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- VerBack Documentation Public Domain Version
-
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- Introduction
- ------------
-
- VerBack is a utility program which verifies that the DOS Backup command
- functions properly. It is known that the Backup command does not
- function properly in some DOS versions, and undetected I/O errors may
- occur when writting to floppy disks. For these reasons ALL backups
- should be verified to insure that no data is lost when the files are
- Restored.
-
- VerBack verifies that:
-
- o All hard disk files are backed up on the floppies
-
- o The data in all hard disk files is readable
-
- o The data in all backup files is readable
-
- o The data in the backup files exactly matches the data stored on
- the hard disk
-
- o All special files used by the Backup and Restore commands are
- present on the backup floppies
-
- Versions
- --------
-
- This is the Public Domain version of VerBack. It is available for
- personal, non-commercial use free of charge. An enhanced version of
- VerBack is also available under the ShareWare concept. The ShareWare
- version includes the following additional features:
-
- o Sophisticated screen display including windows and color
-
- o Program actions can be tailored using command line parameters
-
- o Ability to verify a single file, single directory,
- or selected directories
-
- o Program results may be reviewed on a file-by-file basis
-
- o Program results may be directed to a printer or disk file
-
- o An installation procedure which allows the program to be
- configured to your liking
-
- The enhanced version may be obtained by sending your name, address and a
- ShareWare contribution of twenty dollars to:
-
- TDS Software
- 49 Townsend Drive
- Florham Park, N.J. 07932
-
- You will receive a diskette containing the latest version of VerBack and
- a printed manual by return mail. You will also be insuring the continued
- support and improvement of this program.
-
-
- TDS Software December 22, 1986 Page 1
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- VerBack Documentation Public Domain Version
-
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- Running VerBack
- ---------------
-
- To run VerBack simply type VERBACK on the DOS command line. The program
- will sign on with the message
-
- VerBack V1.XPD- Verify DOS Backup
-
- You will then be asked to supply the drive letter for your hard disk and
- floppy disk. You will see these two questions:
-
- Drive for Hard Disk [C:]?
-
- Drive for Floppy Disk [A:]?
-
- In most computers the hard disk is drive C and the floppy is drive A.
- VerBack shows these values in brackets and you can just press RETURN if
- they are correct. If the drive letters are different on your computer
- enter the correct drive letter (VerBack will add the colon if you
- forget).
-
- You will then see the message
-
- Reading Hard Disk Directory...
-
- while VerBack makes a list of the names of all files on your hard disk.
- This list is used to determine if any file is missing from the backup.
- The actual verification process begins after the hard disk directory has
- read.
-
- You will be asked to place each backup disk in the diskette drive. When
- VerBack is ready to process the next backup disk the message
-
- Mount backup disk #NN in drive X:, Press RETURN when ready
-
- will appear on the screen. Place the the requested disk in the diskette
- drive and then press RETURN. VerBack will check to make sure that the
- proper disk is being used. If the disk is the wrong sequence number or
- is not a disk created by the Backup command you will see an explanatory
- message and will have an opportunity to mount the correct disk.
-
- The name of each file will be displayed as it is being processed. If
- VerBack detects any problems a message describing the problem will be
- shown. The message applies to the file on the line above. For example,
- the messages
-
- Verifying A:IBMBIO.COM and C:\IBMBIO.COM
- Verifying A:IBMDOS.COM and C:\IBMDOS.COM
- Verifying A:COMMAND.COM and C:\COMMAND.COM
- *** Data in files does not match ***
-
- show that the two files IBMBIO.COM and IBMDOS.COM have been verified
- (because no message follows them) and that a problem has been found with
- the COMMAND.COM file. The data in the file on the hard disk is different
- than the data in the backup file. This means that the backup set does
- not correspond to this hard disk or that an I/O error occured during the
-
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- TDS Software December 22, 1986 Page 2
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- VerBack Documentation Public Domain Version
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- Backup command. In either case the file would not be Restored properly
- and another Backup should be taken (and verfied).
-
- After all floppies have been processed VerBack will show any files on the
- hard disk which did not appear on the backup floppies. For example, the
- message
-
- Files omitted from backup:
-
- C:\LETTERS\SALES.MEM
-
- shows that the SALES.MEM file exists on the hard disk but not on the
- backup. This file would not be Restored and would be lost if the hard
- disk were erased or damaged.
-
- If there were any other problems the following additional messages will
- be shown:
-
- There were NNN files on floppy disk missing from hard disk.
-
- There were NNN files on floppy disk which could not be processed.
-
- Files with data mismatch: NNN
- Files with I/O errors: NNN
-
- If any of the above messages appear then the backup is not accurate. You
- will see the message
-
- *** Backup Contains Errors ***
-
- which indicates that the backup is not valid and should be repeated.
-
- Finally, a summary of the program activity will be shown. If all has
- gone well the following information will be shown:
-
- Files on hard disk: 824
- Files successfully backed up: 824
-
- --- Backup Verified ---
-
- This indicates that all files on the hard disk have been backed up and
- the floppies contain an exact duplicate of the hard disk. You can be
- sure that your hard disk will be completely recreated if you need to
- Restore using these floppies.
-
- Closing
- -------
- We hope that this program gives you peace of mind knowing that your data
- is safely backed up.
-
- Please let us know if you have any comments or suggestions about how
- VerBack can be improved.
-
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- TDS Software December 22, 1986 Page 3
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