>In the listing of backup set members, Retrospect gives the space >taken up on tape. Is this value represent the total of the raw data >or the total of compressed data? I am seeing about 45 GB on the 230 >meter AIT-2 tapes and presume this a compressed value, that the raw >data is somewhat higher than this. If it is the raw value, then the >tapes are not storing the amount I think they should be. No one replied, so I called tech support and learned that Retrospect reports the total value of the data uncompressed. This means I am not storing anywhere near the numbers quoted on the tape (100 GB with 2:1 compression). It turns out that the tape spins at a constant rate, so if throughput is slow, sections of the tape are skipped and that space is lost! In order to utilize the full capacity of a tape, throughput must equal that of the tape drive. -- -- Maurice Volaski, [EMAIL PROTECTED] Computing Support, Rose F. Kennedy Center Albert Einstein College of Medicine of Yeshiva University -- ---------------------------------------------------------- To subscribe: [EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives: <http://list.working-dogs.com/lists/retro-talk/> Problems?: [EMAIL PROTECTED]
