NVMe: Difference between revisions
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Example: '''/dev/nvme0n2p3''' | Example: '''/dev/nvme0n2p3''' | ||
Means nvme device 0, namespace 2 partition 3 | Means nvme device 0, namespace 2, partition 3 | ||
The first namespace, '''n1''', will always exist | |||
==Namespaces== | ==Namespaces== | ||
*[https://nvmexpress.org/resource/nvme-namespaces/ nvme namespaces] | |||
*[https://www.drewthorst.com/posts/nvme/namespaces/readme/ Drew Thorstensen - NVME namespaces] | |||
*https://narasimhan-v.github.io/2020/06/12/Managing-NVMe-Namespaces.html | |||
=HOWTO= | =HOWTO= | ||
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===List namespaces=== | ===List namespaces=== | ||
Revision as of 14:06, 23 February 2023
NVM Express
Links
NVMe/TCP
- https://www.networkworld.com/article/3609921/nvme-over-tcp-how-it-supercharges-ssd-storage-using-standard-ip-networks.html
- nvme and tcp
- NVMe over TCP
- https://tekdeeps.com/what-is-nvme-over-tcp-how-to-use/
- https://www.linuxjournal.com/content/data-flash-part-iii-nvme-over-fabrics-using-tcp
Qemu and NVMe
Documentation
NVMe device names
Example: /dev/nvme0n2p3
Means nvme device 0, namespace 2, partition 3 The first namespace, n1, will always exist
Namespaces
- nvme namespaces
- Drew Thorstensen - NVME namespaces
- https://narasimhan-v.github.io/2020/06/12/Managing-NVMe-Namespaces.html
HOWTO
List devices
nvme list
get details
nvme id-ctrl /dev/nvme0
if you want to find for example IP of a device:
nvme list-subsys /dev/nvme2n1
Namespaces
List namespaces
nvme list-ns /dev/nvme1
Show info about namespace
nvme id-ns /dev/nvme1n1
Show number of available namespaces
nvme id-ctrl /dev/nvme1|grep nn
Show total capacity
nvme id-ctrl /dev/nvme1|grep tnvmcap
Show unallocated capacity
nvme id-ctrl /dev/nvme1|grep unvmcap
