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Performing an Incremental Backup using ntbackup in NT 4.0

Posted on 2004-10-28
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Hello.  I just created a full backup of my server and performed a restore to its new drive location on our SAN.  I would now like to perform an incremental backup from the original location, then perform a restore over the new location on our SAN.  What is the command for performing an incremental backup.  Also, is there a command for performing an incremental restore at the new data location?  I do not see anything at the GUI.

I'm backing up on an externally connected DLT drive, from NT4 Server.

I'm restoring on a 2000 Server.

Thanks.
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Question by:thumper666
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by:leeohalloran
ID: 12458597
Hi There

You dont say which service pack is installed on the NT4 Server, there were several versions of NTBackup.exe delivered via the Service packs, but the following syntax is used with the NTBackup.exe command

ntbackup operation path [/a] [/v] [/r] [/d "text"] [/b] [/hc:{on|off}]
[/t {option}] [/l "filename"] [/e] [/tape:{n}]

The switch you are mostly interested in is the /t switch

if you ensure that your cmd is appended with

/t incremental

 then that will give you a backup of only the data files that have chnaged since the last fulll backup



********As I do not know how confident you are with command line I have listed the full switch options below*********

ntbackup operation path [/a] [/v] [/r] [/d "text"] [/b] [/hc:{on|off}]
[/t {option}] [/l "filename"] [/e] [/tape:{n}]

/a

This parameter appends the specified data to the end of the last backup set on the tape. If this parameter is not used, the backup will overwrite the previous data on the tape. If more than one directory or drive is specified on the command line, the first one overwrites the data on the tape, and subsequent ones are appended.

/v

This stands for verify. This parameter confirms that the backup data set was in fact placed on the tape.

/r

This stands for restrict. This parameter limits access to the backup data set that is being written to tape.

/d "text"

This stands for description. This parameter provides a very brief explanation of the backup data set being written to tape.

/b

This stands for backing up local Registry. If this parameter is used, the local Registry will be backed up in addition to the backup data set specified.

/hc:{on|off }

This stands for hardware compression. Depending on whether you indicate on or off, this parameter will utilize hardware compression or not.

/t {option}

This stands for type of backup to be performed; the different types of backups are the same types described in the section "Backups." The keywords used for option are the following:

normal
copy
differential
incremental
daily
/l " filename"

This parameter indicates that you want logging turned on with the name of the log file that should be kept on the backup. This logs full details, which include all operations information, including the names of all the files and directories backed up.

/e

This parameter is used in conjunction with the /l parameter, but indicates that the logs should only be the summary information, not the full details. This logging includes only the major operations and failed backups.

/tape:{n}

If you have multiple drives attached to your system, use this parameter to specify the tape drive to back up to. The variable n is the tape drive number and can be a value between 0 and 9.


Hope this helps if you need anyhelp actually building the command then let me know


Lee

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