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Thu, Feb. 22nd, 2007, 11:28 am
katerinka_l: NV cache feature

Hi to all!

I have some question regarding NV cache feature, which was recently added to ATA-8 and SATA protocols. Motivation for this was Windows Vista. Already exist hybrid HDDs, which support this feature.
My question is what is a trigger for sending NV cache commands from host to device?
From what I saw via analyzer, when Vista is coming up, host sends remove LBAs command for all the LBAs in NV cache pinned set, and then add LBAs command of 1 sector data, where all the data are zeros.

Please, help.
Thanks in advance