Confirming the Client Connection to Lightbits

To confirm the client connection to Lightbits, perform the following command:

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nvme list-subsys
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Sample Output

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root@rack07-server56:~ nvme list-subsysnvme-subsys0 - NQN=nqn.2016-01.com.lightbitslabs:uuid:66ee2ad7-8602-49ed-9b82-0c85af8da36d\+- nvme0 tcp traddr=172.16.231.70 trsvcid=4420 live+- nvme1 tcp traddr=172.16.231.71 trsvcid=4420 live+- nvme2 tcp traddr=172.16.231.72 trsvcid=4420 live
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Next, review your connected block devices to see the newly connected NVMe/TCP block device, using the Linux lsblk command:

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lsblk
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Sample Output

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root@rack07-server56:~ lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTnvme0n1 259:1 0 25G 0 disk /snapshot/tmpnvme0n2 259:3 0 25G 0 disksda 8:0 0 223.6G 0 disk|-sda2 8:2 0 1G 0 part /boot|-sda3 8:3 0 222.6G 0 part| |-inaugurator--v2-osmosis--cache 253:1 0 30G 0 lvm| |-inaugurator--v2-root 253:2 0 147.7G 0 lvm /| `-inaugurator--v2-swap 253:0 0 8G 0 lvm [SWAP]`-sda1
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A new nvme0n1 block device with 200GB of storage is identified and available.

To determine which node in the cluster is the primary and which is secondary for this block device, enter the nvme list-subsys command with the block device name.

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nvme list-subsys $DEVICE_PATH
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Sample Output

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root@rack07-server56:~ nvme list-subsys /dev/nvme0n1nvme-subsys0 - NQN=nqn.2016-01.com.lightbitslabs:uuid:66ee2ad7-8602-49ed-9b82-0c85af8da36d\+- nvme0 tcp traddr=172.16.231.70 trsvcid=4420 live optimized+- nvme1 tcp traddr=172.16.231.71 trsvcid=4420 live+- nvme2 tcp traddr=172.16.231.72 trsvcid=4420 live
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