# Error: Unable to find agent 'nvmet-subsystem', try specifying its full name

**URL:** <https://forums.linbit.com/t/error-unable-to-find-agent-nvmet-subsystem-try-specifying-its-full-name/245>\
**Category:** General\
**Tags:** drbd\
**Created:** [August 18, 2024, 7:39am UTC](https://forums.linbit.com/t/error-unable-to-find-agent-nvmet-subsystem-try-specifying-its-full-name/245 "2024-08-18T07:39:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![akash](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@akash](https://forums.linbit.com/u/akash)\
**Post date:** [August 18, 2024, 7:39am UTC](https://forums.linbit.com/t/error-unable-to-find-agent-nvmet-subsystem-try-specifying-its-full-name/245/1 "2024-08-18T07:39:55Z")

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Hi,

I am following “NVMe-oF High Availability Clustering Using DRBD and Paceamker on RHEL 9” this guide.  
When i am running the below commands i am getting this error " Unable to find agent ‘nvmet-subsystem’ and nvmet-namespace, try specifying its full name"

Commands:  
pcs -f nvmet\_config resource create p\_nvme-subsystem\_0 nvmet-subsystem   
nqn=linbit-nqn0   
op start timeout=10s interval=0   
op stop timeout=10s interval=0   
op monitor interval=10s timeout=10s

# pcs -f nvmet\_config resource create p\_nvmet-namespace\_0 nvmet-namespace \

nqn=linbit-nqn0 namespace\_id=10 backing\_path=“/dev/drbd0”   
uuid=aea2016e-7ebc-4be3-ba44-789d4cb4d17c   
nguid=a004f44f-a0bb-46d5-bec3-20407700cca1   
op start timeout=10s interval=0   
op stop timeout=10s interval=0   
op monitor interval=10s timeout=10s

Please help

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<div class="post-metadata">

**Author:** ![kermat](https://yyz1.discourse-cdn.com/flex003/user_avatar/forums.linbit.com/kermat/32/21_2.png) [@kermat](https://forums.linbit.com/u/kermat)\
**Post date:** [August 19, 2024, 4:34pm UTC](https://forums.linbit.com/t/error-unable-to-find-agent-nvmet-subsystem-try-specifying-its-full-name/245/2 "2024-08-19T16:34:29Z")

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It sounds like you might just be missing the `resource-agents` package. It doesn’t look like the guide explicitly mentions this package should be installed.

```auto
# dnf install resource-agents

```

If you can confirm this, that would be great, and I can update the guide.

---

<div class="post-metadata">

**Author:** ![kermat](https://yyz1.discourse-cdn.com/flex003/user_avatar/forums.linbit.com/kermat/32/21_2.png) [@kermat](https://forums.linbit.com/u/kermat)\
**Post date:** [August 19, 2024, 10:11pm UTC](https://forums.linbit.com/t/error-unable-to-find-agent-nvmet-subsystem-try-specifying-its-full-name/245/3 "2024-08-19T22:11:59Z")

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I just checked the packages for AlmaLinux 9 (assuming you’re using RHEL 9 or some variant) and I can see that they do not supply the necessary OCF resource agents for clustering NVMe in their packages.

You will either need to fetch those agents from the `resource-agents` [GitHub](https://github.com/ClusterLabs/resource-agents/tree/main/heartbeat), or use the more current `resource-agents` package that LINBIT maintains in our customer repositories.

---

<div class="post-metadata">

**Author:** ![Anton](https://avatars.discourse-cdn.com/v4/letter/a/d9b06d/32.png) [@Anton](https://forums.linbit.com/u/Anton)\
**Post date:** [August 24, 2025, 2:12pm UTC](https://forums.linbit.com/t/error-unable-to-find-agent-nvmet-subsystem-try-specifying-its-full-name/245/4 "2025-08-24T14:12:28Z")

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Interesting that 1 year later, Aug 2025, RHEL\Rocky\Alma 10 still have no nvmet-\* (namespace, port, subsystem) included in resource-agents packages.

At the same time, for instance Fedora 42, openSuSe 15.6 and Ubuntu 22.04 already have nvmet-\* in their resource-agents packages.

Not sure why RHEL\Rocky\Alma 10 are still lagging behind.