Output blocksize on Fujitsu 9-track

Wed Dec 12 00:05:36 AEST 1990

henry at zoo.toronto.edu (Henry Spencer) writes:
>In article <638 at brchh104.bnr.ca> mtxinu!sybase!sid at ucbvax.berkeley.edu (S. Cowles) writes:
>>...When XX is 63 and smaller, the operation works
>>fine, no surprises.  64 and larger blocksizes cause the error...
>You don't specify what controller your magtape drive is on.  For a guess,
>it's a Xylogics 472.  The byte-count field on that controller is 16 bits.
>It is incapable of writing a block bigger than 64K-1 bytes.

SCSI itself has a similar limit.  Thats why one can't get more than 126
blocks of 512 bytes in one tape read or write.

Wolfgang Rupprecht    wolfgang at wsrcc.com (or) uunet!wsrcc!wolfgang
Snail Mail Address:   Box 6524, Alexandria, VA 22306-0524