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You have a few options: 1. Buy a cheap dual-port gigabit PCIe card. If you don't have a 10gb network (which I'm guessing you don't if you have not come across SFP+ before), then just do this. It is the cheapest option (by far) and you have loads of PCIe lanes and slots available. 2. Buy one or...

Yes, this is exactly what is happening. Drives with power loss protection can ignore fsync commands, as their cache is considered safe. I think many people underestimate how significant the performance hit (and endurance hit too!) an SSD takes when it has to flush its buffer and write through to...

The ZIL is entirely fsync writes, which disable the write cache on drives that do not have power loss protection. On an SSD, this absolutely destroys both performance and disk endurance. As both the 950 and 960 Pro do not have power loss protection, you should expect its performance to be awful...

The problem with a 960 is that they don't have power loss protection, and so sync/write-through writes flush and disable the cache, which totally destroys the drives performance and greatly reduces endurance. A lot of server workloads do these kind of writes. It does ("Enhanced Power Loss Data...