Due to my rack being 23" I'm looking for a short depth ATX case. I've found the istarusa cases. They are definitely more expensive then I was hoping. There are two models of the same case. One with 6 Gb/s backplane and one with 12 Gb/s backplane. If I'm using Red Pro 10 TB drives, I believe that they won't saturate a 6 Gb/s backplane let alone a 12 Gb/s. Am I right? Should I just go with the 6 Gb/s or wait for the 12 to be released. I need a slim optical drive case so this works perfectly. 

 

http://www.istarusa.com/en/istarusa/products.php?model=M-4160-ATX

http://www.istarusa.com/en/istarusa/products.php?model=M-4160HD-ATX

 

 

Due to no detail for the product, so I suppose those blackplane have expander.

 

For individual disk, 6Gb sure enough but if all/many disks access at same time, then you need calculate does enough bandwidth from HBA to Expander. So you may need 12Gb product.

 

From product photo, blackplane haven't expander build-in, all just direct connect. So I think not much selling point of 12Gb product, this just SFF8087 / SFF8643 connector different. It really not worth that price.

Edited November 18, 20196 yr by Benson

So I would need something like the LSI SAS9305-24i (PCIe3) to attach the drives. Very expensive!! The need for a short depth case drives up the price. I guess if I got a motherboard with 10 SATA III (allowing for 1 optical drive) and NVMe for a cache drive, I would need a single  LSI 9300-8i. Or if I didn't want to use the motherboard slots (not sure why I wouldn't) use 2 of the 9300-8i. 

 

Just need a MB that also supports p2000 (PCIe 3.0 x16) and Mellanox connect x2 (or x3) SFP+ card along with 2 x PCIe 3.0 x8 for the LSI cards. 

 

Thanks

Two LSI 9211-8i / 9207-8i also ok, cables could be SFF-8087 to SFF-8087 / SFF-8643.

 

22 hours ago, Vitalsignser said:

if I didn't want to use the motherboard slots

To keep tidy, I haven't use it.

Edited November 20, 20196 yr by Benson