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FAS26xx and FAS27xx controller running in Single-Path HA with no external shelf

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fas-systems
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hw
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Applies to

  • AFF A220, AFF A200, AFF C190, AFF A150, ASA A150
  • FAS2750, FAS2720, FAS2650, FAS2520 

Issue

On systems with integrated SAS storage that have no external disk shelves connected, the admin might notice that the system is operating in Single-Path HA mode when reviewed  in sysconfig -a nodeshell CLI output:
NetApp Release 9.9.1: Sun Jun 13 07:48:38 EDT 2021
	System ID: xxxxxxxxxx (xxxxxxxxxx); partner ID: xxxxxxxxxx(xxxxxxxxxx)
	System Serial Number: xxxxxxxxxxxx (xxxxxxxxxx)
	System Rev: D0
	System Storage Configuration: Single-Path HA
	System ACP Connectivity: Inband Active
	SAS2/SAS3 Mixed Stack Support: all
	All-Flash Optimized: false
	Capacity Optimized: false
	All SAN Array: false
	Backplane Part Number: DS21212
	Backplane Rev: 
	Backplane Serial Number: xxxxxxxxxxxx
	slot 0: System Board 1.5 GHz (System Board XXII D0)
                Model Name:         FAS2720
                Part Number:        111-04333
                Revision:           D0
...

	slot 0: SAS Host Adapter 0a (PMC-Sierra PM8070 rev. C, SAS, <OFFLINE (hard)>)
		Firmware rev:       03.08.09.00
		Base WWN:           5:00a098:00e8102:b0
		Temperature:        Not Available
		Phy State:          [0] Disabled
		                    [1] Disabled
		                    [2] Disabled
		                    [3] Disabled
		Mini-SAS HD Vendor:        not available
		Mini-SAS HD Part Number:   not available
		Mini-SAS HD Type:          not available
		Mini-SAS HD Serial Number: not available
	slot 0: SAS Host Adapter 0b (PMC-Sierra PM8070 rev. C, SAS, <UP>)
		Firmware rev:       03.08.09.00
		Base WWN:           5:00a098:00e8102:b4
		Temperature:        Not Available
		Phy State:          [4] Enabled, 12.0 Gb/s
		                    [5] Enabled, 12.0 Gb/s
		                    [6] Enabled, 12.0 Gb/s
		                    [7] Enabled, 12.0 Gb/s
		00.0 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.1 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.2 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.3 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.4 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.5 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.6 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.7 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.8 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.9 : NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.10: NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		00.11: NETAPP   X318_SCMNE08TA07 NA00 7486.1GB 520B/sect (xxxxxxxx)
		Shelf 0: DS212-12  Firmware rev. IOM12E A: 0230  IOM12E B: 0230

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