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    Chapter 5. File Systems > Capabilities

    Capabilities

    The file system functional diagram shown in Figure 5-1 represents the flow from user applications, through the major kernel subsystems, down to the storage subsystem. The path of a data or metadata disk operation may fall into any of the following:

    1. Raw I/O (/dev/rdsk)

    2. File system I/O

    3. File system ops (mount/umount)

    4. File system direct I/O (cache bypass)

    5. File system I/O

    6. Cache hits (reads)/writeback (writes)

    7. Cache misses (reads)/writethrough (writes)

    8. Physical disk I/O


      

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