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      STACKER NOTE                                         STACKER NOTE
                          STACKER 4.0 AND NETWORKS
                          (Applies to Stacker 4.0)
      STAC FAX  4521 (06-24-1994)
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      BACKGROUND
      
      There are two major types of networks: DOS based peer-to-peer
      networks such as Lantastic, and networks that provide their own
      Network Operating System (NOS) such as Novell Netware. Stacker
      works well with all of these networks. This document provides
      general configuration and compatibility information.
      
      ISSUES
      
         - Compatibility
         - DOS-based networks
         - NOS networks
           
      Compatibility
      
      You may setup Stacker on the local hard disk of any workstation
      in either a DOS-based peer-to-peer or NOS network. You may not
      setup Stacker on the file server of a NOS network. Stacker works
      only in DOS or Windows.
      
      DOS-based networks
      
      Stacker works well on DOS based networks. However, the Stacker
      disk utilities such as CHECK, or the Optimizer SDEFRAG, will not
      work while you are logged on to a peer-to-peer network. Also, the
      Stacker Toolbox will not be available in Windows. You must log
      off of the network before running these programs. StacFax 4607
      addresses this issue.
      
      NOS networks
      
      When you install Stacker, DOS will assign a new drive letter for
      each drive you compress. This is similar to adding a hard drive
      to your system for each drive you compress. The additional drive
      letters may impact your current network drive mappings. There are
      certain things you may do:
      
         - Start assigning Stacker drive letters after the network
           drives.
         - Reduce the number of drive letters that Stacker uses by
           mounting drives "replaced".
         - Remap the network drive letters.
           
      Which technique or combination of techniques you use will depend
      upon your particular configuration. The following information
      will help you make your decision:
      
       1.  If you have only a few network drives you may have Stacker
           start assigning drive letters after your network drives.
           Note that this technique does not work on systems where
           network drives have been mapped with letters at the end of
           the alphabet. For example, if your configuration uses drive
           letters C through I, you may tell Stacker to start assigning
           drive letters starting with drive J. Note that this method
           only works if you are preloading your Stacker device driver.
           You must be running DOS 6 or higher to preload Stacker.
           a. From a DOS prompt type: ED /I <enter>. This will bring up
           your STACKER.INI file in an editor.
           b. Press <enter> to start a new line.
           c. Arrow up to the new line and type: /BD=drive
           where drive is the drive letter you wish Stacker to begin
           assigning. In this example you would type /BD=J.
           d. Press CTRL-Z to save the file, then restart your system
           for the changes to take effect.
           e. This technique may be used with Stacker 3.1 if it is
           preloading. Accessing the STACKER.INI file is slightly
           different.  Type STACKER <enter> to see which drive is
           swapping with drive C. Type: STACINI drive: <enter> where
           drive: is the drive that swaps with drive C. The STACKER.INI
           file will be brought up in an editor. Continue with the
           procedure starting with step b.
       2.  Reduce the number of drive letters that Stacker uses by
           mounting drives "replaced". When a drive is mounted
           replaced, the Stacker drive uses the drive letter of the
           physical host drive. However, the physical drive then
           becomes unavailable, and you may be unable to cache the
           drive. (See StacFax 4409 for information on caching a
           replaced drive.) This technique works with all drives except
           your boot drive.
           For example: if you have a C and D drive, and compress both,
           you may mount D replaced. Your C drive will swap with drive
           E. Drive D will be a compressed Stacker drive and you will
           not see a drive F. This reduces the number of drive letters
           that are assigned to Stacker drives, and may assist you in
           mapping your network drives. This method may be used in
           conjunction with step 3 below.
       3.  Remap the network drive letters using the network's MAP
           command or by modifying LOGIN scripts. Novell and other
           networks provide great flexibility in creating drive
           mappings that are appropriate for your system's
           configuration. Take into consideration the additional drive
           letters assigned to the Stacker drives when you remap the
           Network and Search drives. For details on remapping drive
           letters see your network documentation.
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      Copyright 1994 Stac Electronics
