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About enhanced performance mode

VxFS has mount options that improve performance, such as delaylog.

The delaylog option and enhanced performance

The default VxFS logging mode, mount -o delaylog, increases performance by delaying the logging of some structural changes, but does not provide the equivalent data integrity as the previously described modes. That is because recent changes may be lost during a system failure. This option provides at least the same level of data accuracy that traditional UNIX file systems provide for system failures, along with fast file system recovery. delaylog is the default mount option.