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StorageGRID tenants  may experience decreased performance due to FC link issues within SG appliance

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Applies to

  • NetApp StorageGRID Appliance SG5700/SG6000
  • NetApp StorageGRID

Issue

  • StorageGRID tenant accounts report decreased performance 
  • No changes in workload or configuration
  • I/O and multipath errors in kern.log  for one of the nodes: 

    localhost kernel: [11481810] device-mapper: multipath: 253:15: Failing path 8:224.
localhost kernel: [11481814] sd 0:0:0:253: [sdr] tag#1016 FAILED Result: hostbyte=DID_TIME_OUT driverbyte=DRIVER_OK cmd_age=31s
localhost kernel: [11481814] I/O error, dev sdr, sector 6542983032 op 0x0:(READ) flags 0x84700 phys_seg 2 prio class 2

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