An incorrect number of adapters is used for the MetroCluster backend connection
Applies to
- ONTAP 9
- FAS/AFF systems
- Fabric-Attached MetroCluster
- Cisco DS-C9148S-K9 switches
Issue
- The following risk is reported in ActiveIQ for a MetroCluster system
An incorrect number of adapters is used for the MetroCluster backend connection.- The disks from some of the shelves do not have 8 paths as expected.
::> storage disk show -fields path-count -path-count !8 -type !LUN
disk path-count
------- ----------
2.20.0 6
.
2.20.23 6
2.21.0 6
.
2.21.23 6
48 entries were displayed.
- The system changes from "quad-path HA" to "multi-path HA" configuration.
::> system node run -node node1 -command sysconfig -a
NetApp Release 9.8P7: Tue Sep 14 14:42:02 EDT 2021
System ID: ######(Node1); partner ID: ######(Node2)
System Serial Number: #######(Node1)
System Rev: A4
System Storage Configuration: Multi-Path HA
- The remote ATTO bridge are missing from both nodes of the local site. However the missing bridge is seen from the remote site.
::> system node run -node node1 -command sysconfig -a
Remote site
FC-to-SAS Bridge:
Site2-FabricS1:1-9.126L0 : ATTO FibreBridge7500N 3.25 FB7500N####82
Site1-FabricS1:1-9.126L0 : ATTO FibreBridge7500N 3.25 FB7500N####70
Site1-FabricS1:1-9.shelf10 : DS224-12 Firmware rev. IOM12 A: 0281 IOM12 B: 0281
Site1-FabricS1:1-9.shelf11 : DS224-12 Firmware rev. IOM12 A: 0281 IOM12 B: 0281
Site2-FabricS1:1-9.shelf20 : DS224-12 Firmware rev. IOM12 A: 0281 IOM12 B: 0281
Site2-FabricS1:1-9.shelf21 : DS224-12 Firmware rev. IOM12 A: 0281 IOM12 B: 0281
Local site
FC-to-SAS Bridge:
Site1-FabricS1:1-9.126L0 : ATTO FibreBridge7500N 3.25 FB7500N####70 >>>> FB7500N####82 missing
Site1-FabricS1:1-9.shelf10 : DS224-12 Firmware rev. IOM12 A: 0281 IOM12 B: 0281
Site1-FabricS1:1-9.shelf11 : DS224-12 Firmware rev. IOM12 A: 0281 IOM12 B: 0281 >>>> Shelves 20 and 21 missing
- On both nodes of the local site, the missing bridges are connected to the same Fabric switch.
- The switch port connected to the missing ATTO bridge is online.
Site2-FabricS1# show interface brief
-----------------------------------------------------------------------------------------
Interface Vsan Admin Admin Status SFP Oper Oper Port Logical
Mode Trunk Mode Speed Channel Type
Mode (Gbps)
-----------------------------------------------------------------------------------------
fc1/8 40 F off up swl F 16 -- edge
fc1/9 40 F off up swl F 16 -- edge
- There are no issues seen with zonning configuration on the switch.