Re: Tape type with HW compression


It should be clearer in the docs that use of the tapetype program
(now amtapetype) is only of value if you are using software rather
than hardware compression (you should not use both although on
newer drives it doesn't hurt as it once did).


Snip snip snip...

I actually ran amtapetype both with hw compression and without it.
Total of 25 hours run time!  :-)

The results are about the same.

define tapetype DLTIV {
    comment "by tapetype prog (hardware compression on)"
    length 17304 mbytes
    filemark 0 kbytes
    speed 1259 kps
}

define tapetype DLTIV-NoComp {
    comment "by tapetype prog (hardware compression off)"
    length 19503 mbytes
    filemark 0 kbytes
    speed 1406 kps
}

I was hitting end of tape a couple of days ago with HW compression.

I am now trying it with software compression and I'll see how that goestonight.

Worst case scenarion would be having to start keeping two sets ofconfigs, and backup on 2 fifferent tapes every night. Or invest in achanger but I don't see myself doing that for home. :-)

I would have thought amanda would have simply asked me to insert a newtape when it reached the end. But it looks like it just aborted.Actually it did nothing for a REALLY long time.. and then finally aborted.


Thanks,
Mike