1.$ SET RMS_DEFAULT/BLOCK_COUNT=24
      $ SHOW RMS_DEFAULT

              MULTI- |              MULTIBUFFER COUNTS            | NETWORK
              BLOCK  | Indexed Relative         Sequential        |  BLOCK
              COUNT  |                  Disk Magtape  Unit Record |  COUNT
      Process  24    |    0        0      0     0          0      |    0
      System   16    |    0        0      0     0          0      |    8

               Prolog    Extend Quantity     QUERY_LOCK
      Process    0              0            System
      System     0              0            Enabled

               CONTENTION_POLICY
      Process      System
      System       Never

      The SET RMS_DEFAULT command in this example sets the multiblock
      count for disk file I/O at 24 for user programs that do not set
      the multiblock count explicitly. The command applies only to
      the current process.

    2.$ SET RMS_DEFAULT/BUFFER_COUNT=8/MAGTAPE
      $ SHOW RMS_DEFAULT

              MULTI- |              MULTIBUFFER COUNTS            | NETWORK
              BLOCK  | Indexed Relative         Sequential        |  BLOCK
              COUNT  |                  Disk Magtape  Unit Record |  COUNT
      Process   0    |    0         0     0     8          0      |    0
      System   16    |    0         0     0     0          0      |    8

               Prolog    Extend Quantity     QUERY_LOCK
      Process    0              0            System
      System     0              0            Enabled

               CONTENTION_POLICY
      Process      System
      System       Never

      The SET RMS_DEFAULT command in this example defines the default
      multibuffer count for I/O magnetic tape operations at 8.

    3.$ SET RMS_DEFAULT/BUFFER_COUNT=7/NETWORK_BLOCK_COUNT=16/SYSTEM
      $ SHOW RMS_DEFAULT

              MULTI- |              MULTIBUFFER COUNTS            | NETWORK
              BLOCK  | Indexed Relative         Sequential        |  BLOCK
              COUNT  |                  Disk Magtape  Unit Record |  COUNT
      Process   0    |    0        0      0     0          0      |    0
      System   16    |    0        0      7     7          0      |   16

               Prolog    Extend Quantity     QUERY_LOCK
      Process    0              0            System
      System     0              0            Enabled

               CONTENTION_POLICY
      Process      System
      System       Never

      The SET RMS_DEFAULT command in this example defines the
      systemwide default multibuffer count at 7 for all sequential
      file operations on disk, magnetic tape, and unit record
      devices. The command also sets the network block count at 16.

    4.$ SET RMS_DEFAULT/EXTEND=50/INDEXED/BUFFER_COUNT=5
      $ SHOW RMS_DEFAULT

              MULTI- |              MULTIBUFFER COUNTS            | NETWORK
              BLOCK  | Indexed Relative         Sequential        |  BLOCK
              COUNT  |                  Disk Magtape  Unit Record |  COUNT
      Process   0    |    5         0     0     0          0      |    0
      System   16    |    0         0     0     0          0      |    8

               Prolog    Extend Quantity     QUERY_LOCK
      Process    0             50            System
      System     0              0            Enabled

               CONTENTION_POLICY
      Process      System
      System       Never

      The SET RMS_DEFAULT command in this example sets the default
      multibuffer count for I/O operations on indexed files at 5.
      It also defines the default extend quantity for sequential
      I/O operations at 50 blocks. These defaults apply only to disk
      operations for user programs that do not set the multiblock
      count explicitly. These defaults are limited to the current
      process.

    5.$ SET RMS_DEFAULT/QUERY_LOCK=DISABLE
      $ SHOW RMS_DEFAULT

              MULTI- |              MULTIBUFFER COUNTS            | NETWORK
              BLOCK  | Indexed Relative         Sequential        |  BLOCK
              COUNT  |                  Disk Magtape  Unit Record |  COUNT
      Process   0    |    0        0      0     0          0      |    0
      System   16    |    0        0      0     0          0      |    8

               Prolog    Extend Quantity     QUERY_LOCK
      Process    0              0            Disabled
      System     0              0            Enabled

               CONTENTION_POLICY
      Process      System
      System       Never

      The SET RMS_DEFAULT command in this example requests that query
      locking be disabled for the duration of any file opens done by
      images within this process for any read ($GET or $FIND) record
      operations that have both RAB$V_NLK (no lock) and RAB$V_RRL
      (read-regardless) set in the RAB$L_ROP field of the RAB (Record
      Access Block).