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Cluster and storage switches

Prepare to install NX-OS software and Reference Configuration File

Contributors netapp-jolieg netapp-yvonneo
PDFs

Before you install the NX-OS software and the Reference Configuration File (RCF), follow this procedure.

About the examples

The examples in this procedure use two nodes. These nodes use two 10GbE cluster interconnect ports e0a and e0b.

See the Hardware Universe to verify the correct cluster ports on your platforms.

Note The command outputs might vary depending on different releases of ONTAP.

The examples in this procedure use the following switch and node nomenclature:

  • The names of the two Cisco switches are cs1 and cs2.

  • The node names are cluster1-01 and cluster1-02.

  • The cluster LIF names are cluster1-01_clus1 and cluster1-01_clus2 for cluster1-01 and cluster1-02_clus1 and cluster1-02_clus2 for cluster1-02.

  • The cluster1::*> prompt indicates the name of the cluster.

About this task

The procedure requires the use of both ONTAP commands and Cisco Nexus 3000 Series Switches commands; ONTAP commands are used unless otherwise indicated.

Steps

  1. 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=xh

    where x is the duration of the maintenance window in hours.

    Note The AutoSupport message notifies technical support of this maintenance task so that automatic case creation is suppressed during the maintenance window.

  2. Change the privilege level to advanced, entering y when prompted to continue:

    set -privilege advanced

    The advanced prompt (*>) appears.

  3. Display how many cluster interconnect interfaces are configured in each node for each cluster interconnect switch:

    network device-discovery show -protocol cdp

    Show example 
    cluster1::*> network device-discovery show -protocol cdp

Node/       Local  Discovered
Protocol    Port   Device (LLDP: ChassisID)  Interface         Platform
----------- ------ ------------------------- ----------------- --------
cluster1-02/cdp
            e0a    cs1                       Eth1/2            N3K-C3132Q-V
            e0b    cs2                       Eth1/2            N3K-C3132Q-V
cluster1-01/cdp
            e0a    cs1                       Eth1/1            N3K-C3132Q-V
            e0b    cs2                       Eth1/1            N3K-C3132Q-V

  4. Check the administrative or operational status of each cluster interface.

    1. Display the network port attributes:

      network port show –ipspace Cluster

      Show example 
      cluster1::*> network port show -ipspace Cluster

Node: cluster1-02
                                                  Speed(Mbps) Health
Port      IPspace      Broadcast Domain Link MTU  Admin/Oper  Status
--------- ------------ ---------------- ---- ---- ----------- ------
e0a       Cluster      Cluster          up   9000  auto/10000 healthy
e0b       Cluster      Cluster          up   9000  auto/10000 healthy

Node: cluster1-01
                                                  Speed(Mbps) Health
Port      IPspace      Broadcast Domain Link MTU  Admin/Oper  Status
--------- ------------ ---------------- ---- ---- ----------- ------
e0a       Cluster      Cluster          up   9000  auto/10000 healthy
e0b       Cluster      Cluster          up   9000  auto/10000 healthy

    2. Display information about the LIFs:

      network interface show -vserver Cluster

      Show example 
      cluster1::*> network interface show -vserver Cluster

            Logical            Status     Network            Current       Current Is
Vserver     Interface          Admin/Oper Address/Mask       Node          Port    Home
----------- ------------------ ---------- ------------------ ------------- ------- ----
Cluster
            cluster1-01_clus1  up/up      169.254.209.69/16  cluster1-01   e0a     true
            cluster1-01_clus2  up/up      169.254.49.125/16  cluster1-01   e0b     true
            cluster1-02_clus1  up/up      169.254.47.194/16  cluster1-02   e0a     true
            cluster1-02_clus2  up/up      169.254.19.183/16  cluster1-02   e0b     true

  5. Verify the connectivity of the remote cluster interfaces:

ONTAP 9.9.1 and later

You can use the network interface check cluster-connectivity command to start an accessibility check for cluster connectivity and then display the details:

network interface check cluster-connectivity start and network interface check cluster-connectivity show

cluster1::*> network interface check cluster-connectivity start

NOTE: Wait for a number of seconds before running the show command to display the details.

cluster1::*> network interface check cluster-connectivity show
                                  Source              Destination         Packet
Node   Date                       LIF                 LIF                 Loss
------ -------------------------- ------------------- ------------------- -----------
cluster1-01
       3/5/2022 19:21:18 -06:00   cluster1-01_clus2   cluster1-02_clus1   none
       3/5/2022 19:21:20 -06:00   cluster1-01_clus2   cluster1-02_clus2   none

cluster1-02
       3/5/2022 19:21:18 -06:00   cluster1-02_clus2   cluster1-01_clus1   none
       3/5/2022 19:21:20 -06:00   cluster1-02_clus2   cluster1-01_clus2   none
All ONTAP releases

For all ONTAP releases, you can also use the cluster ping-cluster -node <name> command to check the connectivity:

cluster ping-cluster -node <name>

cluster1::*> cluster ping-cluster -node local
Host is cluster1-02
Getting addresses from network interface table...
Cluster cluster1-01_clus1 169.254.209.69 cluster1-01     e0a
Cluster cluster1-01_clus2 169.254.49.125 cluster1-01     e0b
Cluster cluster1-02_clus1 169.254.47.194 cluster1-02     e0a
Cluster cluster1-02_clus2 169.254.19.183 cluster1-02     e0b
Local = 169.254.47.194 169.254.19.183
Remote = 169.254.209.69 169.254.49.125
Cluster Vserver Id = 4294967293
Ping status:
....
Basic connectivity succeeds on 4 path(s)
Basic connectivity fails on 0 path(s)
................
Detected 9000 byte MTU on 4 path(s):
    Local 169.254.19.183 to Remote 169.254.209.69
    Local 169.254.19.183 to Remote 169.254.49.125
    Local 169.254.47.194 to Remote 169.254.209.69
    Local 169.254.47.194 to Remote 169.254.49.125
Larger than PMTU communication succeeds on 4 path(s)
RPC status:
2 paths up, 0 paths down (tcp check)
2 paths up, 0 paths down (udp check)

  1. Verify that the auto-revert command is enabled on all cluster LIFs:

    network interface show -vserver Cluster -fields auto-revert

    Show example 
    cluster1::*> network interface show -vserver Cluster -fields auto-revert

          Logical
Vserver   Interface           Auto-revert
--------- ------------------- ------------
Cluster
          cluster1-01_clus1   true
          cluster1-01_clus2   true
          cluster1-02_clus1   true
          cluster1-02_clus2   true
What's next?

Install NX-OS software.