Ref: 99980156
Title: Customer Care Bulletin, Feburary 1985
Date: 2/1/85

Copyright 3Com Corporation, 1991.  All rights reserved.

.h1;PINOUTS FOR THE DIX LOOPBACK PLUG

If you want to make a loopback plug to test the DIX connector
(used for external transceiver and thick Ethernet cable
configuration) on the EtherLink card, use a 15 - pin D - shell DB
1 5P connector in the following configuration:

    Pin 3 loops to Pin 5
    Pin 10 loops to Pin 12


.h1;SETTING PRINTERS ON THE AP SERVER FOR 7 OR 8 BIT MODE

The following information will allow you to set one printer to 7 - bit
mode, and the other to 8 - bit mode.

On an AP server, to set printer # 1 to 7 bit mode, type in lower - case ]
letters, case - dependent:

   (1) Login as "uadmin"
   (2) Type "cd /usr/lib"
   (3) Type "cp lpd7 lpd"
   (4) Logout (type CONTROL D)

On an AP server, to set printer # 1 to 8 bit mode:

   (1) Login as "uadmin"
   (2) Type "cd /usr/lib"
   (3) Type "cp lpd8 lpd"
   (4) Logout (type CONTROL D)

On an AP server, to set printer #2 to 7 bit mode:

   (1) Login as "uadmin"
   (2) Type "cd /usr/lib"
   (3) Type "cp lpd27 lpd2"
   (4) Logout (type CONTROL D)

On an AP server, to set printer #2 to 8 bit mode:

   (1) Loqin as "uadmin"
   (2) Type "cd /usr/lib"
   (3) Type "cp lpd28 lpd2"
   (4) Logout (type CONTROL D)


.h1;SERVER PARAMETERS

The following information on server configuration parameters
applies both to EtherSeries 2.2 and 2.4 for a PC Server, 3Server
and AP Server.

                                 PC SERVER        3Server      AP
                  EtherSeries          2.2   2.4

 Maximum expansion drives                *     *      6          1
 Maximim servers on network             20    40     40         20
 Maximum users created per server       50    50    100        100
 Maximum volumes per server            100   100    200        100
 Maximum simultaneous logins            20    20     50         40
  (crosslinks count as loging)
 Maximum sempahores per server         150   150    150         50
 Number of users recommended for
   best performance                    2-8   3-12   5-20       8-20

       * Dependent on PC manufacturer's limitation.


.h1;WHEN A PHYSICAL DRIVE GETS FULL

If drive X: (drive X is where Etherseries program live - usually
drive c:) becomes full, EtherPrint and EtherMail will not have
enough room to buffer messages/print jobs. The resulting messages
include:

   "Server busy" every time you try to send a mail message.
   "Device error writing to PRN: " when trying to send something
    to the printer.

Differing error messages may occur depending on the type of
applications package you are using when the buffer space is
exhausted, and you may have print jobs that do not print
completely.

EtherPrint and EtherMail set aside approximately 500K of
buffering space on drive X: for buffering of print jobs and mail
messages. (500K is the maximum set aside and is used by BOTH
EtherMail and.EtherPrint.). This space will not be allocated for
any other purpose.

If a print job(s) and/or mail messages exceed the 500K space
allocation, the software will draw from available space on drive
X: for temporary buffering space. If drive X: has no available
free space, the error messages shown above will appear.

To remedy the situation, you must do one of the following to free
up space on drive X:

1.  Delete some information from X: to free up some space.

2.  Add an expansion hard disk and install it via the
EtherShare Administration menus as an expansion peripheral.
Bring up the network and create some new volumes. Link an
old volume on one drive specifier and one of the new
volumes to another. Copy everything from the old volume
into the new volume. Delete the old volume.

On some third - party hard disks, old EtherPrint spooled.jobs do
not get deleted.  If this occurs, the files must be manually
deleted from the system to free up space. To check for this
situation, boot the server and exit to DOS. Do a DIR
of the \ETHERSHR directory on drive X:.  Look for any files which
have an extension similar to .AO1 (e.g., USERNAME.AO1). These
files will be listed as having 0 bytes, but they do
take up disk space. Use the DOS DELETE command to delete these
files.  From time to time you should check drive X: for these
files and delete them.  It is not known at this time why these
"phantom" print jobs are remaining on the hard disk.


.h2;ARCHIVING ETHERMAIL MESSAGES

As your mail inbox fills up, you will probably want to file
messages for future reference.  With EtherSeries you can store
messages in two ways:

  On floppy diskette
  In an EtherShare volume on the server. (A volume is a section
  of space on the server equal to a diskette.)  This volume will
  reside on a virtual drive, as opposed to a physical drive.

1.  To store EtherMail messages on a floppy diskette:

(a) Obtain a diskette; label it "mailarchive" or "oldmailmsg"
as you wish.

(b) Insert the floppy in drive B: of a 2 - drive system.

(c) Log in to EtherShare via the Login batch file.

(d) At the D > prompt, type " FORMAT B: ".

(e) After the diskette is formatted, enter Mail via the
Runmail batch file (since you are already logged into the
share)

(f) In Mail, use the File function [F5] to file each message
you want to save. When prompted for the filename,
supply "B:".

(g) All filed messages will be stored on the diskette in
drive B:.

(h) Exit from the EtherMail program.

(i) At the D > prompt, type "MAIL B:" so Mail will use your
new inbox on B:. You will be prompted to create a new
directory.  Respond with  "YES".

You format a diskette only once, when it is new. Now that you
have formatted your diskette and set up the mail directory on it,
you just use Mail in the usual way.

By archiving your messages you free up valuable space on the
server, and these messages are in a safe accessible place.

2.  To store messages in an EtherShare volume:

(a) Login to EtherShare using the Login batch file.

(b) At the D> prompt, run the Create batch file. Supply a name
for your volume, something meaningful like "archive" or "old".

(c) At the D> prompt, type "ESLINK C: ARCHIVE", or in place of
"ARCHIVE" use your volume name.

(d) Run the Runmail batch file (since you are already logged
in).

(e) File messages you want to save with the File function
[F5]. Use C: at the file name.

(f) Exit from the EtherMail program.

(g) At the D> prompt, type "MAIL C:".  You will be prompted to
create a new mail directory on this virtual drive C:.

