Here is what I've gotten twice, with hardware compression on and off.

[root@localhost amanda]# ./sbin/amtapetype -f /dev/tape -e 400g -o
Writing 2048 Mbyte   compresseable data:  31 sec
Writing 2048 Mbyte uncompresseable data:  31 sec
Estimated time to write 2 * 409600 Mbyte: 12400 sec = 3 h 26 min
wrote 12320768 32Kb blocks in 94 files in 5655 seconds (short write)
wrote 12386304 32Kb blocks in 189 files in 6025 seconds (short write)
define tapetype unknown-tapetype {
   comment "just produced by tapetype prog (hardware compression off)"
   length 386048 mbytes
   filemark 0 kbytes
   speed 67752 kps
}
*** glibc detected *** free(): invalid pointer: 0xf7d9a000 ***
Aborted


Anybody got any ideas?  Will this cause a problem, or is it a problem?
Says it aborted, but it gave me a tapetype definition that looks
right (it's lto-3 ultrium which according to the wiki at
http://wiki.zmanda.com/index.php/Tapetype_definitions#LTO_Ultrium_3_with_400.2F800_Gbyte_tapes
for 400G tapes the tape length is 402432 mbytes)  Not sure if this is
cause for concern.

Thanks

Nick


--
Nick Jones
University of Iowa
Dept of Neurology
Systems Analyst
319-356-0451