Does an LSI OEM SAS2308 9217-8i support a 10Tb HDD ?

Discussion in 'RAID Controllers and Host Bus Adapters' started by MarkMarques, Sep 6, 2018.

  1. MarkMarques

    MarkMarques New Member

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    In a nutshell : I have a supermicro X8DT3-LN4F sever and the original LSI SAS RAID PCI expander apparently does not support a 10TB HDD . Got a AOC-USAS2-L8A-ISO18 without any sucess ..

    So I am now to figure that I have to get another PCI HBA ...
    Thinking about an LSI 9217-8i with the SAS2308 chipset , is it viable ?
     
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  2. BLinux

    BLinux Well-Known Member

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    The X8DT3-LN4F has an old SAS-1 RAID controller based on Broadcom SAS1068E, so it is limited to 2TB HDDs. The AOC-USAS2-L8A however is based on LSI SAS2008 chipset which does support SAS-2 (6Gbps) and should support larger HDDs. I've used 8TB HDDs with SAS2008 controllers many times.

    the SAS2308 is an improved version of the SAS2008, supporting PCI-E 3.0 and being a little faster and able to handle more IOPS. it is also a SAS-2 controller like the SAS2008, so it should support large HDDs. However, in your X8DT3 board, the PCI-E 3.0 is not going to benefit you and it will just fallback to PCI-E 2.0 link speeds. Make sure to install it in an electrical x8 lane PCI-E slot though...

    I don't know why you had issues with the AOC-USAS2-L8A. Maybe you should elaborate on that. Your problem might not be the SAS-2 controller, but rather your HDDs. I've seen Seagate SAS-3 HDDs that don't fallback to SAS-2 as they should so they don't get recognized properly by the controller. This is a problem with Seagate SAS-3 HDDs only, not the controller.
     
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  3. JSchuricht

    JSchuricht Active Member

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    You could also be running into a format issue. A 512e drive should on the sas2 card work while a 4kn needs a newer controller.
     
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  4. EffrafaxOfWug

    EffrafaxOfWug Radioactive Member

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    Do you have any further info on that? I don't have any 4kn drives myself but I've not heard of this limitation before, and the compatibility matrix for the SAS2008 chips I've looked at include 512, 512e and 4k drives in the list.
     
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  5. K D

    K D Well-Known Member

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    I am running 4kn native hgst drives off an m1015 without issues.
     
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  6. MarkMarques

    MarkMarques New Member

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    As indicated in the tread none of the PCI expanders identify the HDD ...
    (brand new sealed Seagate 4kn 10Tb )

    The AOC-USAS2-L8A SAS2 Controller simply ignores the HDD ...
    The SAS1 model takes about 120s ( complete time for initi ) then blocks at boot, reporting something incorrect during initialization phase...

    Being my first home server experience I do not need the latest speed or tech , just volume ...

    Nonetheless , a dumb question : how do I know which are the 8x PCI lanes ?
     
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    Last edited: Sep 7, 2018
  7. nthu9280

    nthu9280 Active Member

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    Did you check if it's due to the power disable feature of the newer drives? You may have to tape 1-3 pins or use molex 4 pin to SATA power cable to rule that out. Molex does not have 3.3v.
     
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  8. MarkMarques

    MarkMarques New Member

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    In the X8DT3-LN-4F server I have a 12 HDD backplane | frontplane where 11 Bays are at the moment empty and one of them have the BBU for the original SAS1 RAid controller.
    The backplane is power supplied by 2 molex plugs, all the 11 SAS plugs belong to the backplane and have the conventional SAS | SATA integrated interface aggregated into a 8087 connector going to the PCI Controller.

    So, @nthu9280 , which pins are you talking about ?
    The HDD model is the ST10000VN0004 , SATA AF .
     
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  9. nthu9280

    nthu9280 Active Member

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    Is this a Supermicro chassis?
    What backplane do you have ? Bpn-sas???. If it is SAS1 expander, it could contributing the issue of compatibility with the larger drive. I don't have expander BPN so not 100% sure.

    Check your HDD specs & Googleon SAS3/SATA3 power disable and there are plenty of instructions on how to tape sata power pins 1-3.
     
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  10. BLinux

    BLinux Well-Known Member

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    @MarkMarques As I mentioned above, and @nthu9280 mentions, your issue might not have to do with your controller, but rather your HDDs or backplane.

    I've had a lot of problems with Seagate HDDs, brand new or not; and it's not just about reliability. Like I said, there SAS-3 HDDs won't work with SAS-2 when it should.

    Let's start with the model of your backplane. If it is SAS1, then that might be an issue. If you have the cables to directly wire from the HBA to your HDDs directly, try that and by-pass the backplane.

    @nthu9280 makes a good point about the "power disable". If these drives meet the SATA 3.3 spec, they will have this feature. Although, in my experience, most backplanes do not supply 3.3V, but maybe yours does? You can block the power disable feature with some tape; i have a video i posted about this and show what you need to do:



    Try that on 1 HDD and see if it spins up.
     
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  11. MarkMarques

    MarkMarques New Member

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    At the moment I am still waiting for a SAS2308 ( LSI 9217-4i) controller.

    Nonetheless, what I have is a BPN-826A backplane which I suppose doing simple HDD aggregation ( or at least I hope ) ...

    The previous "reply" is probably what is happening to me ( power disable pin issue), as I even tried ( without success ) accessing the 10TB from a simple external HDD case ...
    Until I receive the new SAS2308 controller I will keep the HDD offline ...
    Thanks for all the info ...
     
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  12. BLinux

    BLinux Well-Known Member

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    that might not be power disable then... AFAIK, the BPN-SAS-826A backplane does NOT supply 3.3V so should not have issues with "power disable" HDDs. you can tell, because the backplane is driven by a few molex connectors, which do not have a 3.3V power source.
     
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