Detailed information for the notes.ini Keyword: 

Enable_LZ1_Encrypted_Notes


Short Description: t it to 1 to enable LZ1 compression of encrypted documents in the Mail journal database.

Description:
When mail journaling, compression and encryption are in use, there are cases for which Domino performs unnecessary conversions between LZ1 and Huffman encoding. The ENABLE_LZ1_ENCRYPTED_NOTES option was introduced as an experiment. The intention was to avoid unnecessary I/O caused by the conversions by setting ENABLE_LZ1_ENCRYPTED_NOTES=1. This configuration has not been adequately tested.

Recommendation:
ENABLE_LZ1_ENCRYPTED_NOTES should always be disabled. This configuration has not been thoroughly tested with down level servers and clients.

Caveat: If 1) the entire domain (server and clients) are using 8.5 or higher, 2) journaling is enabled, and 3) LZ1 compression is in use, then ENABLE_LZ1_ENCRYPTED_NOTES=1 on the server side would improve server I/O performance.

Restrictions:
The notes.ini option ENABLE_LZ1_ENCRYPTED_NOTES was introduced in 8.0.1. Its behavior was modified in 8.0.2 for cases involving sealed notes. As of 8.0.3 and 8.5.1 that behavior stands unchanged until further notice.





Default value:
When ENABLE_LZ1_ENCRYPTED_NOTES is absent from notes.ini or set to 0, additional, unnecessary conversions can sometimes be performed.

Syntax:
Enable_LZ1_Encrypted_Notes=0 / 1

Example:
Enable_LZ1_Encrypted_Notes=1

UI equivalent:
There is no kown UI setting for this notes.ini variable. But you can specify this setting in the notes.ini settings tab of the configuration settings document.


Applies to:
Server and Workstation


Valid for version:
8.0.0

Documented in:
IBM Website

Related website:
IBM Lotus Domino Wiki

Entry created by:
Bastian W.