JFS File System, insight

• The mount point can be changed only offline

• A FS can be extended online

• When a FS is mounted, it hides the contents of the mounting point directory.

• Shells are sensitive to FS Unix rights only, contrary to binaries that take in account the underneath mounting point rights as well (see “C” cwd function)

• A small file will be allocated using smaller blocks that nbpi defines (by fragmenting it into fragment size: property of a FS).

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