Mikael Abrahamsson <swmike@xxxxxxxxx> writes: > On Tue, 2 Feb 2010, Greg Freemyer wrote: > >> (I think these drives may already be available at least as >> engineering samples. Basic linux kernel support went in summer 2009 >> I believe. I believe 2.6.33 will be the first kernel to have been >> tested with these new class of drives.) > > I purchased two WD20EARS drives yesterday, going to play around with > them tonight. They emulate 512 bytes sectors to the SATA layer but > write them as 4k on drive, so you want to make sure that everything > that writes to the drive, writes in 4k block size (which is the case > with most in linux as far as I have understood). > > So basically they'll work with any OS, but for best performance you > need to make sure that things are aligned to 4k boundary and you want > to write 4k at a time. Make sure that your partitions are aligned then. Older partitioners will start the first partition on block 63, meaning 32.5KiB into the disk. MfG Goswin -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html