If the IDIRSTRUCT file is deleted or modified, data loss condition may occur, active tapes may be de-assigned.
| Article:TECH57024 | | | Created: 2008-01-24 | | | Updated: 2009-01-19 | | | Article URL http://www.symantec.com/docs/TECH57024 |
Problem
If the IDIRSTRUCT file is deleted or modified, data loss condition may occur, active tapes may be de-assigned.
Solution
When NetBackup is installed, it creates a file called
IDIRSTRUCT in the following
paths:
On Windows:
On Windows:
<install_path>\VERITAS\NetBackup\db\
On Unix:
<install_path>/openv/netbackup/db/
The default value of the file is 2. With this value in place, all Netbackup image information (header files, data files etc) will be written to the following paths:
On Windows:
<install_path>\VERITAS\NetBackup\db\images\<client_name>\<ctime>
On Unix:
<install_path>/openv/netbackup/db/image/<client_name>\<ctime>
If the
/usr/openv/netbackup/db/IDIRSTRUCT file
is deleted, NetBackup will recreate this file with a value of 1; which is a
change from the default value of 2. This will result in the following
behavior:
1. All
new NetBackup image information (header files, data files etc) will be written
directly under the the following paths:
On Windows:
<install_path>\VERITAS\NetBackup\db\images\<client_name>\
On Unix:
<install_path>/openv/netbackup/db/image/<client_name>\
2. From
this point NetBackup Administrators will not be able to view any backup images
for restore that were written prior to the time when the
IDIRSTRUCT file was modified. See
the related document for details.
3. The
NetBackup EMM Database will check whether the backup images written to any
assigned tapes exist in the image database under the
<install_path>/db/images/<client_name> (UNIX) or
<install_path>\db\images\<client_name>
(Windows) directory; it will NOT not check any images under the
<install_path>/db/images/<client_name>\<ctime>
(UNIX) or
<install_path>\db\images\<client_name>\<ctime>
(Windows)
directories. As a result, of not finding older image
information, the EMM database will de-assign the tapes for which it does not
find any corresponding images.
4. If the
tapes are in the library, or if the tapes will be brought back into the library
from off-site location, tapes may be even overwritten.
This behavior
will also apply if the value of the
IDIRSTRUCT file is manually
modified.
Recommendation:
Never delete or modify the IDIRSTRUCT
file.
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Related Articles
Legacy ID
296774
Article URL http://www.symantec.com/docs/TECH57024
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