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Re: sata driver compataility Q

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On 9/15/23 12:28, gene heskett wrote:
> Greetings all;
> 
> I've just ordered some stuff to rebuild or expand my Raid setup.
> This 16 port sata-III pci-e card:
> <https://www.amazon.com/dp/B09L184W57?smid=A2H818KAC5I4D1&ref_=chk_typ_imgToDp&th=1>
> along with a bigger drive cage, cables and such and some gigastone 2T 
> drives to make a raid big enough to run amanda. And maybe put a new card 
> in front of my 2T /home raid10.
> 
> The card claims linux compatibility.
> 
> Can anyone advise me on the gotcha's of such a 16 port beast?
> 
> Thanks all.
> 
> Cheers, Gene Heskett.


Searching Amazon for "gigastone 2T", I see:

 
https://www.amazon.com/Gigastone-Internal-Compatible-Desktop-Laptop/dp/B0BN5978X1

     540 MB per second


PCIe 3.0 x1 is rated for 985 MB/s.

     https://en.wikipedia.org/wiki/Pcie


So, the PCIe 3.0 x1 connector is going to be a bottleneck when accessing 
more than one SSD.


I suggest that you pick an HBA with a wider PCIe connector -- PCIe 3.0 
x8 (7.88 GB/s) is a reasonable match for sixteen SSD's (8.64 GB/s). 
PCIe 3.0 x16 would eliminate the PCIe bottleneck.


Is everything going into one chassis?  Have you considered an external 
drive chassis?


Make sure your power supply(s) are adequate to the task.


David

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Thread

sata driver compataility Q gene heskett <gheskett@shentel.net> - 2023-09-15 21:30 +0200
  Re: sata driver compataility Q David Christensen <dpchrist@holgerdanske.com> - 2023-09-15 23:40 +0200
    Re: sata driver compataility Q gene heskett <gheskett@shentel.net> - 2023-09-16 00:10 +0200
      Re: sata driver compataility Q David Christensen <dpchrist@holgerdanske.com> - 2023-09-16 02:20 +0200
        Re: sata driver compataility Q gene heskett <gheskett@shentel.net> - 2023-09-16 04:40 +0200
          Re: sata driver compataility Q David Christensen <dpchrist@holgerdanske.com> - 2023-09-17 01:50 +0200
            Re: sata driver compataility Q gene heskett <gheskett@shentel.net> - 2023-09-17 12:30 +0200
              Re: sata driver compataility Q "Andrew M.A. Cater" <amacater@einval.com> - 2023-09-17 22:10 +0200
              Re: sata driver compataility Q David Christensen <dpchrist@holgerdanske.com> - 2023-09-18 00:00 +0200
                Re: sata driver compataility Q gene heskett <gheskett@shentel.net> - 2023-09-18 03:20 +0200
                Re: sata driver compataility Q David Christensen <dpchrist@holgerdanske.com> - 2023-09-18 09:40 +0200

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