1. EZTOOLS.zip Driver
2. DLGCHK.TXT File Contents

DLGCHK.TXT Driver File Contents (EZTOOLS.zip)

This file contains information about the
Data Lifeguard BIOS Check program.

This program shows data about your IDE Hard Disk Drives and
BIOS Configuration in three sections as follows:

1. BIOS Test Results

2. Drive Data

   A. Drive and BIOS Capacity Data

   B. Partition Data

4. Int 13h Data

By selecting the appropriate menu option you may save a log file
containing all three sections.  The name of the log file will be
DISKDATA.LOG and it will be stored in the root directory of the
disk in the A: drive.

Following is a detailed description of the data in all three sections.

1. BIOS Test Results
 
   This section lists all of the IDE Hard Drives detected in the system
   and displays whether or not the system BIOS is properly controlling
   the drive.  If the BIOS is properly controlling the drive, the program
   will display what access mode is being used, LBA or CHS.  If your BIOS
   is not properly controlling your IDE Hard Drives, see the last section
   of this document concerning the EZ-BIOS disk handler.

   LBA stands for Logical Block Address(ing) and refers to a method of
   addressing hard drive sectors sequentially from 0 through n-1 where n
   is the total number of user addressable sectors on the drive.  All newer
   IDE drives and BIOSs can use this method of access, although with some
   BIOSs it depends on which type of BIOS function is called.

   CHS stands for Cylinder-Head-Sector and refers to a legacy method of
   addressing hard drive sectors by defining the logical Cylinder, Head
   and Sector number of the desired data.  This method depends on the
   current drive and BIOS "geometry" (head count and sectors per track)
   to correctly access a particular sector, causing some compatibility
   problems.  

2. Drive Data

   Each of the following two sections is displayed for each detected IDE
   Hard Drive.

   A. Drive and BIOS Capacity Data. 

   This sections displays data obtained directly from the IDE Hard Drive
   as well as the system BIOS.  Slight differences between the capacities
   listed are acceptable since the OS does not use every sector out to the
   end of the drive anyway.  Instead the partitions must end on a cylinder
   boundary, where a cylinder can be as much as 8 MB.

   B. Partition Data

   This sections displays information about all of the partitions found on 
   on the IDE Hard Drive.  If there are no partitions found on a drive, the
   table header will be shown but no entries will appear below it.

4. Int 13h Data

   Int 13h stands for "Interrupt 13h" which is a small program on the system 
   BIOS chip that controls the IDE hard drives while the system is booting
   and when running in DOS mode.  If you have SCSI Hard Drives or some
   other type of drive not detected in the previous sections, this section
   may display data about those drives, but only if the system BIOS or
   adapter card BIOS provides Int 13h functions for the drive.

   There are two main catagories of Int 13h functions, Regular and Extended.

   All BIOSs have the Regular functions available, which use CHS addressing
   (see CHS description above).  The maximum capacity hard drive that can be
   accessed using the Regular Int 13h functions is 8.4 GB.  Not all BIOSs
   actually support drives of that size however.

   To access drives over 8.4 GB in size the BIOS must support the Extended
   Int 13h functions.  These functions use LBA addressing (see LBA
   description above) and can theorectically access the maximum current IDE
   drive capacity of 137 GB, although not all BIOSs that support Extended
   Int 13h functions can actually handle a drive of that size.


If your BIOS is not properly handling your IDE Hard Drives, the EZ-BIOS
Disk Handler can overcome your BIOS limitaions.  This small program is
installed on the boot track of your drive and uses 5k of conventional
memory to provide the proper Int 13h functions to control your IDE Hard
Drives. By simply using the included Data Lifeguard EZ-Install program
to partition and format your new Western Digital Hard Drive, you can be
insured of the proper Int 13h support for your drive.  EZ-Install will
automatically check your system BIOS and, if needed, install the EZ-BIOS
Disk Handler.  If your system BIOS is properly controlling your IDE Hard
Drives, EZ-Install will not install EZ-BIOS, however EZ-Install is still
a useful program for quickly and easily partitioning and formatting your
new IDE Hard Drive and optionally copying the contents of any existing
IDE Hard Drives in your system.