On Wed, 8 Nov 2006, Joshua Baker-LePain wrote:
On Wed, 8 Nov 2006 at 9:55am, Justin Piszcz wrote
I've been able to push a single LTO2 tape to 93-96MB/s and single LTO3 tape to 137-139MB/s. Note, the drive is an HP-Ultrium2-SCSI and HP-Ultrium3-SCSI and nothing else was connected to the SCSI bus. I used NetBackup to perform the tests with various levels of multiplexing.
*And* your data was obviously fairly compressible. Native rated speed for LTO3 is 80MB/s.
-- Joshua Baker-LePain Department of Biomedical Engineering Duke University
Correct, I optimized all settings I could find. I used a file that was all A's, i.e.: AAAAAAAAA and placed it on a ram disk. I wanted to see how far I could push the drive/tape.
With regular filesystem data, I hit 90-127MB/s depending on the level of multiplexing.