IBM TotalStorage 2109 M12, Инструкция по установке и обслуживанию

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Removing and replacing the WWN card
The WWN card is highly reliable. Before you replace the WWN card, verify that a
replacement is necessary. If you are installing a new WWN card, the installation
instructions are included with the product.
If you are going to replace a WWN card for Fabric OS earlier than v4.1.0, you must
power down the switch. Do not remove the WWN card until you have received the
replacement card. Do not restart the switch with a failed or missing WWN card.
Note: You must consult with Technical Support before you replace the WWN card.
Verifying if the WWN needs replacing
Ensure that the current card is firmly seated when you perform troubleshooting
steps.
Any of the following events might indicate that the WWN card needs to be replaced:
v Visible mechanical damage to the WWN card
v
Any of the Status LEDs on the WWN card do not reflect the actual status of the
components
v
Problems viewing or modifying the data that is stored on the WWN (see “Data
that is stored on the WWN card” on page 82)
RS-232RS-232
RS-232
Link
10/100 Mb/s
Link
10/100 Mb/s
Link
10/100 Mb/s
Link
10/100 Mb/s
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Cable Management Tray
Figure 43. 2109 Model M12 with the cable management tray
Chapter 6. Servicing the M12
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