DLT Backup ERROR!!

[rhearn]

Hi Folks.

I am running aix 4.3.2 and am attempting a command
line backup of some Oracle files using tar. (company
is to cheap to purchase backup software...)

I consistently get the same error when I attempt to
tar to the dlt 7000. Here is a copy of what I get returned.

/$ tar -cvf /dev/rmt1 ./cner/

a ./cner/NTM14CNER.Z 658 blocks.

tar: 0511-195 An error occurred while writing to the storage media.
: A system call received a parameter that is not valid.

Can anyone point me in the right direction as far as
the parameters I may be missing. Not sure if it is a
blocking issue or what. Does anyone else use scripts to
backup to dlt???

Thanks in advance,
Rich

 

[rhearn]

I solved my own problem - no need to reply.

thanks, anyway.


Rich

 

[ElgisRamon]

Can you comment about the solution?

 

[rhearn]

Absolutely - hope it helps someone else...

I did a tctl -f /dev/rmt1 status and
the results said that the dlt block_size=32790

I changed the block_size of the dlt using:

chdev -l rmt1 -a block_size=4096

This updated the config of the device.

Now each time I do a command line backup I
include the flag -b8.
Example: find ./ -print | backup -ivqf /dev/rmt1 -b8

I could also use a block_size of 512 or 2048...

That's about it.

Regards,
Rich