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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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Flash Cache
This chapter provides an overview of Flash Cache and all of its components.
This chapter includes the following sections:
12.1 About Flash Cache
Flash Cache (previously called PAM II) is a set of solutions that combine software and hardware within IBM N series storage controllers. It increases system performance without increasing the disk drive count. Flash Cache is implemented as software features in Data ONTAP and PCIe-based modules with either 256 GB, 512 GB, or 1 TB ...

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