How do I change Block Size

[gdc2001]

I have a Win NT Networker server running 6.1.1

Attached to it are two Jukeboxes, one fibre-channel on an LP8000 card, the other scsi on an adaptek 29160.

Both Jukeboxes run DLT7000 drives, but the Fibre-channel unit writes to tapes with a block size of 128k and the scsi at 64k.

How can I get the scsi Jukebox to write at 128k as well?

Any help would be great.....

 

[bdm123]

You may have to change the registry setting for the controller to allow greater than 64KB blocksize, I did this for the adaptec controller.
Changed the controller to allow 256 KB max blocksize by changing the registry parameter:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\adpu160m\Parameters\Device\MaximumSGList set to 0x41

Also, add the system environment variables below.

NSR_DEV_BLOCK_SIZE_DLT7000 set to 128
NSR_DEV_BLOCK_SIZE_MSG set to Yes to see the settings at startup.

 

[gdc2001]

Thanks, worked like a charm!