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Multipath to storage not configured errors and a SAS port is disabled

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Category:
fas-systems
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HW
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Applies to

  • All FAS systems
  • All AFF systems

Issue

  • Issues or loss of communication to disk stack
  • EMS reports the following:
Mon Oct 11 07:58:05 -0600 [node-01: dsa_disc: ses.multipath.ReqError:alert]: SAS disk shelf detected without a multipath configuration.
  • One or both nodes report mixed-path configuration in sysconfig -a
NetApp Release 9.7P9: Thu Nov  5 20:15:56 EST 2020
	System ID: 0XXXXXXXXX (node-01); partner ID: 0XXXXXXXXX (node-02)
	System Serial Number: XXXXXXXXXXXXXX (node-01)
	System Rev: C1
	System Storage Configuration: Mixed-Path
  • There is a SAS port disabled, but has a cable installed 
    slot 2: SAS Host Adapter 2b (PMC-Sierra PM8001 rev. C, SAS, <OFFLINE (soft)>)
	MFG Part Number:    USI 6086-000010-07 rev. MP V4.13
	Part number:        111-00341+G1
	Serial number:      xxxxxxxxxxx
	Date Code:          20150817
	Firmware rev:       01.12.09.00
	Base WWN:           5:00e004:xxxxxxx:xx
	Phy State:          [4] Disabled
	                    [5] Disabled
	                    [6] Disabled
	                    [7] Disabled
	QSFP Vendor:        Amphenol        
	QSFP Part Number:   X6558-R6+A0     
	QSFP Type:          Passive Copper 2m ID:00
	QSFP Serial Number: xxxxxxxxxxxxxx

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