Reviewing the Lightbits Storage Cluster Connection Details

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The following table lists the required details you need to use for the nvme connect command on your application server. You can retrieve this information using the nvme connect command or an lbcli command.

Required Lightbits Storage Cluster Connection Details

Item

Description

NVMe Connect Command Parameter

lbcli Command

Subsystem NQN

The Lightbits cluster that was used to create the volume.

-n

lbcli get cluster

Data NIC IP addresses

The Lightbits data NIC IP addresses for all of the cluster nodes.

-a

lbcli list nodes

TCP ports

The TCP ports used by the Lightbits cluster nodes.

-s

lbcli list nodes

ACL string

The ACL used when you created the volume on the Lightbits storage cluster.

-q

lbcli list volumes

Obtaining the Lightbits Cluster Subsystem NQN

On any Lightbits server, enter the lbcli get cluster command.

Sample Command

$ lbcli get cluster
Note

A -J flag after lbcli indicates that the JWT is not stored in the lbcli configuration file.

Sample Output

UUID: 442a77f8-7f7a-4ab7-9fce-f1d1612e8b03 currentMaxReplicas: 3 subsystemNQN: nqn.2014-08.org.nvmexpress:NVMf:uuid:70492bf6-92e6-498a-872b-408ceb4d52d8 supportedMaxReplicas: 3

The output includes the subsystem NQN for the Lightbits cluster.

Obtaining the Lightbits Nodes Data IP Addresses and TCP Ports

On any Lightbits server, enter the lbcli list nodes command.

Sample Command

$ lbcli list nodes
Note

A -J flag after lbcli indicates that the JWT is not stored in the lbcli configuration file.

Sample Output

NAME UUID State NVME-Endpoint server00-0 192af7c0-d39f-4872-b849-7eb3dc0f7b53 Active 10.23.26.13:4420 server01-0 1f4ef0ce-0634-47c7-9e5f-d4fd910ff376 Active 10.23.26.8:4420 server02-0 6d9b8337-18cd-4b14-bea1-f56aca213d68 Active 10.23.26.4:4420 server03-0 912736af-bbc5-45c5-ba22-901eea9f9fde Active 10.23.26.29:4420 server04-0 dc3ee1b5-0625-4a4c-b627-76fbd66db74c Active 10.23.26.7:4420 server05-0 e157c1a2-701b-403b-bb73-e0c1f4be0096 Active 10.23.26.5:4420

The output’s NVME-Endpoint includes the data NIC IP addresses and TCP ports for all of the Lightbits cluster’s nodes.

Obtaining the Volume ACL String

The ACL string is the ACL you used when you created the volume on the Lightbits storage cluster.

You can also review the list of existing volumes and their ACLs by executing lbcli list volumes on any of the Lightbits servers.

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