Re: Tape Density Question

[Chuck Lewis <clewis@xxxxxxxxxx>]

Thanks Allen !

I was JUST getting ready to order more tapes and I will get the 7gb ones and try
them !

Chuck

"Allen, Stuart" wrote:

> These 8mm drives can take a tape thats formatted up to *FMT7GB.  The message
> is basically warning you that you aren't formatting the tapes to the
> "standard" format for that device - ie 7gb.
> Of course you'll need to have tapes that are capable of being formatted to
> 7gb - I haven't got any Maxell ones, but my Exabyte tapes are "160m XL".
>
> Data transfer should be circa 500Kb/sec uncompressed, with up to 1Mb/sec
> compressed.
>
> I can't find any info as to settings for data compression/compaction for
> this drive.  However, in the Backup & Recovery manual, the recommended
> settings for our internal 8mm drive(6390) is DTACPR *DEV, COMPACT *DEV,
> USEOPTBLK *NO.  I'd experiment with the latter to see if it makes any
> difference.
>
> HTH
>
> Regards,
> Stuart
>
> Stuart Allen
> European Systems Analyst
> Fellowes
>
> mailto:sallen@fellowes.com
>
> > -----Original Message-----
> > From: Howard Weatherly [SMTP:hweatherly@dlis.dla.mil]
> > Sent: Thursday, December 02, 1999 2:19 PM
> > To:   MIDRANGE-L@midrange.com
> > Subject:      Re: Tape Density Question
> >
> > What value does *DEVD refer to? Maybe changing that would get rid of the
> > messages. We have an Exabyte 8mm and we have not been able to get it to go
> > very
> > fast either.
> >
> > Chuck Lewis wrote:
> >
> > > Hi Folks,
> > >
> > > We have an IBM 9427-210 Cartridge tape unit (if anyone wants to donate
> > > something faster...).
> > >
> > > I format the tapes (Maxell HS-8/112 Helical-Scan 8mm Data Cartridge) at
> > > 5GB.
> > >
> > > When I save something I get a message CPF4204 "Volume 'nnnnnnnnnn' on
> > > device TAP01 is density *FMT5GB". And the cause "The output volume is a
> > > different density than specified for file QSYSTAP in QSYS. blah, blah,
> > > blah".
> > >
> > > File QYS/QSYSTAP shows as DENSITY(*DEVD). Everything saves (and
> > > restores) OK, but not very fast...
> > >
> > > Is this OK or is there something I should be doing ?
> > >
> > > TIA,
> > >
> > > Chuck
> > >
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