ZFS Storage 7320 initial setup

The Sun ZFS Storage 7320 System consists of either a single storage controller, or two storage controllers in a high availability cluster configuration, and one to four Sun Disk Shelves. The initial setup is done while both heads are in factory default configuration, so basically configure one head with hostname, domain, IP etc and join the second head to cluster.

Each head should have dedicated IP for administrative purpose, this IP (as cluster resource) should be locked to the head, since this IP should not fail over to another head. This is because in case of fail-over, you still want to access a head for management or troubleshoot purpose.

Cluster can be active-passive or active-active. I usually see more of active-active, where both heads own some resources, like shares or LUN.

In this example two heads are SUN FIRE X4170 M2 server and they are running latest software ak/nas@2013.06.05.7.8,1-1.1 (as of July 2017). Each head has two connected NICs as per this diagram.

Head stor2a
NIC0 - stor2a (dedicated hostname, locked IP)
NIC2 - stor2 (service hostname/IP, fail-over so clients use this for NFS mount, in case of active-passive cluster)

      -------------------------
     |   head STOR2A                              
     |
     |          NICs
     |    -----------------
     |    | 0 | 1 | 2 | 3 |
     |    -----------------
     |      |       |
     |------|-------|-----------
            |       |
            |       | 
           \|/     \|/

host/IP: stor2a   stor2
        (locked)

Head stor2b
NIC1 - stor2b (dedicated hostname, locked IP)
NIC2 - stor2 (service hostname/IP, fail-over so clients use this for NFS mount, in case of active-passive cluster)

     -------------------------
     |   head STOR2B
     |
     |          NICs
     |    -----------------
     |    | 0 | 1 | 2 | 3 |
     |    -----------------
     |          |   |
     |------ ---|---|-----------
                |   |
                |   | 
               \|/ \|/

host/IP:    stor2b  stor2
           (locked)

This is from serial console of the first head, at the beginning of configuring head.

Sun ZFS Storage 7320 Configuration
    Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.

    NET-0   NET-1 <=>  NET-2 <=>  NET-3 

    Host Name: stor2a
    DNS Domain: etcfstab.com
    IP Address: 10.211.9.127
    IP Netmask: 255.255.248.0
    Default Router: 10.211.8.1
    DNS Server: 10.10.11.1
  * Password: kosovojesrbija
  * Re-enter Password: kosovojesrbija

    Please enter the required (*) configuration data
    ESC-1: Done   ESC-2: Help   ESC-3: Halt   ESC-4: Reboot   ESC-5: Info
    For help, see http://www.oracle.com/goto/zfs7320/

Configuration is done and you get note how to access the storage.

Sun ZFS Storage 7320 Configuration
Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.

Your new appliance is now ready for configuration.  To configure your
appliance, use a web browser to visit the following link:

        https://stor2a.etcfstab.com:215/

If your network administrator has not yet assigned the network name you chose
for the appliance, you can also configure your appliance using the link:

        https://10.211.9.127:215/

If you are unable to connect to the appliance through your web browser, you
can begin text-mode configuration by logging in as "root" and entering the
administrator password you specified on the previous screen.
For help, see http://www.oracle.com/goto/zfs7320/

While joining second head to cluster, you'll be asked to provide heads hostname and root's password, as the image shows:

On the console of the second head, it will read "Joining cluster ..."

Here is the cluster view on both heads, see resources owned by heads and see the lock image, that's the locked IP you don't want to fail-over.
Here it's shown how three cables for intra cluster communications need to be connected.

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