raid card that supports 30 drives

I have a Q30 pod and I need to buy a new RAID card.  The card I have in there now does not do raid, so I have to configure the raid via windows.
https://www.45drives.com/products/storinator-nas-q30-configurations.php

Does anyone know of a good raid card that supports 30 HD's, sata, that is able to configure the raid, volume, etc... from the card?
I'm have configured the raid via windows storage spaces, but it's to slow.

I'm planning to use the WD 6TB gold drives in it.
DanNetwork EngineerAsked:
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Cliff GaliherCommented:
If storage spaces is slow  I don't think a RAID card will solve your problem. The overhead of storage spaces is not particularly significant. You usually want to split drives across multiple cards at that size anyways. You might want to rethink your architecture.
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DanNetwork EngineerAuthor Commented:
Got it, here's my dilemma.  Primarily, this is a backup server, so I'll be backing up my servers and workstations to it.
If I create 2 volumes, one for servers and one for workstations, my issue is that the servers will require more space than the workstations,
so by having it all in one volume, I can give the servers as much space as I have.  Not sure if that makes sense.
If I create two volumes, I'll have 2 vol's with 15 drives each.  With raid6, it will make that 13 usable drives.  So that will limit my backups to around 70-75 TB, as with my workstations, I don't need as much storage.  

Do you have any other recommendations?
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Cliff GaliherCommented:
Why do the volumes need to be even? If servers need more space, do 20/10 or 18/12. And if these are backups, why is speed an issue? With that many spindles, whether raid or Storage Spaces, you'll reach a point of saturating your NIC or PCI bus unless you are really architecting around that., and from what you've shared that isn't the case.
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DanNetwork EngineerAuthor Commented:
I have a 10GB NIC, so I'm good on the network side.  I don't think I'll reach the 6GB/s for on the bus side.
I didn't realize, you're right, I can make the volumes what ever side I want, for some reason, I was under the impression, I had to make them equal.  
So what card do you recommend that supports up to 20 drives,  that does the raid on the card, instead of using windows storage spaces?
I'll probably use 18 or 20 drives for the servers volume.
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andyalderSaggar maker's framemakerCommented:
Most SAS RAID cards support 30 drives if you have a SAS expander on the backplane. The specs on your box say dual cards though, so are there two backplanes?
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Cliff GaliherCommented:
Don't confuse GB and Gb.  There is a reason larger arrays use a SAS fabric or higher speed NICs coupled with technologies like RDMA. Enough spindles can saturate an uplink and those are often the bottlenecks. At which point, dedicated SAN is almost a necessity.  Building out a frankenSAN tends to end badly.

With that said, I'd you are intent on pushing forward, any decent RAID card should do what you need. Even the lowest end current MegaRAID  from Lsi supports 128 drives.
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andyalderSaggar maker's framemakerCommented:
Unfortunately no expander on backplane by the looks of the HBA/RAID card options when you try to configure it on their site.
MegaRAID SAS 9365-28i probably the only card you could use if you want all disks on one card. (you would lose two disks unless the boot drives are separate and counted in the 30 that the box is meant to hold).
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DanNetwork EngineerAuthor Commented:
thanks guys, I'll just go with the megaraid card you mentioned, it supports 28 drives, so I'll just use 28 drives and be done with it.
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andyalderSaggar maker's framemakerCommented:
Oops, may lose another one. Looks like 2 rows of 15 disks, can't see the backplanes but suspect 4 X 4-way connectors on each. Card has 7 X 4-lane connectors so one backplane would have just 3 out of the 4 connectors so only 12 disks on that one and 15 on the other. Would be an expensive tangle of cables to re-route the one unused lane from one backplane to the other.

Bear in mind I haven't actually seen the box and don't know if the internal cables provided are correct, you might have to spend a couple hundred bucks at scsi4me.com getting the right cables.
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DanNetwork EngineerAuthor Commented:
thanks for catching that, here's the board I have
board
So are you saying I can't connect 28 disks to the raid card?
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andyalderSaggar maker's framemakerCommented:
It;s not your motherboard but the boards the disks are plugged into and the cables. The card I suggested has 12Gb connectors and you have 6Gb connectors currently and convertor cables cost about $30 each, you would need 7 of them to connect 27 drives so about $200 on top of the price of the card.
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