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

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Visibility:: Public

Votes:: 1

Category:: fas-systems

Specialty:: hw

Last Updated:

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