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SATA: What plugs in where?

Last response: in Components
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September 14, 2011 4:30:30 AM

I have some HDDs that will be used as raid5, and a SSD, and a DVD. Unfortunately, there are not enough SATA ports on the mainboard. So I bought a PCIe SATA card (Asrock). Should I plug the SSD into it? Or one of the HDDs of the raid5? Or maybe the DVD? In other words, should I use the PCIe card for the fastest or the slowest stuff?

More about : sata plugs

September 14, 2011 6:39:52 AM

is it just a pcie 1x slot? if so then plug the dvd drive into it, the bandwidth of the slot will bottleneck the data throughput.
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September 14, 2011 12:25:13 PM

So I wonder if instead the SSD should go into the card?
September 14, 2011 5:42:38 PM

Nooooooooo!!
you want your ssd on the fastest available port, in this case its your sata on the mobo,
list your mobo and devices, see if we can get an idea of things to squeeze in there :) 
Moto
September 15, 2011 12:14:34 AM

Oops, sorry if I said something stupid. Glad you are here to correct my faulty thoughts. :) 

Here's the mobo and device list:

Mainboard: Gigabyte GA-MA785GT-UD3H (has 6 SATA2 ports but no SATA3 ports)
SSD: Intel X-25M (SATA2, about 250MB/s max)
HDDs: 6 Western Digital Green WD20EARS (SATA2, each about 100MB/s max)
DVDRW: Sony, 16x, SATA2, not very fast
Expansion card: ASRock SATA3 Card (has 2 SATA3 ports with 6Mb/s, Marvell 88SE9123 chip)
September 15, 2011 1:25:08 AM

Ok, without checking your mobo manual I can't see any issues, it maybe that having a pci slotcard disables/chokes some of your normal sata ports, but with current info, and assuming your right about the card fully supporting 2.01 speeds
Raid drives all off mobo,
Ssd and optical off the card,
You may have issues setting the ssd as boot from the card though, couldn't say for sure, and it may be worth trawling the storage forum section for raid storage set up advice
Moto
September 15, 2011 1:58:20 AM

In fact,checking out your mobo specs on giga's site it wont support raid5, got a raidcard handy?
Moto
September 16, 2011 9:37:19 PM

Motopsychojdn said:
Ok, without checking your mobo manual I can't see any issues, it maybe that having a pci slotcard disables/chokes some of your normal sata ports, but with current info, and assuming your right about the card fully supporting 2.01 speeds
Raid drives all off mobo,
Ssd and optical off the card,
You may have issues setting the ssd as boot from the card though, couldn't say for sure, and it may be worth trawling the storage forum section for raid storage set up advice
Moto

Thanks for checking. I have the manual and it says nothing about a pci slotcard affecting the normal sata ports, so that should not be a problem.

One annoying thing the manual says though is that the PCIe slot shares bandwith with some of the other slots, including the 4x PCIe card that is holding the graphics adapter. (The mobo also has a 16x PCIe slot for a graphics adapter and the 16x slot does not share bandwith with anything, but I cannot use the 16x slot because my CPU cooler is in the way.)
In fact, the manual says: "if a x4 graphics card is inserted then the x1 PCIe slots become unavailable". That sounds like trouble, doesn't it!

I guess I'll try SSD + DVD into the card and all 6 HDDs into the mobo first, see if it works and boots. The card supposedly can boot. If it does not boot or the SSD is slow, I'll move it to the mobo and one of the HDDs to the card.

September 16, 2011 9:39:09 PM

Motopsychojdn said:
In fact,checking out your mobo specs on giga's site it wont support raid5, got a raidcard handy?

You are careful in checking the facts. Thanks. I appreciate. :) 

I plan to use software raid with Linux so I can go without raidcard.
!