On 2010-10-12 14:52, Tino Schwarze wrote: > I suppose(!) alignment doesn't matter that much (or at all) for RAID10 > (which is the right choice for DB loads with only few disks). > > But that's just my gut feeling.
My gut thinks your gut is wrong about that. :^) Why would RAID10 be exempt? The PERC is still going to bunch up disk addressing into RAID chunks. If your filesystem blocks aren't aligned with the chunk boundaries, you're going to need two disks to seek to satisfy some read requests, and four disks for some write requests. _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
