fad1b0f6_e_Manual__Release_4_0__Windows__Function
[Type Manager] z_whole_copy [Function] 
Stores any data. Stores each version in a separate, compressed data container file using the gzip compression program. Note that compressed files generally take more time to check in (because they must be compressed), and reconstruct when first accessed (first cleartext fetch).
ClearCase Reference Manual, Release 4.0, Windows
Function