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PRIMECLUSTER Global File Services Configuration and Administration Guide 4.5
FUJITSU Software

2.1.1 Super block

Super block contains a file system type, creation and update dates, label data, size and layout of the file system, and a data history of empty areas.

The copy of super block at the end of the file system exists to allow continuous processing if a disk device block failure occurs in the area where the super block is stored.