Maybe they really are both pointing at the same physical device... Why
don't you get a blank tape, stick it in one drive.... Write some data to
it... Eg:

tar cvf /dev/rmt1.1 /etc/motd

Then run

Tar tvf /dev/rmt2.1 


And see if you get your tar output back from the second device...

 

> -----Original Message-----
> From: EMC NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of ramo
> Sent: Tuesday, 3 June 2008 4:58 PM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] The volid on tape and the one in media 
> base is not the same!
> 
> mt -f /dev/rmt2.1 status
> 
> rmt2 Available 0A-08-02 Other FC SCSI Tape Drive
> attribute      value              description                 
>               user_settable
> 
> block_size     0                  BLOCK size (0=variable 
> length)            True
> delay          45                 Set delay after a FAILED 
> command          True
> density_set_1  0                  DENSITY setting #1          
>               True
> density_set_2  0                  DENSITY setting #2          
>               True
> extfm          yes                Use EXTENDED file marks     
>               True
> location                          Location Label              
>               True
> lun_id         0x2000000000000    Logical Unit Number ID      
>               False
> mode           yes                Use DEVICE BUFFERS during 
> writes          True
> node_name      0x100000e00203649f FC Node Name                
>               False
> res_support    no                 RESERVE/RELEASE support     
>               True
> ret_error      no                 RETURN error on tape change 
> or reset      True
> rwtimeout      144                Set timeout for the READ or 
> WRITE command True
> scsi_id        0x10200            SCSI ID                     
>               False
> var_block_size 0                  BLOCK SIZE for variable 
> length support    True
> ww_name        0x100000e00223649f FC World Wide Name          
>               False
> 
> 
> mt -f /dev/rmt1.1 status
> 
> rmt1 Available 0A-08-02 Other FC SCSI Tape Drive
> attribute      value              description                 
>               user_settable
> 
> block_size     0                  BLOCK size (0=variable 
> length)            True
> delay          45                 Set delay after a FAILED 
> command          True
> density_set_1  0                  DENSITY setting #1          
>               True
> density_set_2  0                  DENSITY setting #2          
>               True
> extfm          yes                Use EXTENDED file marks     
>               True
> location                          Location Label              
>               True
> lun_id         0x1000000000000    Logical Unit Number ID      
>               False
> mode           yes                Use DEVICE BUFFERS during 
> writes          True
> node_name      0x100000e00203649f FC Node Name                
>               False
> res_support    no                 RESERVE/RELEASE support     
>               True
> ret_error      no                 RETURN error on tape change 
> or reset      True
> rwtimeout      144                Set timeout for the READ or 
> WRITE command True
> scsi_id        0x10200            SCSI ID                     
>               False
> var_block_size 0                  BLOCK SIZE for variable 
> length support    True
> ww_name        0x100000e00223649f FC World Wide Name          
>               False
> 
> +-------------------------------------------------------------
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> |Forward SPAM to abuse AT backupcentral DOT com.
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