DD TAPES ACROSS NETWORKS.

ITEM: RTA000037853



I wanted to know if there is a way of duplicating tapes across a                
network.                                                                        
Say I have a machine A with a 5 G.B tape drive and another machine              
B with the same type of tape drive ...can i somehow duplicate the               
tape from a to B ...                                                            
I tried                                                                         
On A                                                                            
dd if=/dev/rmt0 bs=102  dd of=B:/dev/rmt0 bs=1024                              
                                                                                
I also tried to pipe it through rcp....                                         
                                                                                
---------- ---------- ---------- --------- ---------- ----------                
A: I created a tar archive to tape with a block size of 1024.  I then           
   used the following command to copy the tape to a remote tape drive:          
                                                                               
     dd if=/dev/rmtX ibs=1024 obs=512 | rsh $HOST 'dd of=/dev/rmtXX             
     ibs=512 obs=1024'                                                          
                                                                                
   where | is the pipe symbol and ' is a single quote.  This is a single        
   command and should be entered on one line.  In testing this, I was           
   required to specify an input block size (ibs) and an output block size       
   (obs) or it would not work correctly.  On the left side of the pipe,         
   the ibs should be set to the block size that the source tape was             
   written.  The obs should be set to no greater than 512.  Larger output       
   block sizes also caused problems.  On the right of the pipe, ibs will        
   be equal to 512 and obs is the block size that you would like the            
   target tape to be written.                                                   
                                                                                
   You will have to create a ./.rhosts file to use the rsh command.  This       
   is documented in InfoExplorer under the rsh command.                        
                                                                                
---------- ---------- ---------- --------- ---------- ----------                
                                                                                
                                                                                
This item was created from library item Q651002      9QGDD                      
                                                                                
Additional search words:                                                        
ACROSS ARISC CUSTORG DD IX JAN94 NETWORKS OZIBM OZNEW RISC TAPES                
9QGDD                                                                           
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                               


WWQA: ITEM: RTA000037853 ITEM: RTA000037853
Dated: 11/1996 Category: RISCOSO
This HTML file was generated 99/06/24~12:43:14
Comments or suggestions? Contact us