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Xsan 2.2: Long DNS names may cause Xsan volume failover

Symptoms

An Xsan volume may failover unexpectedly at the beginning of each hour (when summary statistics are written to the Xsan volume log) if any Xsan client of the volume has a very long DNS name.

Resolution

For each Xsan system's metadata IP address, configure a DNS PTR record (or reverse DNS name) with a maximum length based on the Xsan metadata controller version in use:

  • Xsan 2.2.2 or 2.3: 114 characters
  • Xsan 2.2.1 and earlier: 57 characters

Additional Information

If an Xsan volume continues to failover at other times after shortening all metadata DNS names to the limits shown above, see Troubleshooting Xsan volume failover issues.

Last Modified: Aug 25, 2011
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  • Last Modified: Aug 25, 2011
  • Article: TS3328
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