gtps4m1vSystem Generation

File Capture and Restore

The capture and restore packages enable the user to capture all or part of his system at a given condition and restore the system to a predetermined condition in the event of a hardware or software failure. MDBF users of the HPO feature may capture/restore individual subsystems. For additional information, including a detailed explanation of the SIP macros discussed below, see the TPF Database Reference.

The SIP requirements for capture/restore include these SIP macros:

  1. The DDCCAP macro is used to establish the disk device control table for capture/restore. Parameters may be submitted for up to four device types. If coded, parameters for at least one device must be entered.
  2. The LOGCAP macro is used to specify information relating to logging/exception recording (LOG/XCP) processing. Values are entered to specify the online module ranges to be assigned to each of the LOG/XCP exception recording tapes.
  3. The RESCAP macro is used to specify error counts, channel utilization percents, and other variable data pertaining to capture/restore. It is also used to input the channel, control unit, and relative speed of available tape units.

    All these macros are required by SIP if the capture/restore facility is desired.