If you wish to enable MAC Address take-over on an HACMP cluster, you need a virtual MAC address. You can do a couple of things to make sure you have a unique MAC Address on your network:
- Use the MAC address of an old system, that you know has been destroyed.
- Buy a new network card, use the MAC address, then destroy this card.
- Use a DEADBEEF address: (0xdeadbeef1234). This is a non-existent hardware vendor. You might run into problems with someone else making up a deadbeef address, so use this option with caution.
If you found this useful, here's more on the same topic(s) in our blog:
- Specifying the default gateway on a specific interface
- clstat: Failed retrieving cluster information
- Reservation bit
- Missing disk method in HACMP configuration
- Error in HACMP in LVM
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Interested in learning more?
