On Wed, 1 Jul 2015 19:27:11 +0100 Another Sillyname <anothersname@xxxxxxxxxxxxxx> wrote: > I'm looking at an Asus Maximus Vii Gene motherboard which has 8 SATA > controller connectors.....6 Intel and 2 other (can't remember at the > moment). > > Are there any projected issues or concerns about making a 8 Drive > RAID6 array where I'm using mixed controllers? Mixing controllers in general -- no issue whatsoever, that's the beauty of the (Linux) software RAID. In cases like yours, there could be a minor performance hit if the additional 2-port controller gets fed only a single-lane of PCI-E 1.0. If so, this will cap the total throughput of both ports combined to less than 250 MB/sec. However on the motherboard that you specified that controller is ASMedia ASM1061 which supports PCI-E 1x 2.0. And if the chipset really provides a 2.0 port to it (not an expert in Intel chipsets, check the datasheets), then the cap would be 500 MB/sec, which should be more than enough for two regular spinning hard drives. In any case, typically with RAID6 setups like these getting the highest possible sequential read/write performance isn't on top of the priorities list, so the above may not even be a concern for you. -- With respect, Roman
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