References

• Schema: ZlibCompressionLevel
• Mapping:
  • zlib_compression_level

Notes

For SFTP file transfers the built-in compression feature of the transfer protocol can be specified to use a higher level of compression.

Compression levels are based on the following constants of the zlib library:

• #define Z_NO_COMPRESSION 0
• #define Z_BEST_SPEED 1
• #define Z_BEST_COMPRESSION 9
• #define Z_DEFAULT_COMPRESSION (-1)

Use of this feature depends on the cpabilities of the SFTP servers that files are transferred to or from. For details see zlib manual http://www.zlib.net/manual.html.