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IBM System Storage N series Hardware Guide by Marco Schwarz, Tom Provost, Steven Pemberton, Dirk Peitzmann, Jeff Lin, Roland Tretau

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Core technologies
This chapter addresses N series core technologies such as the WAFL file system, disk structures, and NVRAM access methods.
This chapter includes the following sections:
11.1 Write Anywhere File Layout (WALF)
Write Anywhere File Layout (WAFL) is the N series file system. At the core of Data ONTAP is WAFL, N series proprietary software that manages the placement and protection of storage ...

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