
9-8
SCSI REFERENCE 1014826
CHAPTER 9—MODE SELECT (15h)
Magnum 448—The library may have one, two, three, or four tape drives
with a default starting address of 51h (81).
Number of Data Transfer Elements – Bytes 16 and 17
This field identifies the number of tape drives installed in the library.
Magnum 224, T24, or SL 2U—The library may have one or two tape drives
installed. The valid value for this field is 1 or 2.
Magnum 448—The library may have one, two, three, or four tape drives
installed. The valid value for this field is 1, 2, 3, or 4.
Note: The actual number of tape drives installed cannot be changed by this field.
The tape drive configuration must be altered through the Front Panel
under the Drive Configuration menu.
9.2.3 UNIQUE PROPERTIES PAGE (PAGE CODE 21H)
The Unique Properties Page sets options that are unique to the library.
Page Code – Byte 00, Bits 5 through 0
This field identifies the Unique Properties page. The value of this field must be
21h.
Page Length – Byte 01
This field indicates the length, in bytes, of the Unique Properties parameter
list. The valid value for this field is 04h (4) which indicates that there are an
additional 4 bytes of data that follow this byte.
Bit
Byte
7 6 5 4 3 2 1 0
00 Reserved Page Code (21h)
01 Page Length (4h)
02 (MSB)
Reserved
(LSB)
03
04 MaxStor Reserved MaxStorAddr
05 Reserved DisIEP DislEP2 Reserved Dead Reserved
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