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Graphing NVMe status #munin #nvme #backupfriday

🕝︎ - 2024-06-22
Graph showing percentage used from the NVMe in my home server

Recently at work we had some SSDs fail - a colleague checked some of them, and the SSDs reported that they had passed 200% of their lifetime!

My home server and my laptop does not see anything near the usage that those production SSDs do, but I would like to have an idea of what the status is and how it is developing - #backupfriday is all well and good, but prevention is nice too.

I started looking at the nvme-cli package and some of what it can output, but wasn't sure what to graph, so I asked on the fediverse, and got a nice reply with a link to the NVMe specification.

So today I installed Munin on my home server, found the nvme plugin and modified it to graph the percentage_used value that I am interested in.

For some reason my three NVMe's report "NVME Namespace Usage" to be 100%, which is not what the plugin expects, so I had to configure it to not warn me about that:

# cat /etc/munin/plugin-conf.d/nvme 
[nvme]
user root
env.nvme_usage_warning 101
env.nvme_usage_critical 101

Now I have Munin graphing percentage_used, and many more things, sweet.

🕝︎ - 2024-06-22 - 0 comments

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