2-6
Sun StorEdge D2 Array Installation, Operation, and Service Manual • February 2002
▼
To Configure and Cable the Array
1. Make sure the option switch 1 is set properly for split-bus or single bus
configuration.
■
For single-bus configuration, make sure switch 1 is Up on the single ESM.
■
For a split-bus configuration (with two ESMs), make sure switch 1 is Down on
both ESMs.
FIGURE 2-1
ESM With Configuration Options Switches
Caution –
If you replace a failed ESM and the switch 1 is not set properly, data
corruption can occur.
2. Assign a number to the ESM using the Unit ID rotary switch.
See “Prepare the connected host to be able to test and monitor the D2 array.” on
page 2-4. Hint: When an array has two ESMs, assign the same number to both ESMs.
The number is used for finding an array not for finding an individual ESM.
3. Connect the SCSI cables between the host and the ESM.
See “Supported Configurations” on page 1-19, which shows where to connect the
SCSI cables depending on the configuration.
D2
SCSI-A
SCSI-B
4 3 2 1
Configuration
Options
Unit ID
SCSI
o
1
2
3
4
5
6
7
8 9
4 3 2 1
Configuration
Options
Unit ID
For single-bus, set switch 1 Up.
For split-bus, set switch 1 Down.
Содержание StorEdge D2
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