IBM TotalStorage FAStT200, Installation And User Manual

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Chapter 3. Cabling the storage server
23
Use the following procedure and illustration to connect a second expansion unit to the
storage server after previously adding the first expansion unit.
1. Disconnect cable
򐂰
1
򍦠
from its current connection and connect it to the In port on
the left ESM board on the new expansion unit.
2. Connect cable
򐂰
2
򍦠
to the In port you disconnected in step 1 and the Out port on
the left ESM board on the new expansion unit.
3. Connect a third cable 򐂰
3
򍦠 to the In port on the right ESM board on the first
expansion unit and the Out port on the right ESM board on the new expansion
unit.
4. Make sure that each expansion unit has a unique ID (switch setting) and that the
left and right ESM board switch settings on each expansion unit are set to an
identical value.
After you complete all connections, the storage server locates the new drives.
5. Use the storage-management software to check the status of the new drives,
correct any errors found, and configure the new drives.
For more detailed information about cabling the storage server and expansion units,
refer to the IBM FAStT200 Fibre Channel Cabling Instructions that come with the
storage server.
New cables
In port
Out port Out port
New expansion unit
First expansion unit
Storage server
with two RAID controllers
Left ESM board Right ESM board