Backed up from DLT8000 restore to DLT7000, how to do?

[Worapoj P.]

Dear all expertise,

I have Production machine that used backup device DLT8000 4/40 how to do if I would like to restore to Testing machine that used DLT7000. Some HP guy told me it can create device file for DLT8000(real one) to simulate to DLT7000. But I not have instruction on habd. Could you please provide me the instruction to do that.

Thanks in advance for hels,
Worapoj

[Paula J Frazer-Campbell]

Hi

I you backup onto a DLT III tape on the 8000 then the restore on the 7000 you should have no problems.


Paula

[Carlos Fernandez Riera]

you can use mksf command to create special files wit some required characteristics.

see man mksf.... I apoligize for not telling more info, but for DLT drives there are some options that is not very clear for me now.

[Worapoj P.]

Hi Campbell,
You meant you didn't need to do anything before. I've tried when I put media that backed from DLT8000 to DLT7000 drive, after that the drive have alerted sound then LED indecated need to cleaning.

As I know we need to create device file simulate to DLT7000 drive.

Please suggest,
Worapoj

[Paula J Frazer-Campbell]

Hi

If you use a 7000 tape in the 8000 drive then the 8000 will use that tape format.

Paula

[Vincent Farrugia]

Hello,

Yes you're right; media written from a DLT8000 can't be read into a DLT7000. But... they write using the same format. So you can reduce the speed of the DLT8000 drive to make it think it's a DLT7000 drive; then you can read that tape on a normal DLT7000.

Writing on Tape III forces the DLT8000 drive to write in DLT7000 format automatically.

HTH,
Vince