Справочник Пользователя для IBM DCS9550 1S1
Installation
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IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide
2.8
Drive Enclosure Device Addressing
Each enclosure has 16 drive bays. The SEL_ID of each drive is determined by the device slot
(0-15) in which it is installed and the address range setting, which is set by means of the
Enclosure ID switch on the Ops Panel (shown in
(0-15) in which it is installed and the address range setting, which is set by means of the
Enclosure ID switch on the Ops Panel (shown in
) at the rear of the
enclosure. The switch settings are shown in Table 2–2
Figure 2–9
Installing an SCM I/O Module in Bay 4
Table 2–2
Ops Panel Switch Functions (Default settings for DCS9550 1S1 Storage Expansion Unit
SCM usage at 1Gb/s)
Switch
Number
Number
Function
Recommended
Setting
Setting
Definition
1 thru 6
Not Used
Off
7 & 8
Drive Loop
Speed Select
Speed Select
Sw 7
Sw 8
DCS9550 Controllers
On
Off
Force 2Gb/s
9 & 10
Drive
Addressing
Mode Selection
Addressing
Mode Selection
Sw 9
Sw 10
DCS9550 Controllers
Off
On
Mode 1