On Mon, Jul 13, 2015 at 05:14:51PM +0100, Another Sillyname wrote: > I've been testing a test RAID6 setup with a 5970 CPU that has worked fine. > > As this box is almost exclusively going to be a file server I'm > thinking of swapping to a G3258 processor, dual core, not overclocked > and no hyperthreading or turbo features. > > The box may also be used to do transcodes of media files from HD mpeg > to x264 which is pretty CPU intensive...... > > Are there any likely issues with the RAID running on a substantially > slower CPU? I can't seem to find an recent/decent docs suggesting > minimum CPU requirements for MDADM raid configs. you are likely to be I/O bound either on the drives or on the controller card to the bus/cpu. While imperfect, take a look at doing hdparm -t -T /dev/device-name This will give you an idea of what a userland process will see as the performance for cached and non-cached reads. simply: the more you can keep in memory or on fast media the better off you are. - Jared -- Jared Mauch | pgp key available via finger from jared@xxxxxxxxxxxxxxx clue++; | http://puck.nether.net/~jared/ My statements are only mine. -- 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
