SAS HBA vs. SAS RAID

[kevrags]

I know there is a sticky about this, but it's a couple of years old now, so figured I'd ask again.

Building a hyper-converged FatTwin setup from Supermicro. Initial disks are 4x Micron S630DC 800GB 12Gbs SAS SSDs per node, RAID10. They come with an onboard LSI 3008 12GB/s SAS controller. So, the question is whether or not that is good enough - based on the sticky SW recommends using their Cache vs. RAID onboard - or to go with an LSI 3108 RAID controller.

Thanks,

Kevin

[anton (staff)]

It's possible to use both. NV cache on LSIs and StarWind DRAM with UPS back-end. You'll have to do a lot of testing to make sure you don't have longer I/O path for all I/Os while saving some ms on I/Os in cache.

I know there is a sticky about this, but it's a couple of years old now, so figured I'd ask again.

Building a hyper-converged FatTwin setup from Supermicro. Initial disks are 4x Micron S630DC 800GB 12Gbs SAS SSDs per node, RAID10. They come with an onboard LSI 3008 12GB/s SAS controller. So, the question is whether or not that is good enough - based on the sticky SW recommends using their Cache vs. RAID onboard - or to go with an LSI 3108 RAID controller.

Thanks,

Kevin