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k8s storage (CSI)
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eutampieri feddit.it eutampieri@feddit.it
Joined: 2023-07-01
Quote

I’m looking for storage classes for a multi node cluster. I’m currently using Longhorn and NFS, but I'm not happy with the performance.
My cluster doesn’t have beefy nodes, so Ceph/Rook is out of the question (for now).

Nodes:

  1. 8 GB RAM, 4 cores VM, control plane. 256 GB SSD
  2. 4 GB RAM, 2 cores, control plane, currently cordoned. 128 GB SSD
  3. 8 GB RAM, 4 cores, ARM, control plane. 512 GB SSD
  4. 8 GB RAM, 4 cores. 256 GB SSD
  5. 16 GB RAM, 6 cores. 256 GB SSD + 1 TB HD
  6. RPi 4, 4 GB RAM. 128 GB SSD
5   Original
Decronym Bot Decronym@lemmy.decronym.xyz
Joined: 2026-01-05
#2 · (edited) Quote Reply

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters More Letters
NFS Network File System, a Unix-based file-sharing protocol known for performance and efficiency
SSD Solid State Drive mass storage
k8s Kubernetes container management package

[Thread #95 for this comm, first seen 15th Feb 2026, 11:20]
[FAQ] [Full list] [Contact] [Source code]
1
performation feddit.org performation@feddit.org
Joined: 2026-01-22
#3 · Quote Reply

I started setting up longhorn today. My hardware is a little it beefier, but I still am curious: what performance problems did you run into exactly?
1
eutampieri feddit.it eutampieri@feddit.it
Joined: 2023-07-01
#4 · Quote Reply
performation wrote:
I started setting up longhorn today. My hardware is a little it beefier, but I still am curious: what performance problems did you run into exactly?

My greatest problem is that the CPU load is too high and I ran into an issue with iSCSI that would occasionally peg one core to 100%. It would also make nodes NotReady when too many PVs were scheduled
1
performation feddit.org performation@feddit.org
Joined: 2026-01-22
#5 · Quote Reply
eutampieri wrote:
My greatest problem is that the CPU load is too high and I ran into an issue with iSCSI that would occasionally peg one core to 100%. It would also make nodes NotReady when too many PVs were scheduled

What CPUs are you running exactly? I was under the assumption my greatest bottleneck would be an 1Gbps LAN
1
eutampieri feddit.it eutampieri@feddit.it
Joined: 2023-07-01
#6 · Quote Reply
performation wrote:
What CPUs are you running exactly? I was under the assumption my greatest bottleneck would be an 1Gbps LAN

Just don’t go below 4 cores of x86 and you’ll be fine
1
surewhynotlem lemmy.world surewhynotlem@lemmy.world
Joined: 2023-06-13
#7 · Quote Reply
Decronym wrote:
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread: Fewer Letters More Letters NFS Network File System, a Unix-based file-sharing protocol known for performance and efficiency SSD Solid State Drive mass storage k8s Kubernetes container management package [Thread #95 for this comm, first seen 15th Feb 2026, 11:20]...

Gotta add CSI to that
1
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