Verifying Network Connectivity
Lightbits Cluster Installation Process
| # | Installation Steps |
|---|---|
| 1 | Connecting your installation workstation to Lightbits’ software repository |
| 2 | Verifying the network connectivity of the servers used in the cluster |
| 3 | Setting up an Ansible environment on your installation workstation |
| 4 | Installing a Lightbits cluster by running the Ansible installation playbook |
| 5 | Updating clients (if required) |
| 6 | Provisioning storage, connecting clients, and performing IO tests |
Lightbits recommends that you verify the network connectivity for the servers you plan to use in the Lightbits cluster before you run the Ansible playbook. To simply confirm the connectivity status, use a ping command for each of the management NIC IPs and data NIC IPs in the servers.
Referring back to the Installation Preparation, the example uses three Lightbits servers. Each server has a management IP.
Before proceeding with the installation, enter the following ping command from the Ansible installation host, to confirm that each Lightbits server is accessible via the Management Network IP.
$ ping -c 4 192.168.16.22PING 192.168.16.22 (192.168.16.22) 56(84) bytes of data.64 bytes from 192.168.16.22: icmp_seq=1 ttl=64 time=0.208 ms--- 192.168.16.22 ping statistics ---1 packets transmitted, 1 received, 0% packet loss, time 0msrtt min/avg/max/mdev = 0.208/0.208/0.208/0.000 msContinuing with the example, a ping command is sent to each of the management network IPs and data network IPs.
| Server | Management Network IP | Data Network IP |
|---|---|---|
| Lightbits server00 | ping -c 4 192.168.16.22 | ping -c 4 10.10.10.100 |
| Lightbits server01 | ping -c 4 192.168.16.92 | ping -c 4 10.10.10.101 |
| Lightbits server02 | ping -c 4 192.168.16.32 | ping -c 4 10.10.10.102 |
Before continuing, confirm the following connections:
- The Ansible installation host has ping connectivity to each Lightbits storage server's management network IP. It does not need to have data network connectivity.
- Each Lightbits storage server has connectivity between all of the management network IPs.
- Each Lightbits storage server has connectivity between all of the data network IPs.
- Additionally, review the section on Required Ports for Installation and Operation, and make sure that all of those ports are open and accessible on the Lightbits storage servers.