File System Hinting
File system hinting establishes a handshaking protocol with Nytro MegaRAID FW to pin file system blocks in Nytro Cache drive group as hot data; this helps reduce the latency when accessing frequently accessed data.
You can enable or disable this feature by using the MegaCLI and StorCLI utilities (refer to the LSI Nytro MegaRAID Application Acceleration Card Software User Guide).
For information about configuring the file system hinting, see the Configuring File System Hinting section in the LSI Nytro MegaRAID Application Acceleration Card Software User Guide.
NOTE Disable hinting for an VD before you reformat it.
Hinting is not supported on VDs created from Nytro Cache drives; because Nytro MegaRAID does not support caching for VDs created out of SSDs, File System Hinting feature is not supported on those VDs.
NOTE By default, file system hinting is disabled.
CAUTION Before you modify the layout or type of the file system (for example, resizing of the file system), always disable the File System Hinting capability for the VD on which the file system resides. Enable the File System Hinting capability on the VD after the operation is complete.