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"performance is not optimal for Samsung M.2 NVMe SSD on Controller" error on AFF A800

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Applies to

  • AFF A800
  • ONTAP 9

Issue

After reviewing pcie.stealth.link.errors pcie_link_error reporting in EMS log a very specific error referencing the Samsung M.2 NVMe SSD is observed:

Thu Jan 13 01:06:22 -0600 [cluster1-01: PCI Link: pcie.stealth.link.errors:debug]: params: {'pcie_link_errors': 'performance is not optimal for Samsung M.2 NVMe SSD on Controller. Dv[a804](4,0,0): LinkCap(MaxLkSp(3),MaxLkWd(4),ASPM(0),L0(7),L1(4),DLAct,Port(13)), LinkCap(MaxLkSp(3),MaxLkWd(4),ASPM(0),L0(7),L1(6),Port(0)), LinkStatus(LkSp(1),LkWd(4),SClk,DLAct). '}

 

 

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