Examining the Default Global Directory

The default Global Directory looks like this:

        *** TEMPLATES ***

            Def Rec Key Null
    Region  Coll Size Size Subs Journaling
    ------------------------------------------------------------------
    <default> 0 256 64 N N

    Segment Active Acc Typ Block Alloc Exten Options
    -------------------------------------------------------------------
    <default> * BG DYN 1024 100 100 GLOB =1024
    LOCK = 40
    <default> MM DYN 1024 100 100 DEFER
    LOCK = 40

        *** NAMES ***
    Global Region
    ---------------------------------------
    * $DEFAULT

            *** REGIONS ***

           Dynamic Def Rec Key Null
    Region Segment Coll Size Size Subs Journaling
    -------------------------------------------------------------------
    $DEFAULT $DEFAULT 0 256 64 N N

        *** SEGMENTS ***
    Segment File (def ext: .dat)Acc Typ Block Alloc Exten Options
    -------------------------------------------------------------------
    $DEFAULT MUMPS BG DYN 1024 100 100 GLOB=1024
    LOCK= 40
    RES = 0


        *** MAP ***
    - - Names - - File
    From Up to Region Segment (def ext: .dat)
    --------------------------------------------------------------------
    % ... $DEFAULT $DEFAULT MUMPS
    LOCAL LOCKS $DEFAULT $DEFAULT MUMPS


        *** TEMPLATES ***
           Def Rec Key Null
    Region Coll Size Size Subs Journaling
    --------------------------------------------------------------------
    <default> 0 256 64 N N

    Segment Active Acc Typ Block Alloc Exten Options
    --------------------------------------------------------------------
    <default> * BG DYN 1024 100 100 GLOB =1024
    LOCK = 40
    <default> MM DYN 1024 100 100 DEFER
    LOCK = 40

        *** NAMES ***
    Global Region
    ---------------------------------------
    * DEFAULT

        *** REGIONS ***
           Dynamic Def Rec Key Null
    Region Segment Coll Size Size Subs Journaling
    --------------------------------------------------------------------
    DEFAULT DEFAULT 0 256 64 N N

        *** SEGMENTS ***
    Segment File (def ext: .dat)Acc Typ Block Alloc Exten Options
    --------------------------------------------------------------------
    DEFAULT mumps.dat BG DYN 1024 100 100 GLOB=1024
    LOCK= 40
    RES = 0

        *** MAP ***
    - - Names - - File
    From Up to Region Segment (def ext: .dat)
    --------------------------------------------------------------------
    % ... DEFAULT DEFAULT mumps.dat
    LOCAL LOCKS DEFAULT DEFAULT mumps.dat
    

There are five primary sections in a Global Directory:

  • TEMPLATES

  • NAMES

  • REGIONS

  • SEGMENTS

  • MAP

The function of each section in the Global Directory is described below.