WWN Cards

This topic provides the following information:

WWN card overview
Precautions specific to WWN cards
WWN card fault indicators
WWN card replacement task guide
Time and items required for replacement
Using the wwnrecover utility
Preparing for WWN card replacement
Hot-swap replacement
Cold-swap replacement
Removing the WWN card and bezel
Configuring airflow direction on WWN cards
Verifying WWN card operation

WWN card overview
Precautions specific to WWN cards
WWN card fault indicators
WWN card replacement task guide
Time and items required for replacement
Using the wwnrecover utility
The wwnrecover utility permits a recovery of WWN card data in the event of corruption. Recovery is not possible if hardware issues prevent access to either WWN card or if the primary and backup copy of the license ID on either card is corrupted.
Preparing for WWN card replacement
Hot-swap replacement
You may replace one WWN card assembly at a time with the system powered on using the following steps to avoid interruption of system operation.
Cold-swap replacement
Removing the WWN card and bezel
Configuring airflow direction on WWN cards
Verifying WWN card operation

Parent topic: IBM Storage Networking SAN256B-6