sas pcie card

[joselcl98]

Hello, I had planned to mount a nas with unraid and I was looking for a pcie card for the hard drives, and I am interested in that the card holds as long as possible, do you know of any, that is between $ 200-500? I've seen several that have 4 u2 ports but I don't know if that would be good for me.

[Electronics Wizardy]

How many drives do you want to connect? what speed and type of drives?

 

Do you want a HBA or raid card?

 

How about something like a broadcom 9300-8i?

[joselcl98]

I want to connect as much as possible in a pci-e 3.0 x1, or 4.0, but I think that is already too much, and between HBA or raid card, in theory with unraid it should be HBA I think Linus said, I'm going to do one gigantic nas, if all the discs are together, then better.

 

type and speed, sas or sata 6Gb/s hdd

[joselcl98]

3 hours ago, Electronics Wizardy said:

How many drives do you want to connect? what speed and type of drives?

 

Do you want a HBA or raid card?

 

How about something like a broadcom 9300-8i?

I want to connect as much as possible in a pci-e 3.0 x1, or 4.0, but I think that is already too much, and between HBA or raid card, in theory with unraid it should be HBA I think Linus said, I'm going to do one gigantic nas, if all the discs are together, then better.

 

type and speed, sas or sata 6Gb/s hdd

[NelizMastr]

6 minutes ago, joselcl98 said:

I want to connect as much as possible in a pci-e 3.0 x1, or 4.0, but I think that is already too much, and between HBA or raid card, in theory with unraid it should be HBA I think Linus said, I'm going to do one gigantic nas, if all the discs are together, then better.

 

type and speed, sas or sata 6Gb/s hdd

HBAs and RAID cards often come in x8 or x16 as they need a lot of bandwidth when a lot of drives are connected. A single 1x PCIe 3.0 lane can only service 500MB/s at most, which is a bottleneck if you have 1 SSD or more than 3 harddisks.

[Loki0111]

For a 6Gb/s card I'd look at something like an LSI 9207-8i which you can find cheap on eBay.

 

The 9207-8i is PCIe 3.0 with eight full duplex 6Gb/s lanes for either SAS or SATA.

 

These cards do require a 40mm fan be installed if run outside of a server chassis.

 

This card will not run in a X1 slot though, I've tried it. For a X1 slot you are going to be very limited, likely those super cheap SATA cards off Amazon are your best bet. You will not get 6GB/s off a single X1 slot, its physically not possible.

 

If you are really restricted by PCIe slots and you are using a GPU you can reclaim that X16 GPU slot and get an X1 GPU or a riser that accommodates your existing GPU (it will still be restricted to the single PCIe lane though).

[joselcl98]

2 hours ago, Loki0111 said:

For a 6Gb/s card I'd look at something like an LSI 9207-8i which you can find cheap on eBay.

 

The 9207-8i is PCIe 3.0 with eight full duplex 6Gb/s lanes for either SAS or SATA.

 

These cards do require a 40mm fan be installed if run outside of a server chassis.

 

This card will not run in a X1 slot though, I've tried it. For a X1 slot you are going to be very limited, likely those super cheap SATA cards off Amazon are your best bet. You will not get 6GB/s off a single X1 slot, its physically not possible.

 

If you are really restricted by PCIe slots and you are using a GPU you can reclaim that X16 GPU slot and get an X1 GPU or a riser that accommodates your existing GPU (it will still be restricted to the single PCIe lane though).

I have 2 9272-8i, that I only have 8 hdd but in theory you can put more, but I don't know how, because I'm going at 1GB / s and that's 3.0 x1, I just tried it with a rizer and it was going well, but since my lsi is 3.0 x8, I would like to use it whole or buy one that can use the entire x16, and for the gpu, I have no problem I have 64 lines in total.

[joselcl98]

2 hours ago, NelizMastr said:

HBAs and RAID cards often come in x8 or x16 as they need a lot of bandwidth when a lot of drives are connected. A single 1x PCIe 3.0 lane can only service 500MB/s at most, which is a bottleneck if you have 1 SSD or more than 3 harddisks.

In theory it was not 1GB / s? I have always looked at this table believing that

[Loki0111]

4 hours ago, joselcl98 said:

In theory it was not 1GB / s? I have always looked at this table believing that

In theory. But in practice, no.

 

There is overhead and other inefficiencies. I would not expect better then 600-700MB/s sustained rate from a PCIe 3.0 X1 card. I've tested this with a Marvell SATA X1 card and a X1 NVMe adapter card, both PCIe 3.0.

 

As a note the 9272-8i is a PCIe 2.0 card.

[joselcl98]

9 hours ago, Loki0111 said:

In theory. But in practice, no.

 

There is overhead and other inefficiencies. I would not expect better then 600-700MB/s sustained rate from a PCIe 3.0 X1 card. I've tested this with a Marvell SATA X1 card and a X1 NVMe adapter card, both PCIe 3.0.

 

As a note the 9272-8i is a PCIe 2.0 card.

Yes, I know it is 2.0 but x8, that I should take advantage of it more, but it only has 2 sas connectors and I don't know how you can use more than 8 hhd, that's why I'm looking for one that I can take advantage of 3.0 x16

[Electronics Wizardy]

2 hours ago, joselcl98 said:

Yes, I know it is 2.0 but x8, that I should take advantage of it more, but it only has 2 sas connectors and I don't know how you can use more than 8 hhd, that's why I'm looking for one that I can take advantage of 3.0 x16

You can get a sas expander if you need more hdds.

 

But gen 2 x8 should be fine for a lot of drives, its a 4gB/s link, good for aboout 20+ drives at pretty high usage.

[joselcl98]

38 minutes ago, Electronics Wizardy said:

You can get a sas expander if you need more hdds.

 

But gen 2 x8 should be fine for a lot of drives, its a 4gB/s link, good for aboout 20+ drives at pretty high usage.

Can you tell me any? Is that I am looking and nothing comes out, I am using this cable

 

SFF-8087 internal sas mini sata cable to (4) 29-pin + 15-pin SFF-8482 connectors

[Electronics Wizardy]

2 minutes ago, joselcl98 said:

Can you tell me any? Is that I am looking and nothing comes out, I am using this cable

 

SFF-8087 internal sas mini sata cable to (4) 29-pin + 15-pin SFF-8482 connectors

Here is one, 1 to 6

 

 

But if you want more than 8, id justg et a card like a lsi 9300-16i or simmilar, but they are much more pricey.

[joselcl98]

1 hour ago, Electronics Wizardy said:

Here is one, 1 to 6

 

 

But if you want more than 8, id justg et a card like a lsi 9300-16i or simmilar, but they are much more pricey.

Yes, I've also been looking at the 9201-16I that I say linus in the pc build of the apple youtuber, but there is nothing more than 16?

[Electronics Wizardy]

1 minute ago, joselcl98 said:

Yes, I've also been looking at the 9201-16I that I say linus in the pc build of the apple youtuber, but there is nothing more than 16?

If you want more thn 16 drives, just get a sas expander?

 

What case are you using? most drives with that many bays have a expander as a option built in, so you only need a 8 port card.

[joselcl98]

1 hour ago, Electronics Wizardy said:

If you want more thn 16 drives, just get a sas expander?

 

What case are you using? most drives with that many bays have a expander as a option built in, so you only need a 8 port card.

No, I have the antec that is huge and I already have it almost full, I put an expander in the bays and I have it for 4 discs, I intend to put many, so I will make a structure, because the server boxes are pure noise and I I want the most silent

[joselcl98]

my intention is to use unraid OS, so I think I don't care if it has raid 0 or not

[Electronics Wizardy]

2 minutes ago, joselcl98 said:

my intention is to use unraid OS, so I think I don't care if it has raid 0 or not

From the looks of it, the 16 port cards + the onboard ports should be enough for your use, and get a sas expander if you need more.

[joselcl98]

1 hour ago, Electronics Wizardy said:

From the looks of it, the 16 port cards + the onboard ports should be enough for your use, and get a sas expander if you need more.

yes, i will do that