I recenty added a PCIe SATA 2 port controller.  Below is the PCI Report. Is that SATA card faster than the 4 built in SATA ports? Should I move my parity drive to it?

 

00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family) SATA IDE Controller (rev 01)

(prog-if 8f (Master SecP SecO PriP PriO))

Subsystem: Intel Corporation Unknown device 4249

Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 19

I/O ports at f0e0 (size=

I/O ports at f0d0 (size=4)

I/O ports at f0c0 (size=

I/O ports at f0b0 (size=4)

I/O ports at f0a0 (size=16)

Capabilities: (70) Power Management version 2

Kernel driver in use: ata_piix

Kernel modules: ata_piix00

 

01:00.0 SATA controller: Unknown device 1b4b:9123 (rev 11)

(prog-if 01 (AHCI 1.0))

Subsystem: Unknown device 1b4b:9123

Flags: bus master, fast devsel, latency 0, IRQ 26

I/O ports at e090 (size=

I/O ports at e080 (size=4)

I/O ports at e070 (size=

I/O ports at e060 (size=4)

I/O ports at e050 (size=16)

Memory at e0620000 (32-bit, non-prefetchable) (size=2K)

Expansion ROM at e0610000 (disabled) (size=64K)

Capabilities: (40) Power Management version 3

Capabilities: (50) Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable+

Capabilities: (70) Express Legacy Endpoint, MSI 00

Kernel driver in use: ahci

Kernel modules: ahci

Typically the order of bus-speeds are onboard, then 16-lane PCI-Express, then 8-lane PCI-Express, then 4-Lane PCI-Express, then 1-Lane PCI-Express, then finally last and least is normal PCI. This assumes you're using current hardware.

 

Though PCI-Express cards might be faster if you have an older motherboard with lesser onboard sata controllers. What is your motherboard? What is your PCI-Express SATA Card? What PCI-Express slot do you have the SATA card plugged into?

That'll be a Sata III PCI-e 2.0 Marvell based controller then.

 

This is a "AHCI compliant" Marvell chipset (88SE9128) so may work but would require some major testing with a data drive before I would even think about trusting a parity drive to it.