The majority of those, who answered, sees no problem in using a HP-written
DAT-tape on a TLZ07. Only Harald Lundberg says, the HP shouldn't have used ANSI-mode, sea answer below.
Ian Hogg seas problems if there is a dump on the tape.
Thanks to all who replied, here are their answers:
============================================================================
>From Alan Rollow:
Date: Tue, 29 Aug 1995 00:07:51 -0600
From: alan_at_nabeth.cxo.dec.com (Alan Rollow - Dr. File System's Home for Wayward Inodes.)
The TLZ07 should be able to read all 4mm density combinations. The
only problem I can imagine is that the HP drive uses a different
internal block size than ours. The equivalent problem would be
reading a disk formatted for 2 KB sectors on a system expecting
512 byte sectors.
============================================================================
>From Rudi Boerner:
From: rb_at_bogart.mpib-tuebingen.mpg.de
X-Mts: smtp
sollte kein Problem sein.
mfg
rb
============================================================================
>From Harald Lundberg:
Date: Tue, 29 Aug 1995 12:16:55 +0300 (EET DST)
From: Harald Lundberg <hl_at_tekla.fi>
It depends. HP supports ANSI tape labelling, which almost nobody else
supports. But you can write a normal tape on an HP without problems,
too. If it's ansi labelled, you need an HP drive *and* host, if it's
a normal tape it's no problem.
============================================================================
>From Arun Sanghvi:
From: sanghvi_at_proto.wilm.ge.com (arun sanghvi)
Date: Tue, 29 Aug 1995 07:50:59 -0400 (EDT)
Hello,
There should not be a problem. I move data between HP and
Alpha using 4mm DAT.
Arun Sanghvi
GE-NF&CM
============================================================================
>From Dr. Thomas P. Blinn:
Date: Tue, 29 Aug 95 08:39:02 -0400
From: "Dr. Tom Blinn, 603-881-0646" <tpb_at_zk3.dec.com>
There *should* be no problem. You may need to specify the drive name as
/dev/rmt?l (low density) to turn off the drive's compression, although it
(the drive) is supposed to do this automatically if the tape wasn't done
with hardware data compression.
The TLZ07 can read and write 4mm DAT tapes compatible with all standard
supported DAT drives; some drives (e.g., the TLZ04) lack compression in the
hardware and can only handle 60 meter tapes; some drives have compression in
hardware and can read/write 90 meter tapes (e.g., the TLZ06) and some, like
your TLZ07, have data compression and can handle 120 meter tapes.
============================================================================
>From Ian Hogg:
From: ijh_at_ces.com
Date: Tue, 29 Aug 1995 08:36:07 -0600 (CT)
We do it all the time. When someone sends me a DAT tape written on an HP
I extract as follows:
On an HP:
remsh alpha_machine_name dd if=/dev/rmt0h ibs=10k | tar xvf -
If the tape contains a tar dump and it was dumped on an HP you will probn Hy
have problems if you try and detar it on your Alrob.
============================================================================
>From Eric R.Showalter:
Date: Tue, 29 Aug 95 12:37:30 -0500
From: eshowalt_at_mercury.jlfrench.com
Haven't had any problems reading 4mm DAT written on an HP. We are running
DEC3000/600's and a TLZ06. So if our 06 can read them your 07 should be able to.
BTW, I have had (am having) some problems with a HP DAT drive (HP2000) reading a
tar tape I made on our TLZ06 - just fYI.
Like I said should be *no* problem especially if it is in TAR format.
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Received on Wed Aug 30 1995 - 08:32:24 NZST