1  START
 

2  SERVER
   This command starts the LASTport/Disk server and sets various
   server and cache characteristics.

   Usually, this command is executed by SYS$STARTUP:ESS$LAD_
   STARTUP.COM using data from SYS$STARTUP:ESS$LAD_STARTUP.DAT.
   HP strongly recommends that you make all modifications in the
   SYS$STARTUP:ESS$LAD_STARTUP.DAT file.

   You can use the START SERVER command interactively to use its
   qualifiers to change server settings so long as no services are
   currently defined.

                                  NOTE

      If you enter the START SERVER command directly, you must
      specify all four qualifiers, or the system will revert to
      using default values.

   Format

     START SERVER
 

3  Qualifiers
 

/BUFFER_SIZE

      /BUFFER_SIZE=n

   The InfoServer block cache is structured as an array of fixed-
   size buffers (also called buckets.) The /BUFFER_SIZE qualifier
   determines the size of each bucket. (The /CACHE qualifer
   determines the number of buckets.)

   The numeric value of this parameter is an integer between 3 and
   8 inclusive, representing the bucket size in 512-byte blocks as
   follows:

      3 -   8 blocks (default)
      4 -  16 blocks
      5 -  32 blocks
      6 -  64 blocks
      7 - 128 blocks
      8 - 256 blocks

   The default value is 3.

   Bucket sizes that are larger than 32 blocks are not appropriate
   for most users. The OpenVMS client segments I/O requests that
   are larger than 31 blocks into 31-block chunks, and the default
   bucket readahead behavior might result in unnecessary I/O
   activity to the disk.
 

/CACHE

      /CACHE = number-of-buckets (default = 512)

   The InfoServer block cache is structured as an array of
   fixed-size buffers (also called buckets. The /CACHE qualifier
   determines the number of buckets in the cache. The /BUFFER_SIZE
   qualifier determines the size of each bucket.

   Numbers larger than 16384 can adversely affect performance.
   Consider increasing the /BUFFER_SIZE qualifier to reach the
   desired cache size.
 

/MAXIMUM_SERVICES

      /MAXIMUM_SERVICES = maxservice (default = 256)

   Sets the maximum service count for the server. This is the
   maximum number of services that can be defined at one time.
   Each service descriptor consumes non-paged pool; however, unused
   service slots consume only 4 bytes each.

   The maximum value is 1024.
 

/WRITE_QUOTA

      /WRITE_QUOTA = n (default = 0)

   Number of simultaneous synchronous writes permitted within the
   server. The default of zero means that all write operations are
   performed synchronously.
 

3  Example

 $ InfoServer SHOW SERVER


       Node BILBO [HP rx2600  (900MHz/1.5MB)] running OpenVMS XAR8-D2Y
       LASTport/Disk Server Version 1.2

       Max Services:        64        Write Quota:          0
       Cache Buckets:     2048        Cache Bucket Size:   32 blocks
       Cache Size:    33554432 bytes
       Hits:                 0        Hit Percentage:       0%
       Misses:               0

       Current Sessions:     0        Peak Sessions:        0

                          Read             Write
       Requests:             0                 0
       Blocks:               0                 0
       Errors:               0                 0
       Aborted:              0                 0
       Conflicts:            0                 0

 $ InfoServer START SERVER/MAXIMUM_SERVICES=128
 /CACHE=2048/BUFF=5/WRITE=0

       %INFOSRVR-I-STARTED, LASTport/Disk server started.

 $ InfoServer SHOW SERVER

       Node BILBO [HP rx2600  (900MHz/1.5MB)] running OpenVMS XAR8-D2Y
       LASTport/Disk Server Version 1.2

       Max Services:    128        Write Quota:          0
       Cache Buckets:  2048        Cache Bucket Size:   32 blocks
       Cache Size: 33554432 bytes
       Hits:              0        Hit Percentage:       0%
       Misses:            0

       Current Sessions:  0        Peak Sessions:        0

                       Read             Write
       Requests:          0                 0
       Blocks:            0                 0
       Errors:            0                 0
       Aborted:           0                 0
       Conflicts:         0                 0

     The first command in this example displays the current
     information about the server. The second command starts the
     server and increases the maximum number of services for the
     server. The third command displays the new information about
     the server, showing the increases maximum number of services.