M2488 PRODUCT GUIDE

TAPE UNIT SCSI COMMANDS

Table 4-69. Offset

BOUNDARY

2 OFFSET BOUNDARY

BUFFER OFFSETS

 

 

 

0

20=1

Byte boundaries

1

21=2

Even-byte boundaries

2

22=4

Four-byte boundaries

3

23=8

Eight-byte boundaries

4

24=16

16-byte boundaries

5

25=32

32-byte boundaries

** NOTE **

1.A buffer may be altered between the WRITE BUFFER and READ BUFFER commands by execution of commands from another initiator or background diagnostics. Buffer testing applications may avoid buffer usage conflicts with other initiators by use of linked command, or by reserving the addressed LUN.

2.There is only one 512-byte NVRAM area available. This area may be accessed by any initiator. The NVRAM is not partitioned into “per initiator” areas.

April 1997

CG00000-011503 REV. A

4-73

Page 155
Image 155
Fujitsu M2488 manual Boundary Offset Boundary Buffer Offsets