When saving elements within Endevor what is the compression that is being used? Is it using industry standards or is it proprietary?
The compression algorithm used by Endevor is based on Lempel-Ziv-Welch (LZW) and will work with Endevor Base / Delta / Listing Libraries.
To determine if compression will be used the Base members, we look at the type definition for:
DELTA FORMAT (F/R/I/L)
Specifies delta storage format for elements of this Type. Valid values:
We will then check for:
COMPRESS/ENCRYPT(Y/N) ===> Y
if the compress/encrypt is set to Y and the base/delta files are defined as RECFM=VB or VBA then we will invoke the compression routine for forward delta and log delta format.
For Listing libraries, if they are defined as RECFM=VB or VBA then we will invoke the compression routine.
All Delta libraries are encrypted and compressed.