Hi Adam, On 07/26/2012 10:16 AM, Adam Goryachev wrote: > Hi all, > > I've got a system with the following config that I am trying to improve > performance on. Hopefully you can help guide me in the best direction > please. > > 1 x SSD (OS drive only) > 3 x 2TB WDC WD2003FYYS-02W0B1 > > The three HDD's are configured in a single RAID10 (I configured as > RAID10 to easily support adding additional drives later, I realise/hope > it is currently equivalent to RAID1) > md0 : active raid10 sdb1[0] sdd1[2](S) sdc1[1] > 1953511936 blocks super 1.2 2 near-copies [2/2] [UU] In addition to Stan's comments, you should know that MD raid10 is not reshapeable yet. You cannot use --grow to increase that array's capacity. That feature is in the roadmap, so you can expect it eventually. HTH, Phil -- 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