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Replace a Cisco Nexus 9336C-FX2 storage switch
Contributors
You must be aware of certain configuration information, port connections and cabling requirements when you replace Cisco Nexus 9336C-FX2 storage switches.
You must verify that the following conditions exist before installing the NX-OS software and RCFs on a Cisco Nexus 9336C-FX2 storage switch:
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Your system can support Cisco Nexus 9336C-FX2 storage switches.
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You must have consulted the switch compatibility table on the Cisco Ethernet Switch page for the supported ONTAP, NX-OS, and RCF versions.
You should be aware that there can be dependencies between command syntax in the RCF and NX-OS versions. -
You must have referred to the appropriate software and upgrade guides available on the Cisco web site for complete documentation on the Cisco switch upgrade and downgrade procedures. Cisco Nexus 3000 Series Switches
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You must have downloaded the applicable RCFs.
The existing network configuration must have the following characteristics:
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The Cisco Ethernet Switches page has the latest RCF and NX-OS versions on your switches.
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Management connectivity must exist on both switches.
Make sure that all troubleshooting steps have been completed to confirm that your switch needs replacing. The replacement Cisco Nexus 9336C-FX2 switch must have the following characteristics:
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Management network connectivity must be functional.
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Console access to the replacement switch must be in place.
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The appropriate RCF and NX-OS operating system image must be loaded onto the switch.
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Initial customization of the switch must be complete.
Procedure summary
This procedure replaces the second Nexus 9336C-FX2 storage switch S2 with the new 9336C-FX2 switch NS2. The two nodes are node1 and node2.
Steps to complete:
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Confirm the switch to be replaced is S2.
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Disconnect the cables from switch S2.
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Reconnect the cables to switch NS2.
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Verify all device configurations on switch NS2.
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If AutoSupport is enabled on this cluster, suppress automatic case creation by invoking an AutoSupport message:
system node autosupport invoke -node * -type all - message MAINT=xhx is the duration of the maintenance window in hours.
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Check on the health status of the storage node ports to make sure that there is connection to storage switch S1:
storage port show -port-type ENETstorage::*> storage port show -port-type ENET Speed VLAN Node Port Type Mode (Gb/s) State Status ID -------------- ---- ----- ------- ------ -------- --------- ---- node1 e3a ENET storage 100 enabled online 30 e3b ENET storage 0 enabled offline 30 e7a ENET storage 0 enabled offline 30 e7b ENET storage 0 enabled offline 30 node2 e3a ENET storage 100 enabled online 30 e3b ENET storage 0 enabled offline 30 e7a ENET storage 0 enabled offline 30 e7b ENET storage 0 enabled offline 30 storage::*> -
Verify that storage switch S1 is available:
network device-discovery showstorage::*> network device-discovery show Node/ Local Discovered Protocol Port Device (LLDP: ChassisID) Interface Platform -------- ---- ----------------------- --------- --------- node1/cdp e3a S1 Ethernet1/1 NX9336C e4a node2 e4a AFF-A700 e4e node2 e4e AFF-A700 node1/lldp e3a S1 Ethernet1/1 - e4a node2 e4a - e4e node2 e4e - node2/cdp e3a S1 Ethernet1/2 NX9336C e4a node1 e4a AFF-A700 e4e node1 e4e AFF-A700 node2/lldp e3a S1 Ethernet1/2 - e4a node1 e4a - e4e node1 e4e - storage::*> -
Run the show
lldp neighborscommand on the working switch to confirm that you can see both nodes and all shelves:show lldp neighborsS1# show lldp neighbors Capability codes: (R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device (W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other Device ID Local Intf Hold-time Capability Port ID node1 Eth1/1 121 S e3a node2 Eth1/2 121 S e3a SHFGD2008000011 Eth1/5 121 S e0a SHFGD2008000011 Eth1/6 120 S e0a SHFGD2008000022 Eth1/7 120 S e0a SHFGD2008000022 Eth1/8 120 S e0a
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Verify the shelf ports in the storage system:
storage shelf port show -fields remote-device,remote-portstorage::*> storage shelf port show -fields remote-device,remote-port shelf id remote-port remote-device ----- -- ----------- ------------- 3.20 0 Ethernet1/5 S1 3.20 1 - - 3.20 2 Ethernet1/6 S1 3.20 3 - - 3.30 0 Ethernet1/7 S1 3.20 1 - - 3.30 2 Ethernet1/8 S1 3.20 3 - - storage::*>
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Remove all cables attached to storage switch S2.
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Reconnect all cables to the replacement switch NS2.
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Recheck the health status of the storage node ports:
storage port show -port-type ENETstorage::*> storage port show -port-type ENET Speed VLAN Node Port Type Mode (Gb/s) State Status ID ---------------- ---- ----- ------- ------ -------- --------- ---- node1 e3a ENET storage 100 enabled online 30 e3b ENET storage 0 enabled offline 30 e7a ENET storage 0 enabled offline 30 e7b ENET storage 0 enabled offline 30 node2 e3a ENET storage 100 enabled online 30 e3b ENET storage 0 enabled offline 30 e7a ENET storage 0 enabled offline 30 e7b ENET storage 0 enabled offline 30 storage::*> -
Verify that both switches are available:
network device-discovery showstorage::*> network device-discovery show Node/ Local Discovered Protocol Port Device (LLDP: ChassisID) Interface Platform -------- ---- ----------------------- --------- --------- node1/cdp e3a S1 Ethernet1/1 NX9336C e4a node2 e4a AFF-A700 e4e node2 e4e AFF-A700 e7b NS2 Ethernet1/1 NX9336C node1/lldp e3a S1 Ethernet1/1 - e4a node2 e4a - e4e node2 e4e - e7b NS2 Ethernet1/1 - node2/cdp e3a S1 Ethernet1/2 NX9336C e4a node1 e4a AFF-A700 e4e node1 e4e AFF-A700 e7b NS2 Ethernet1/2 NX9336C node2/lldp e3a S1 Ethernet1/2 - e4a node1 e4a - e4e node1 e4e - e7b NS2 Ethernet1/2 - storage::*> -
Verify the shelf ports in the storage system:
storage shelf port show -fields remote-device,remote-portstorage::*> storage shelf port show -fields remote-device,remote-port shelf id remote-port remote-device ----- -- ----------- ------------- 3.20 0 Ethernet1/5 S1 3.20 1 Ethernet1/5 NS2 3.20 2 Ethernet1/6 S1 3.20 3 Ethernet1/6 NS2 3.30 0 Ethernet1/7 S1 3.20 1 Ethernet1/7 NS2 3.30 2 Ethernet1/8 S1 3.20 3 Ethernet1/8 NS2 storage::*>
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If you suppressed automatic case creation, re-enable it by invoking an AutoSupport message:
system node autosupport invoke -node * -type all -message MAINT=END