Hi, I'm trying to get an answer for something that I've tried asking the manufacturer, but it's hard to get a good idea. I'm looking to buy a server like the 6048R that has 60 spinning disks in a RAID 5 or 10 configuration. The application is a time-series database doing constant sequential writes, and infrequent bursty reads. I would estimate it's about 99% writes and 1% reads. The data I'm looking to write out will probably be around 1-1.5GB/s. The stripe size can be as large as possible since latency is not an issue at all, but performance is. My question is can a server in that configuration keep up with that write rate, and periodic reads using spinning disks, or would I have to use SSDs? With the research I've done I believe it's possible since I've seen the LSI 3108 controller it comes with can do 4-5GB/s in benchmarks. I read some posts by funkywizard a while ago that makes me think it's possible, but confirmation would be nice.
On a different note, can someone explain what this RAID card means by 8 channels at 12Gbps each? Does that mean for a system with 60 drives it would have 7-8 disks on each channel? From an OS perspective, does this look like 8 drives, or does it abstract to 1 and the controller load balances?