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Your box's power supply should provide SATA-power feeds. If you need to use a Y-adaptor cable to split-out power for these extra SATA drives, try to budget for splitting from SATA-power. Otherwise, a Y-cable splitting out from ancient 4-pin-Molex -to- SATA drive power is adequate and cheapest. These are intended for professional and enterprise use. For NAS users, mainly, these are highly recommended. Part of knowing how to add more SATA ports to the motherboard is understanding how the SATA expansion cards work. There are a few essential pointers when looking for the right SATA expansion card.
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Typically, Serial ATA (SATA) connectivity consists of a single drive connected to a single controller port via a single cable. The maximum number of drives in an array is predicated on the controller’s port count. The SATA Port Multiplier (SATA PM) permits a change to that point-to-point relationship via port multiplication technology. Port multipliers allow easy, cost-effective storage expansion and enable the aggregation of the performance of multiple drives as well.Edit: Nope, it actually does not work. I cannot find a reason, why. The ASM1061 supports PM, but does not state if CBS or FBS. Also it does not list any compatible hardware. It works with ASM1093 at least - which the card uses. I also tested, to hook the JMB321 to the one SATA Port, which does not go through the ASM1093 Port Multiplier. It yet does not work at all. I do not know, how to fix this issue. It seems, that the PM market ist crappy as hell. Very limited and totally unpredictable compatibility over all hardware... The SAS SATA expansion cards are the ideal method network-attached storage (NAS) users can utilize when adding SATA ports to their computers. These expansion cards are connected via a special cable known as the SAS to SATA cable. You'll need to pay attention to SAS connection type though since there are many. I mostly see SFF-8484, SFF-8482, and SFF-8087 being used for this. Everything I'm linking to here is SFF-8087. If you don't have a SAS port, you can get a PCIe to SAS adapter (supports up to 7 SATA). Although this is an extra piece vs. going directly from PCIe to SATA, it gives you more flexibility. Example of relatively high performance (1.6 GB/s) using this configuration. Supposedly, the speed for the adapter shown below is 715 MB/s Read (Seq,256K,Q10) for 3 drives (1 HDD + 2 SSDs in RAID HyperDuo (Safe Mode), so SSD is primary access).
I was trying to ask OP if they had success with that JMicron chipset on a bare metal install on TrueNAS core 12. Sorry if v12 was a little ambiguous. It uses only an x1 connecter and conforms to the PCIe v3.0 protocol. Hence, it has a maximum throughput of 985 MB/s– the theoretical max throughput of a single PCIe v3.0 lane. In reality, the throughput rate is lower than this. But for simplicity’s sake, we will take 985 MB/s for this example. These professional SATA expansion cards have excellent upstream and downstream bandwidth and offer hardware RAID controllers. A Serial ATA port multiplier is a unilateral splitting device. While it allows one equipped port to connect up to 15 disks, the bandwidth available is limited to the bandwidth of the link to the controller, as of 2012 [update] 1.5, 3, or 6Gbit/s. [3] While the controller is aware that there are multiple drives connected, the service is transparent to the disks attached. Because they believe they are communicating directly with the controller, any drive that holds to the SATA standard can be connected to a port multiplier. There are two ways port multipliers can be driven:
But, if you have an old motherboard that has a limited number of SATA ports, then you can increase the number of SATA ports on your motherboard. SATA ports are mainly for adding more storage drives to your computer. Most motherboards come with two to six SATA ports.
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