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164
8.6.5.5
Unit Serial Number page
This page provides a product serial number for the target or logical unit. See Table 100 following.
Table 100:
Unit Serial Number page (80h)
Bit
7
Byte
0
PERIPHERAL QUALIFIER [1]
1
PAGE CODE (80h)
2
Reserved
3
PAGE LENGTH [2]
4
:
Product Serial Number [3]
n
[1]
The PERIPHERAL QUALIFIER field and the PERIPHERAL DEVICE TYPE field are defined in Table 79,
Note [1].
[2]
The PAGE LENGTH field specifies the length in bytes of the product serial number page. Older products
that only support the Product Serial Number parameter will have a page length of 08h, while newer prod-
ucts that support both parameters will have a page length of 14h. If the ALLOCATION LENGTH is too
small to transfer all of the page, the page length shall not be adjusted to reflect the truncation.
[3]
The Product Serial Number field contains ASCII data that is vendor-assigned serial number. The least sig-
nificant ASCII character of the serial number shall appear as the last byte in the Data-In Buffer. If the prod-
uct serial number is not available, the device server shall return ASCII spaces (20h) in this field.
8.6.6
Firmware Numbers page (C0h)
Table 101 applies to drives that do not supply a servo RAM release number and date and a ROM release date.
Table 102 applies to model families other than those covered by Table 101.
Table 101:
Firmware Numbers page (C0h)
Bit
7
Byte
PERIPHERAL QUALI-
0
FIER [1]
1
PAGE CODE (C0h) [2]
2
0
3
PAGE LENGTH (18h) [3]
4
:
SCSI FIRMWARE RELEASE NUMBER [4]
11
12
:
ASCII space characters
19
20
:
Servo ROM Release Number [4] [5]
27
[1]
The PERIPHERAL QUALIFIER field and PERIPHERAL DEVICE TYPE field value of 00h indicates a
direct-access device (magnetic disc) is connected to this logical unit.
[2]
PAGE CODE (C0h) provides the firmware release numbers for the drive (see Table 102).
6
5
6
5
0
0
SCSI Interface Product Manual, Rev. B
4
3
PERIPHERAL DEVICE TYPE [1]
4
3
PERIPHERAL DEVICE TYPE [1]
0
0
2
1
2
1
0
0
0
0
0
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