Copying from one tape to another tape

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2 total messages Started by Steve Bridges Thu, 11 Jan 1990 02:43

Author: Steve Bridges
Date: Thu, 11 Jan 1990 02:43

31 lines
1659 bytes

My co-workers and myself are trying to figure something out.  The situation
is, suppose, I have a tape in cpio format, and want to copy it to another
tape (separate drive) using cpio without putting a temporary copy on disk.

A possible scenario follows:  I have a 150mb tape with some files somebody
with another tower wants.  They only have a 45mb tape drive, but I have
both a 150mb and a 45mb tape drive.  I want to copy what is on
the 150mb tape to a 45mb tape without putting a copy in disk.

So far, I have tried:

cpio -idmuvcB < /dev/rtp | cpio -ocvB > /dev/rtp1

It worked, but put a copy of all the files on disk.

I tried cpio -ocvB < `cpio -idmuvcB < /dev/rtp` > /dev/rtp1
but it didn't work

Would  cpio -idmuvcB < /dev/rtp > cpio -ocvB > /dev/rtp1
do what I want without putting a copy on disk?

Thanks in advance for any responses.




-- 
Steve Bridges                    | NCR - USDPG Product Marketing and Support OLS
Steve.Bridges@Dayton.NCR.COM     | Phone:(513)-445-4182 622-4182 (Voice Plus)
..!ncrlnk!usglnk!pmday_2!steve   | AOPA #916233
..!uunet!ncrlnk!usglnk!pmday_2!steve| PP-ASEL, AMEL

Re: Copying from one tape to another tape

#10

Author: Steve McClure
Date: Thu, 11 Jan 1990 14:05

15 lines
1200 bytes

In article <812@pmday_2.Dayton.NCR.COM> steve@pmday_2.Dayton.NCR.COM (Steve Bridges) writes:
|A possible scenario follows:  I have a 150mb tape with some files somebody
|with another tower wants.  They only have a 45mb tape drive, but I have
|both a 150mb and a 45mb tape drive.  I want to copy what is on
|the 150mb tape to a 45mb tape without putting a copy in disk.
|
|Thanks in advance for any responses.

Steve, what about dd if=/dev/150Mtape of=/dev/45Mtape bs=100k    ???

Steve McClure
-----
stevem@Columbia.NCR.COM
The above are my opinions, which NCR doesn't really care about anyway!
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