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Article #1390

Re: How does one copy a SCSI tape ?

#1390
From: Neil Todd
Date: Fri, 01 Sep 1989 16:16
19 lines
1498 bytes
In article <1080@brazos.Rice.edu> harvard!cloud9.Stratus.COM!fmbutt@ursa-major.spdcc.com (Farooq Butt) writes:
: X-Sun-Spots-Digest: Volume 8, Issue 106, message 2 of 15
: 
: You have an OS tape. You wish to copy it for safekeeping. You use "dd" but
: it doesn't seem to work.  What is a good way to duplicate OS release
: tapes.  Again, I reiterate, this copying is merely for safekeeping as
: tapes tend to get chewed up at our site ....

Don't forget that there are multiple files on the distribution tape, the
Sun documentation gives your the layout - to use non rewinding tapes for
input and output. Then do a "mt -f /dev/devicename rew" when done.

You should try using the high density tape (/dev/nrst8 if cart, /dev/nrmt8
if tape), and a sensible (small) blocking factor. Continue to use "dd".

Neil Todd			| ..In general, it is best to assume that the
PSI%234237100122::neil		| network is filled with malevolent entities
neil@gid.co.uk			| that will send in packets designed to have
Group-ID Ltd			| the worst possible effect...
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!husc6!rice!sun-spots-request
From: neil@stl.stc.co.uk (Neil Todd)
Newsgroups: comp.sys.sun
Subject: Re: How does one copy a SCSI tape ?
Keywords: Miscellaneous
Message-ID: <1423@brazos.Rice.edu>
Date: 1 Sep 89 16:16:44 GMT
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X-Sun-Spots-Digest: Volume 8, Issue 119, message 3 of 15