i´m not a good person to implement raid at kernel level, maybe at fuse level neil have more time in this forum than me neilb@xxxxxxx i´m new here =) hihi i will make a new post this is very big... 2011/1/19 Cory Coager <ccoager@xxxxxxxxx>: > On Wed, Jan 19, 2011 at 03:04:09PM -0200, Roberto Spadim wrote: >> check: >> Key Specifications >> >> * 500GB, 320GB and 250GB hard drive capacity options (hard disk >> like, maybe 100mb/s with 7200rpm - it?s you hd disk (/dev/sda in my >> example) ) >> * 7200-RPM spindle speed >> * 4GB SLC NAND solid state memory (SSD like, maybe 300mb/s - >> it?s you ssd cache disk (/dev/sdb in my example) ) >> * 32MB of drive-level cache (is it ddr3? ddr3 is 10000mb/s, maybe >> less, sata is 3gb/s - it?s the linux/computer ram memory) >> * SATA 3Gb/s with Native Command Queuing (3000mb/s) >> >> what this disk do? >> >> operational system write to (hd) and read from (hd) >> >> hd: >> write/read in memory >> if not in memory, read from ssd >> if not in ssd, read from hd >> >> write can be async >> when loser energy, save memory to ssd, 32mb is fast to write, with >> 300mb/s ssd speed you can use a super capacitor and have 1 second of >> life... >> after write to ssd, write to hd > > Sounds about right. Can we make it happen? > -- > 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 > -- Roberto Spadim Spadim Technology / SPAEmpresarial -- 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
