On Monday 28 July 2003 11:07, Russell Adams wrote:
>I can't seem to get tapetype to agree to the rated capacity of my
>Powervault 120T (DLT 7000 35G native).
>
>The maximum uncompresses that tapetype registers is about 27G.
>
>Running 'mt status' returns a density code for 35G.
>
>Any ideas why I can't detect the full tape?
>
>Here's the output from tapetype.

Here is the clue that counts, your install is old, its been named 
amtapetype for about a year now and now has facilities to detect the 
drives compression status.  And I'd suspect, from the results you are 
getting that the drives own hardware compressor is on, and that the 
data from /dev/urandom is growing quite a bit in the hardware 
compressor.

>Writing 128 Mbyte   compresseable data:  28 sec
>Writing 128 Mbyte uncompresseable data:  28 sec
>Estimated time to write 2 * 1024 Mbyte: 448 sec = 0 h 7 min
>wrote 860664 32Kb blocks in 2632 files in 24789 seconds (short
> write) wrote 855261 32Kb blocks in 5247 files in 33707 seconds
> (short write) define tapetype unknown-tapetype {
>    comment "just produced by tapetype prog (hardware compression
>off)"
>    length 27065 mbytes
>    filemark 66 kbytes
>    speed 961 kps
>}
>
>Russell

-- 
Cheers, Gene
AMD K6-III@500mhz 320M
Athlon1600XP@1400mhz  512M
99.27% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com attornies please note, additions to this message
by Gene Heskett are:
Copyright 2003 by Maurice Eugene Heskett, all rights reserved.