Novell EDIRECTORY 8.8 - GUIDE, Manual

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Backing Up and Restoring Novell eDirectory 417
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-s file_size (Optional) Backup file size limit (bytes)
Specifies the maximum size (in bytes) of the backup file. You might want to
use this option if you are concerned about file size because of the media you
are using to store the backup files after they are created.
If the maximum size is reached, a new backup file is created with the same
name as the first with a five-digit hex extension added to denote what file it is.
This extension increments with each new file.
For example, you could set the maximum size of the backup files to 1 MB
using the following switches as part of your command: backup -f
vol1:/
backup/mydib.bak
-s 1000000. If the database is 3.5 MB, this is the
resulting set of backup files:
vol1:/backup/mydib.bak
, size is 1 MB
vol1:/backup/mydib.bak.00001
, size is 1 MB
vol1:/backup/mydib.bak.00002
, size is 1 MB
vol1:/backup/mydib.bak.00003
, size is .5 MB
The smallest possible size is about 500 KB. The first file could be larger,
depending on how many files are being included with the backup.
The first file contains an attribute under the backup tag called
number_of_files. This is the total number of files in the backup set. For the
above example, this number would be 4. Also, the header of each backup file
contains an attribute called backup_file. This is the original name of the file.
(For more information, see
“Format of the Backup File Header” on page 381 .)
When restoring a set of backup files like the set in the example above, the
command would be
restore -f
vol1:/backup/mydib.bak
-l log_file_path_and_filename
The Backup eMTool identifies that there are multiple files and looks for them
in the same directory as the first, but with the above name mutations.
TIP: The backup files can also be made much smaller using a third-party file
compression tool. They compress approximately 80%.
Option and Switches Description