Broadcom Brocade X7-8, Installation Manual

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X7-8-Install-IG100 Installation Guide Brocade
®
X7-8 Director Hardware Installation Guide
WWN Card Replacement Task Guide
This section contains a guide to more complete, detailed steps in this section for installing or replacing WWN cards when
the device is running (hot-swap) or must be powered off (cold-swap). References are provided to more detailed WWN
removal and installation steps for further information.
Replacing WWN Cards (Hot-Swap)
Use this procedure to replace WWN cards with system power on. You can use this procedure to replace one WWN card
assembly at a time while power is on. To replace both cards, follow all steps for one card, and then repeat the same steps
to replace the other card assembly.
1. Save settings and system data and order replacement WWN card(s) by following all steps under
Preparing for WWN
Card Replacement .
2. Replace a card by following all steps under Hot-Swap Replacement . Repeat these steps to replace the second WWN
card if necessary.
3. Verify WWN card operation using the steps under Verifying WWN Card Operation .
Replacing WWN Cards (Cold-Swap)
Use this procedure to replace WWN cards with system power off. You can use this procedure to replace one or both
WWN cards.
1. Save settings and system data and order the replacement WWN card by following all steps under
Preparing for WWN
Card Replacement .
2. Replace the card by following all steps under Cold-Swap Replacement .
3. Verify WWN card operation using the steps under Verifying WWN Card Operation .
Time and Items Required for Replacement
If there is a need to replace one or both WWN cards, allow approximately 20 minutes. See Using the wwnrecover Utility
and WWN Card Fault Indicators before replacement.
The following items are needed to replace the WWN cards:
•
Electrostatic discharge (ESD) grounding strap
•
No. 1 Phillips screwdriver
•
Workstation computer
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.
Identical data must be maintained on each WWN card at all times so that if one card fails, the system can use the other
card to provide valid system operation. To maintain data and ensure its integrity, the system audits both WWN cards one
hour after the first system boot-up, every 24 hours after boot-up, and any time a WWN card is inserted to compare the
critical data.
If a data mismatch is detected during the audit, messages in the RASlog will provide a summary of all errors detected
and prompt you through a data recovery process. The data recovery mechanism may vary depending on the error
encountered and the data being compared. Problems such as a mismatch between license IDs cannot be fixed with
wwnrecover , and the output will direct you to call Brocade Technical Support. For other problems, running wwnrecover
can pinpoint the problem and, in some cases, permit you to fix it. Mismatched data can be resolved, and corrupt data can
sometimes be recovered.
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