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NT Backup Objectives
*****************
* Installing the Tape Device
** Limitations
*** Permissions for Tape Backup
**** Types of Backups
***** Tape Lingo
****** Configuring Tape Backup & Restoration (using tape backup)
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Installing a Tape Device
Start > Settings >
Control Panel >�
Devices Tab >
Detect. If your device is not detected, it can be manually installed on the
Drivers tab.
� Windows NT Tape Backup Limitations
- Windows NT only supports
backing up to tape. To backup to floppy or other media, you must use
"backup" and "xcopy" commands
- If you want to backup the
Directory Database for domain: tape drive must be located on a domain
controller
-
You cannot backup or
restore registry or event log on remote computers. NT can only backup and
restore the registry or event logs on the computer where the tape drive is
installed.
- If files are in use, NT backs up
only the last saved version. NT OS files is exception, they can be backed up
while in use.
-
Backup
is not intended for volume recovery� - it cannot restore the boot
partition
-
Does NOT have native scheduling built in. You must use WIN
AT, Command Scheduler (NT RK) or Task Scheduler (new task scheduler
downloadable with IE 4.x and included in Windows 98 - will be in NT 5) FYI:
so far I have found that Task Scheduler (downloadable with IE 4 is totally
unreliable and fails everytime SP3 is reinstalled and/or a new program is
installed).
Backup Local
Registry? This option is available only if you have selected at least one
other file. You cannot back up ONLY the Registry
Have the backup files and
directories and the restore files and directories right by
default (overrides file and directory permissions)
-
Administrators
-
Server
Operators
-
Backup Operators (they can't manage server's remotely.
Understand the implications of this)
-
*All users can
backup and restore files with Read permission (this does not mean tape
backup)
�
For security: do not have the same people backing
up and restoring. Divide the responsibility. Prevents User from restoring NTFS
to a FAT partition and effectively removing security.
If you restore files to
a computer that does not have the same user and group accounts as the computer
where the files originated, do not restore the permissions. The files will
inherit the permissions of the folder to which they are restored." Same as
moving NTFS permissions, compressed files to a directory on a different
partition
� Types
- Normal / Full (selects
and marks files as being backed up)
- Incremental (marks only
files changed since last Full or incremental back).
- Full / Incremental Combination -
restoration means restoring the Normal and then each incremental to the
present date
- Differential (does not
mark files as being backed up) - gets files changed since last normal or
incremental
- Full / Differential
Combination - restoration means only the last Full and the last
differential. Best way to go as only two tapes will be required for any
restore.
- Copy (does not mark)
-
- Daily Copy - (does not
mark) - err ... "good to take work home" ... uh .. yea
If last tape in family
set is missing or damaged, you can force NT to treat data on each remaining tape
as a single unit, by starting NT backup at command prompt with
"/missingtape" switch.
� Learning the Lingo
- backup set: group of files or
folders on a single volume from single backup operation
- family set: if single backup
operation requires multiple tapes. It is the group of tapes
- catalog: graphical
representation of backup
- tape: all back up sets on
tape
- Backup log: BACKUP.LOG in the
\systemroot folder.
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