Re: 7208 @ 7GB

sounds pretty weird, almost like the label may say 7208-234, but look at the
config on the system & see if it says 7208-232, or check config of unit to
see if it has a "232 mode". The 232 limit was 5gb. I've used the -234 with
7gig tapes before.
Also, is yours in a migration tower? Requires certain features to support
the 234. May have an incompatible feature card.
jim

----- Original Message -----
From: "Urbanek, Marty" <Marty_Urbanek@stercomm.com>
To: <midrange-l@midrange.com>
Sent: Tuesday, December 11, 2001 4:40 PM
Subject: Re: 7208 @ 7GB


> Jim,
>
> From V3R2 System handbook:
>
> "Each drive of the 7208 Model 232 provides up to 5G of data per cartridge,
> and the 7208 Model 234 drives provide up to 7G of data. Both have a data
> transfer rate of up to 500K/sec. Using the Improved Data Recording
Capacity
> (IDRC), the effective compressed tape cartridge capacity is 10G for the
7208
> Model 232, and 14G for the 7208 Model 234. The effective data transfer
rate
> is up to 1M/sec for each drive."
>
> I also looked at the charts you referred me to (nice charts BTW, Thanks).
It
> confirms the uncompressed capacity is 7GB, but see where it says "n.a.
> FMT7GB?" I think that holds the key, because when I tried to inztap with
> *FMT7GB, I got an error that the device does not support it. Apparently
> there are devices that actually support the FMT7GB density, but not
> 7208-234. So someone some time ago, perhaps it was the vendor, perhaps the
> manual, told me that you still use FMT5GB but with a longer tape. I have
> been operating under that impression for some time, but never tested it
> until now.
>
> The tape drive has a fancy little logo on it. I think it says SRS. The
carts
> I was using have that symbol too, so I thought everything was going to
work
> great. ;-)
>
> Thanks,
> -Marty
>
> --__--__--
>
> From: "Jim Franz" <franz400@triad.rr.com>
> To: <midrange-l@midrange.com>
> Subject: Re: 7208 @ 7GB
> Date: Tue, 11 Dec 2001 13:44:33 -0500
> Reply-To: midrange-l@midrange.com
>
> where did you get the info that 5gb formatted tape could save 7 gb
> (uncompressed) ?
> jim franz
>
> ----- Original Message -----
> From: "Urbanek, Marty" <Marty_Urbanek@stercomm.com>
> To: <midrange-l@midrange.com>
> Sent: Tuesday, December 11, 2001 1:12 PM
> Subject: 7208 @ 7GB
>
> > Tape drive question:
> >
> > I have a 7208-234. I was my understanding that this drive could write
7GB
> > (uncompressed) to an 8mm cart by using a density of *FMT5GB with an
> > extra-long 160m tape cartridge. However, when I tried to use this over
the
> > weekend for a SAVE 21, it got MCH5204, CPF5101 and my save ended
> > prematurely. These look like a device failure but they are suspiciously
> > right about the time (in my estimation) where it would have been getting
> to
> > the end of that first tape.
> >
> > The model 234 has two drives, which I have configured so they function
as
> > two completely independent tape devices. I specify both device names on
> the
> > SAVE 21, with the intent being for it to fill one, then switch to the
> other.
> > I have done this many times with standard 5GB 112m carts and it worked
> fine.
> > This is the first time I needed the extra capacity of the 160m carts,
but
> it
> > didn't work the way I hoped.
> >
> > Thanks in advance.
> >
> > -Marty
> >
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