Disk Drive Sbb Device Addressing; Figure 7-3 Typical Drive Sbb Bezel Label - Compaq StorageWorks DS-BA370 Series User Manual

Ultrascsi raid enclosure
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1
DS-RZ1CB-VW
2
4.3 GB
LUN #
3
40
F20
ID #
4
W
CH #
5
6

Disk Drive SBB Device Addressing

Figure 7–3 Typical Drive SBB Bezel Label
1.
Device model number
2.
Device storage capacity
9
3.
User-assigned SCSI LUN
8
4.
User-assigned SCSI identification number (target ID)
W
5.
User-assigned array controller channel number—the
array controller port or SCSI bus number
7
6.
SCSI bus device width:
CXO5917A
N — an 8-bit device (narrow)
W — a 16-bit device (wide)
7.
StorageWorks shelf type (wide or narrow)
compatibility:
N — device is 8-bit shelf compatible (narrow)
W — device is 16-bit shelf compatible (wide)
N/W — device is 8- and 16-bit shelf compatible
8.
Bus speed expressed in megabits per second (Mb/s):
S — Slow device. For example: S5 = 5 Mb/s
F — Fast device. For example: F10 = 10 Mb/s or F20
9.
Maximum rate at which this device transfers
data—expressed in megabytes per second (MB/s)
Determining the disk drive SBB device address is a function of the
following:
PVA SCSI ID switch setting (0, 2, or 3)
Shelf number containing the disk drive SBB
Figure C
ALLOUTS
= 20 Mb/s
UltraSCSI RAID Enclosure 7–3
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