Thanks to;
"Jeffrey S. Jewett" <spider_at_umd5.umd.edu>
John Stoffel <jfs_at_fluent.com>
Michael Smith <mikes_at_persimmon.com>
"Morrison, Kathy D." <MORRIKD1_at_central.SSD.JHUAPL.edu>
Mike Candalor <candalom_at_itsi.disa.mil>
Guillaume Gerard <gege_at_cal.enst.fr>
Dave <norton_at_nrlmry.navy.mil>
"K. M. Peterson" <KMP_at_WI.MIT.EDU>
Georeg Marinos <gmarinos_at_socrates.berkeley.edu>
alan_at_nabeth.cxo.dec.com (Alan Rollow - Dr. File System's Home for
Wayward Inodes.)
"Peter A. Kemp" <pkemp_at_rockdale.com.au>
Most everyone said to ignore the type of drive that NSR is giving as it
means little. NSR will write the end of file marker as far into the tape
as it can. This may happen to early if NSR sees an error on the drive.
The concensus was that there was a media fault happening thus the end of
file mark was being written early in the tape and I was not getting much
data
on the tape.
What I had failed to mention was that I have been doing tar's and dump's
to this
device as my previous backup method and had been getting around 7GB
every day.
I also failed to mention that this was on a DU 3.2C machine using NSR
4.2.
I have now moved that 8mm tape drive to a 4.0B machine and it seems to
be doing much better (at least I've been able to write > 2Gb so far). I
therefore suspect either
NSR 4.2 is not compatible with DU 3.2C or that my 3.2C box needs some
patches (I
haven't installed the Jumbo's yet).
Thanks to the above for the help!
--
Rob Hamm
UCFV Systems and Networks Administrator
Original Question:
>
> I'm evaluating the full version of NSR and have a single
> Exabyte 8500c (10GB capacity). In NSR the best I can select as the
> media is 8mm 5GB which would be fine if I could get even close
> to 5GB on a tape. NSR keeps stopping after a writing a small amount
> onto the tape and then claims the tape is full and it needs a new one.
> My last backup said it wrote 864MB on one client and 346MB on another
> for a total of 1.2GB, far less than the 5Gb I was expecting (and this
> was on a never before used tape, freshly labeled).
>
> So my questions;
>
> 1) How do I get more data on a tape (ie. what have I done wrong)?
>
> 2) Can I get this thing to recognize my 10GB tape drive?
> (BTW, I do realize that 10GB is theoretical,... 7GB is more
> realistic)
>
> Thanks!
>
> --
> Rob Hamm
> UCFV Systems and Networks Administrator
Received on Fri Jul 18 1997 - 21:15:06 NZST