HP DW017B - StorageWorks Ultrium 448 Tape Drive User Manual page 71

will always limit the speed at which the drive can write/read data. You will achieve no more
than native rates with uncompressible data.
Examples of files that compress well are plain text files, spreadsheets; those that compress poorly
are those that are either compressed as part of their format (such as, JPEG photographic files) or
stored as compressed (such as, .ZIP files or .gz/.Z files on Unix platforms).
71
Ultrium half-height SAS Tape Drives