Ref: 17310005
Title: Configuring a 3S/401 for 320 and 630 MB Drives
date: 1/3/90

Copyright 3Com Corporation, 1991.  All rights reserved.

In a 3S/401, the primary 150 MB disk drive can be replaced by a 320
MB or 630 MB drive.  Following are the steps required to successfully
configure the 3S/401 and format the disk drive.

1.  Make sure you have the correct version of the System Software
#1 diskette (P/N 3382).

For a 320 MB drive, use rev 07 (P/N 3382-07) or higher.  For a
630 MB drive, use rev 08 or 09.  Earlier versions of the software will
not have the 320 MB or 630 MB drives available as predefined drive
types.  If you do not have a system software diskette that is the correct
revision, download a copy of the latest version of 3DISK386.EXE from the
Ask3Com Forum (Patches and Fixes library).

2.  Run the 3DISK386 program.

3.  From the main menu, choose option 1 for the Disk menu.  Select
the correct controller type for the drive that is being configured.
For the base drive select SCSI ID 2 and LUN 0.  Specify that this will
be a boot device and choose the correct drive type.

4.  From the main menu, choose option 2 for the Drive Configuration
menu.  Remove the currently configured primary boot drive, SCSI ID 2
and LUN 0, from the server configuration.  Choose option F to remove
all drives from configuration.

5.  From the Configuration menu, choose option B to add the new base
drive as the primary boot drive, SCSI 2 and LUN 0.  Choose the correct
controller type.  Also, add all expansion drives.  For example, a
secondary drive may be configured as SCSI ID 3 and LUN 0.

6.  From the Configuration menu, choose option D to specify the base
drive as the boot drive.  Check the listed parameters for predefined
disk drives.

The parameters for a 320 MB drive listed in the table below the *****
are displayed by 3DISK386.  (Parameters for a 630 MB drive will be
included in this list when 3DISK386 is executed from a System Software
#1 diskette, P/N 3382-08 or 3382-09.)

7.  Configure the drive using the correct parameters.

     Controller & Drive      Cylinders   Heads   Sectors/Track
     ---------------------   ---------   -----   -------------
     Adaptec 4000 w/70  MB   1166        7       17
     Adaptec 4070 w/103 MB   1166        7       26
     Adaptec 4525 w/150 MB   969         9       36
     CDC embedded w/150 MB   969         9       35
                    *********************
     Adaptec 4525 w/320 MB   1224        15      36
     Adaptec 4525 w/630 MB   1632        15      53

8.  Format the drive using 3DISK386, to prepare the drive for server
software installation.

