On Oct 3, 2013, at 2:36 PM, David Leach wrote: > Can someone explain why the ATA command Identify Device (0xEC) has the > following test in the switch statement: > > case 0xec: // identify device > if (p->sectors != 1 || ndp < 512) > return -1; > > > Given that the ATA spec says that the sector register is N/A (as are pretty > much all the rest) when making this command I don't know why the blade server > requires that submission of this command have AoE ATA command set sector to 1? > > I have my suspicions but I would like to hear from others...
What are your suspicions? Looking at ATA 6 draft rev. 3b section 18.5 I see also see that sector count is NA on input. -- Ed Cashin ecas...@coraid.com ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk _______________________________________________ Aoetools-discuss mailing list Aoetools-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/aoetools-discuss
