need help with tape backup

[Adam Williams]

check the tape drive manufacturer's website for a firmware upgrade?

Darryl Cook wrote:
>
> Well I have the compression working now with the dump -z2 command.  
> What I have learned though is this:
>
> It works with AIT-2 tapes but not with AIT-3 tapes.  The unit is a 
> SDX-700V.  It supposedly works with AIT-3 tapes.   Any suggestions?
>
> darryl
>
> Quoting Adam Williams:
>
> >       have you tried doing mt -f /dev/st0 compression on
> >
> > or using software compression?  tar -jtvf /dev/st0 /root /home /sbin
> > /bin /mnt /opt /var /etc
> >
> > etc...
> >
> > Darryl Cook wrote:
> >
> >   I need some help with tape backups.  System specs are:
> >
> >   PowerEdge 2850   running Redhat AS v4.
> >
> >   Sony Lib/81  AIT-3,  SDX-700V  tape drive.
> >
> > problem:   Im only getting around 75-85 gb on a tape before it runs
> > out of room.  It apparently isnt compressing the data.  Im using the
> > AIT-3  100/250gb tapes so we should see much more than that.  Ive
> > tried several things including the following:
> >
> >   dump -j2  and dump -z2 commands but get errors it looks like right
> > before end of the dump.
> >
> >   Error with sense data:sense key Medium Error   and Additional
> > sense: Cartridge fault.
> >
> > Ive also tried setting mt -f <device> setblk 0  command but no better
> > luck.
> >
> >   Anyone have any experience with this tape drive....suggestions
> > appreciated.
> >
> >   darryl cook
> >
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