# [OmniOS-discuss] PCI-e x8 only running x4

Michael Rasmussen mir at miras.org
Mon Jan 23 22:13:18 UTC 2017

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    Hi all,

    I have a problem with a LSI 1068E HBA which supposedly should be
    capable of exhausting all 8 lanes in a x8 slot but it seems not to use
    more than 4 lanes:

    06:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1068E PCI-Express Fusion-MPT SAS (rev 08)
                    LnkCap: Port #0, Speed 2.5GT/s, Width x8, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
                    LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-

    MB: SuperMicro X10SLL-F

    Currently only disks (SATA disks through SATA break-out cabel) connected
    to one channel so is it therefore it only uses 4 lanes currently?

    --
    Hilsen/Regards
    Michael Rasmussen

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