Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!rutgers!mcnc!decvax!decwrl!pyramid!fmsrl7!nucleus!netsys!len
From: len@netsys.UUCP (Len Rose)
Newsgroups: comp.sys.att
Subject: 3B2 tape to tape copy
Message-ID: <1590@netsys.UUCP>
Date: Sun, 25-Oct-87 02:41:20 EST
Article-I.D.: netsys.1590
Posted: Sun Oct 25 02:41:20 1987
Date-Received: Tue, 27-Oct-87 05:12:01 EST
Organization: NetSys Public Access Network,Germantown, MD
Lines: 36
Keywords: Does anyone know..


Hi..

 Something I've been trying to do for some time has me
 quite frustrated..I need to be able to copy tape to tape
 on our 3B2 system here (yes,we have two CTC's) , and have
 not been able to come up with a fast method of accomplishing
 this.

 So far, We have tried:

 ctccpio -idvT /dev/rSA/ctape1 | ctccpio -ovKT /dev/rSA/ctape2

 Which obviously writes the file to the disk,then pipes the filenames
 to the second ctccpio and reads them from the disk..Obviously an exercise
 in futility,even though it works..since it is slow,and wastes system resources.

 dd < /dev/rSA/ctape1 > /dev/rSA/ctape2
 cp /dev/rSA/ctape1 /dev/rSA/ctape2

 This works fine,does not waste system resources,but is slow as hell.

 I am sure that someone out there has developed their own tape to tape copy
 program,which is fast and reliable.I am also sure that ATT themselves have
 a program to duplicate all those distribution tapes.

 If someone , in their kind hearted souls sent me something useful,I would
 be extremely appreciative.. At any rate,maybe someone can suggest something
 obvious that I am missing..

 By the way..most of the tapes I need to copy are standard ctccpio format tapes.


-- 
Len Rose -* Netsys Public Access Network *- The East Coast Machine
301-540-3656,3657,3658,3659    3B2/Unix SV3.0