Category Software Development
A nice writeup about the cache.dsk file...
From the KnowledgeBase...
What Is the Purpose of the Notes CACHE.DSK
What is the Notes CACHE.DSK file and what
does it do?
This special file contains design elements
(forms, subforms, and LotusScript libraries) of databases located on a
Notes server, in addition to cross-replica journaling information. Storing
these items in this file helps improve client performance when accessing
databases located on a Notes server and automates the process of read-mark
Important points about the CACHE.DSK file
include the following:
1. The CACHE.DSK is created automatically
whenever Notes starts, if the file does not already exist. Therefore,
if this file is deleted, it will be recreated the next time the Notes Client
2. The CACHE.DSK is actually a Notes
database with no built-in forms or views. Therefore, this file can
be compacted to recover unused space. The Compact option for the
CACHE.DSK is found on the Information tab of the Workspace Properties dialog
box (right-click any part of the Notes Workspace and select Workspace Properties
from the pop-up menu). Note that compacting the CACHE.DSK in this
manner also compacts the DESKTOP.DSK. Also, the value in the Size
field that appears on the Information tab reflects the combined size of
the CACHE.DSK and the DESKTOP.DSK.
3. The CACHE.DSK, by default, is
located in the Notes data directory. There are, however, two methods
for relocating the file: (1) the database redirection file and (2)
a NOTES.INI redirection parameter.
4. To achieve reasonable balance
between cache performance and disk-space consumption, the default maximum
size of the CACHE.DSK is set at 5MB. For additional information on
setting the CACHE.DSK size limit, refer to the document titled "Is
it Possible to Limit the Size of CACHE.DSK in Notes? (#1091866)".
5. Design elements (forms, subforms,
navigators, scripts, etc.) for a database are cached locally in the CACHE.DSK.
This speeds up access to commonly used design elements. When
a database is opened, it is determined whether the design elements need
to be re-cached from the database, based on an internal time stamp.
Notes 6.x Client:
In the Notes 6.x Client, the Cache file
has been renamed to CACHE.NDK.
Even though all information above applies
to the Cache.ndk file in Notes 6.x Client, please refer also to the following
document for specific changes regarding the data stored in each of the
Cache, Desktop, Bookmark, etc. files: "Cache.NDK, Desktop6.NDK
and Bookmark.nsf in ND 6" (#: 7002715)
How to Specify a Different Location
for the Cache File:
The CACHE.DSK / CACHE.NDK can be placed
in a directory other than the Data directory, if desired. You can
add the following line to the NOTES.INI file:
In Notes 5.x: CACHE=[drive]:\[directory]\CACHE.DSK
In Notes 6.x: CACHE=[drive]:\[directory]\CACHE.NDK
If the file does not already exist in the
newly specified directory, the file will be created. If there is
an existing CACHE.DSK / CACHE.NDK in the Data directory, the CACHE.DSK
/ CACHE.NDK will not be propagated. Note, however, that when you
enable the CACHE= parameter to redirect the Cache file to a directory other
than the Notes Data directory, a "File Does not Exist" error
can occur. Refer to the document titled "File Does not Exist'
Error After Using CACHE= to Redirect CACHE.DSK File" (#1090872) for
In releases prior to those cited above,
the CACHE.DSK file can reside only in the Notes data directory. The
data directory is identified in the NOTES.INI file with the following parameter:
where the path is the DOS path to the data