

on the tape drive at the specified device number. Either one or two tape drives<br />

can be specified on any tape option. These tape drives must be system drives<br />

<strong>and</strong> must not be attached to any users.<br />

If two tape drives are specified, <strong>CP</strong> automatically switches to the alternate tape<br />

drive when it encounters an end-of-tape mark.<br />

MODE mode<br />

selects the recording format in which data will be written on the tape. On 3422<br />

tape devices, you can specify the recording format (the MODE) only at the<br />

beginning of a tape volume. No changes in the format can be made after this<br />

initial designation. On 3480, 3490 (including 3490Es), <strong>and</strong> 3590 tape devices,<br />

you can change the recording format (the MODE) each time you choose to<br />

write to a tape volume. After you write to a volume, the MODE value returns to<br />

the default value for that particular tape device. If you wish to write to the tape<br />

in a different recording format next time, you must again specify the MODE<br />

value.<br />

The table below specifies the valid <strong>and</strong> default mode option values for<br />

supported tape devices:<br />

Device Type Valid Device-<br />

Dependent (MODE<br />

mode) Option Values<br />

Valid Device-<br />

Independent (MODE<br />

nnnn) Option Values<br />

3422 1600, 6250 n/a 1600<br />

3480 38K n/a 38K<br />

3480 w/IDRC XF, 38K COMP 38K<br />

3490 3490C COMP 3490C<br />

3590 n/a COMP COMP<br />

Device (MODE<br />

mode) Default Value<br />

To determine which device to use, attach the tape device to your userid <strong>and</strong><br />

issue the 'Q V TAPE' comm<strong>and</strong>. Then detach the tape device.<br />

RUN<br />

specifies that the tape is rewound <strong>and</strong> unloaded when it fills. This is the default.<br />

REWind<br />

specifies that the tape is rewound but not unloaded when it fills. Recording<br />

continues to either the other tape drive devoted to <strong>CP</strong> tracing or the tape drive<br />

on which the tape was just filled.<br />

1. The destinations for trace data are not saved across system hard abends.<br />

Therefore, the destination for the trace data should be saved in EXECs.<br />

TRSAVE<br />

2. The parameter TAPE <strong>and</strong> tape options can only be used on TRSAVE FOR <strong>CP</strong><br />

comm<strong>and</strong>s.<br />

3. TRSAVE FOR ID traceid cannot be issued when traceid has been enabled<br />

using the TRSOURCE comm<strong>and</strong>.<br />

4. The optional destination parameters, TO, NAME, SIZE, <strong>and</strong> KEEP for DASD,<br />

<strong>and</strong> MODE, RUN, REWIND for TAPE may be specified in any order.<br />

Chapter 2. <strong>CP</strong> <strong>Comm<strong>and</strong>s</strong> 1667

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