copy tape to tape using dd

[TrusaPerTrifs]

I have two tape drives attached to my system , and i am trying to copy one tape to another using both tape drives and using the following command :





dd if=/dev/rmt/1 of=/dev/rmt/2



but unfortunitly i am getting the following error :



read: Not enough space

0 0 records in

0 0 records out





wht do u suggest to do to make another copy of that tape ?





Best regards

More Information:

1. How to Copy Files to a Remote Tape Device (tar and dd)
2. Replace //SYSUT2 DD with one of the following in order to copy a tape file to: printer: //SYSUT2 DD SYSOUT=A
3. JOB (label 2) contains the JCL to unload all other existing data sets from tape to disk
4. I have two tape drives attached to my system , and i am trying to copy one tape to another using both tape drives and using the following command : dd if=/dev/rmt/1 of=/dev/rmt/2 but unfortunitly i am
5. This section explains how to copy all data sets from tape to disk
6. Code: Select all //Step100 EXEC PGM=SORT,REGION=3M //SYSIN DD * SORT FIELDS=COPY //* //SORTIN DD DSN=MHC
7. See mt(1) for information about operations on raw magnetic tape devices
8. The DD command will copy b-by-b the whole file system

[duongquocan]

Try dd again but specify the blocksize of the tape with bs=n where n is the blocksize of the tape.

More Information:

1. IIRC this is not a problem related to virtual tape,
2. If the rd_fl function has processed an original field tape correctly, the last line of output therefrom will be a "cd" command (for example: cd LE
3. Indicates a remote shell that is started to extract the files from the tape device by using the dd command
4. In order to copy a transport file from tape to disk at the target computer, issue the UNIX dd command
5. When copying to MVS DASD volumes or magnetic tape volumes, IEBGENER will re-block the output data set with a block size that is most
6. NAME dd - convert and copy a file SYNOPSIS dd [ option=value ]
7. To restore/read the backup (cpio) on the local machine from the remote machine's (remhost) tape drive (/dev/rmt0)
8. The document shows examples to copy sequential data sets to or from disk and tape; or to a printer
9. //SYSUDUMP DD SYSOUT=* //TAPEIN DD DSN=FIRSTDS,UNIT=TAPE, //* unit=tape36 (if tape is used in the SILO)
10. For example, the following shell commands copy data in 512 kB blocks between a disk and a tape, but do not save or restore a 4 kB label at the start of the disk: disk=/dev/rdsk/c0t1d0s2 tape=/dev/rmt/0 # Copy all but

[leanhngoc]

Hi



I tried to use bs=126 the default , but it still give the same error .





but i found another way to do it using tcopy .



tcopy /dev/rmt/1 /dev/rmt/2



and it worked fine .





thanks and best regards .

More Information:

1. If the vlafiller function crashes due to tape I/O errors, one can copy the filler tape onto disk using the 'dd' command as described in the Glish script
2. It can be used to copy and convert magnetic tape formats, convert between ASCII and EBCDIC, swap bytes, and force to upper and lowercase
3. 32768 obs=64k conv=osync of=/dev/nsa0 This modification is helpful for recompilation of tapes
4. 3 posts - 1 author - Last post: Jan 24, 2009when i tried to run mksysb to tape drive, i am getting error message
5. Insert a new tape in your drive and copy the files to the tape: mt -f /dev/nrst0 rew dd if=tape
6. -print |cpio -ocBv /dev/rmt0 Using cpio to list the entries in a file archive on a tape device: # cpio -
7. This program should then probably copy a miniroot > from tape to disk