This command is a nonprinting directive.  The following
    types of SET commands are available:

        SET CPU
        SET LOG
        SET NOLOG
        SET OUTPUT
        SET PROCESS
        SET RMS

Additional information available:

CPULOGNOLOGOUTPUTPROCESSRMS

        SET CPU cpu_id

    Selects a CPU to become the new "SDA current CPU".  The CPU is
    specified by its hexadecimal CPU ID, a value between 00 and 1F.
    SET CPU also changes SDA process context.  The new "SDA current
    process" is the current process on the specified CPU.  If there
    is no current process on the new "SDA current CPU", then the
    "SDA current process" is undefined, and no process context
    information will be available until SDA process context is set
    to a specific process.

    Subsequent SDA commands display information based on both the new
    "SDA current process" and new "SDA current CPU".

    Type HELP PROCESS_CONTEXT for specific information about the
    "SDA current process".  Type HELP CPU_CONTEXT for specific
    information about the "SDA current CPU".

    Note:   SET CPU is only valid when analyzing a crash dump.  It is not
            a valid command when analyzing the running system, because
            all the CPU-specific information may not be available.

        SET LOG [file-spec]

    Sends a copy of all subsequent output to the file specified.
    In addition, all subsequent output continues to be sent to SYS$OUTPUT.
    If no file is specified, the default file is SYS$OUTPUT.
    This remains in effect until you issue a SET NOLOG command.

        SET NOLOG

    Stops SDA from sending a copy of subsequent commands and output
    to the file specified by the previous SET LOG command.  All
    subsequent commands and output will only be sent to SYS$OUTPUT.

        SET OUTPUT [file-spec]

    Sends all subsequent output to the specified file.  None of the
    subsequent output is sent to SYS$OUTPUT.  This remains in effect
    until you issue another SET OUTPUT command.

    The default file specification is SYS$DISK:[default-dir]SYSDUMP.LIS

        SET PROCESS  name
                    /qualifier

    Selects a process to be used as the new "SDA current process".
    If the specified process is the current process on some CPU, SDA
    also performs an implicit SET CPU command.

    Subsequent SDA commands display information based on both the new
    "SDA current process" and new "SDA current CPU".  Type HELP
    PROCESS_CONTEXT for specific information about the "SDA current
    process".  Type HELP CPU_CONTEXT for specific information about the
    "SDA current CPU".

    The process name must be a quoted string if it contains characters other
    than capital letters, numbers, dollar signs ($), or underscores (_).
    The maximum size of the process name is 15 characters.

    For example:

        SET PROCESS OPCOM    ! Select process OPCOM as "SDA current process"
        SET PROCESS "Batman" ! Select process Batman as "SDA current process"

Additional information available:

/INDEX/SYSTEM

    Specifies the new current process by the index into the system's
    list of software process control blocks (PCB).  Alternatively, this
    argument can be the process identification (EPID or PID) longword,
    from which SDA extracts the correct index.

    Specifies the new current process by the system process control block.
    The system PCB and process header (PHD) are dummy structures that are
    located in system space and contain the system working set, global
    section table, global page table, and other system-wide data.

        SET RMS=option-spec

    Allows specification of control blocks to be displayed by the
    SHOW PROCESS/RMS command.  The option-spec has the form

        option    or     (option1,option2,....optionn)

    where option may be

                ALL [:ifi]      Display all control blocks (default)
                [NO] ASB        Asynchronous Save Block
                [NO] BDB        Buffer Descriptor Block
                [NO] BDBSUM     BDB Summary Page
                [NO] BLB        Buffer Lock Block
                [NO] BLBSUM     BLB Summary Page
                [NO] CCB        Channel Control Block
                [NO] DRC        Directory Cache
                [NO] FAB        User File Access Block
                [NO] FCB        File Control Block
                [NO] FWA        File Work Area
                [NO] GBD        Global Buffer Descriptor
                [NO] GBDSUM     GBD Summary Page
                [NO] GBH        Global Buffer Header
                [NO] GBSB       Global Buffer Synchronization Block
                [NO] IDX        Index Descriptor
                [NO] IFAB [:ifi] Internal Fab
                [NO] IFB [:ifi] Internal Fab
                [NO] IRAB       Internal Rab
                [NO] IRB        Internal Rab
                [NO] JFB        Journal File Block
                [NO] NAM        Name block
                [NO] NWA        Network Work Area
                [NO] RAB        User Rab
                [NO] RUB        Recovery Unit Block
                [NO] RUFB       Recovery Unit File Block
                [NO] RUSB       Recovery Unit Stream Block
                [NO] RLB        Record Lock Block
                [NO] SFSB       Shared File Synchronization Block
                [NO] WCB        Window Control Block
                [NO] XAB        User Extended Attributes Block
                [NO] *          Current (as opposed to "new") option
                                specification (includes ifi value)

         ifi => expression      IFI value (internal file identifier)

             All (default)      Use of this parameter restricts the
                                display to the selected control blocks
                                for only the file specified by the IFI
                                value.