Software Installation for MS-DOS Users   SYTOS         Faxback Doc. # 5000

NOTE: If you install this device in a computer that boots from a non-SCSI
hard drive, during startup you will see:

  SCSI TARGET 0 NOT FOUND

  Strike the F1 key to continue

Press F1 to boot from the hard drive.

Before using the SYTOS software, you must create a directory on your hard
drive for the SYTOS files. Then, install the SYTOS files from the supplied
diskette to your hard drive.

To create a new directory on your hard drive, be sure you are in the root
directory, then type:

    md SYTOS  ENTER

To copy the SYTOS files to your hard drive, insert the SYTOS diskette in
your computer's A drive and type:

    a:  ENTER

    stinstal  ENTER

The SYTOS software automatically copies the files to your hard disk.

Next, you must install a device driver called scsitape.sys in your
CONFIG.SYS file. If you are not sure whether you have a CONFIG.SYS file
on your system, use the DOS command DIR to display the files in your root
directory.

If you don't have a CONFIG.SYS file on your system, create a new CONFIG.SYS
file using the DOS text editor EDLIN, or any word processor that can create
an ASCII file.

Add the following line to your CONFIG.SYS file:

    buffers=20
    files=20
    device=[path]scsitape.sys

    [path] is the directory that contains the SCSI device driver, such as
    C:\sy-tos\.

    If necessary, modify the buffers and files lines so that the values are
    at least 20.

    Save the CONFIG.SYS file and reboot your computer to load the new
    configuration information.

NOTES:

* Remember to save CONFIG.SYS as an ASCII file if you are using a word
  processor to edit the file. See your word processor's user's guide for
  more information on saving text as an ASCII file.

* The actual contents of your CONFIG.SYS file will vary.

SOFTWARE INSTALLATION--FOR XENIX USERS

1. Type    mkdev tape ENTER

If you have Xenix version 2.3.2 or later, the following menu display
appears:

    Xenix System V Tape Driver Installation

    1. Install a Tape Driver
    2. Remove a Tape Driver

    Select an option or enter q to quit:

Enter 1 to install a tape driver.

If you have a version of Xenix prior to 2.3.3, or after you enter 1, the 
system displays the following menu:

    1. Install Cartridge Tape Driver
    2. Install Mini-Cartridge Tape Driver
    3. Install Qic-40 Tape Driver
    4. Install SCSI Tape Driver

    Select an option or enter q to quit:

Select 4 to install a SCSI tape drive.

2. The system asks you for the tape drive ID. Enter the tape drive's ID
   number. The tape drive is set to 2 at the factory: enter 2 if you have
   not changed the jumpers.

3. The system asks you which host adapter the tape driver is on. Enter 1
   for the first adapter or 2 for the second adapter.

4. The system tells you that the SCSI tape device files have been created.

Your new SCSI tape drive is now ready for use.

SAMPLE USAGE FOR SCSI TAPE DRIVE

Using a tape drive is like using a disk drive. You use tar, dumpdir, dd,
cpio, backup, dump, and restore. In addition, tape sends commands to and
receives status from the tape system.

You can use backup, dump, dumpdir, and restore to backup or restore all or
part of a file system.

To backup more than 160 MB of data with the tar command, you need more than
one tape. Use the tar k option to specify a volume size of 160K for the
archive.

The tape command has the following options:

amount        Reports the amount of data in current or last transfer.

erase         Erases and retention the tape.

reset         Resets the tape controller and drive. Clears error conditions.

reten         Retention the tape cartridge.

rewind        Rewinds to beginning of tape.

rfm           Winds tape forward to next file mark.

status        Returns the tape status.

wfm           Write a file mark at the current tape position.

Examples:

  tar -cvbkf 20 160000k /dev/rct0/usr

  find /usr -print | cpio -oBcv > /dev/rct0

  tape reten

NOTE: Refer to the Xenix User's Reference for complete instructions for all
commands.

(dkh-08/03/93)