What is Ceph?

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Disclaimer: This video is sponsored by SoftIron.

My previous video was all about software-defined storage, or SDS, an alternative to traditional proprietary storage arrays. There are obvious pros and cons with both approaches but if you choose to go the SDS way, the burning question is: what SDS software to use? Ceph seems to be the benchmark SDS software for many.

Join me with a closer look into Ceph, what are it's capabilities and what SoftIron HyperDrive adds to the Ceph experience.

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Ceph website:

SoftIron website:

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💥 Check out my NEW COURSE "Introduction to Enterprise IT [2024]" and learn the fundamentals of Enterprise IT in one go and one day! 💥

TechEnthusiastInc

Came to the video for Ceph, left as subscriber! Great work, Markus! Keep it up!

minkyone

This dude illustrates backwards, left-handed, real-time... And only 10k views in 6months??? I'm amazed.

iBogart

Nice vid 👍
3:00 --- "You can provision object, block and file stores from the same Ceph cluster."
3:18 --- "Crush is used to algorithmically store and locate the data."
3:25 --- "Using erasure coding instead of RAID."
4:42 --- Enterprises of every size doubtless want wider availability of "low-power ARM-based" compute.
Meanwhile, others are seeing Longhorn (Rancher/SUSE/EQT) coming for Ceph.
Kindest regards, neighbours and friends.

chromerims

Hey what's the best good performance clustered file system to use right now? I'm building 4 gpu compute nodes over 50 GB/sec infiniband and each has 4x7000R/4000W u.2 drives so it's FAST and there should be a filesystem that could get each node peaking at 50 GB/sec and that would be the one to use which is it?

isbestlizard

You should make more explainer videos, you are a lot easy to understand. I wonder why your channel has not grown to what it's capability is.

kedarhargude

Hey Markus, many thanks for video, I've always struggled with the concept of CEPH vs SAN's & NAS's (ZFS) and would like some clarity around what I perceive as "the elephant in the room", power consumption, based on my numbers CEPH nodes would use more power than traditional storage equipment, also my other concern is latency, if I understand correctly, ones application/vm needs to wait for success writing of data to all nodes ...if so, how is this concept better? especial in cloud environment....maybe I can't see the trees for forest and missing the obvious and would value your feedback. cheers

paulfx

Is there a possibility in you creating video of a CephFS setup?

brandonpatzold

Thanks for the video. Can I use Ceph as part of an HCI solution?

abdelfiala

Proxmox has ceph build in ready for a HCI deployment

dillonhansen

2:48
You said: "can scale ..vertically..infinitely large". That is not correct, as scaling vertically means, you add more ressources to the system, eg. CPU or RAM.

Scaling horizontally means, you add more Systems to the Cluster which is what you do when you expand your ceph cluster - you add nodes.
So it doesn't scale _vertically_, but _horizontally_!

3:34
First: ceph _can_ use erasure coding. It can use replicated pools, too, which would be something like a RAID 1.
Second: erasure coding is not neccessarily faster than RAID. EC and RAID are two different approaches of getting data redundancy and -safety. It depends on configuration, implementation and hardware which one is faster than the other one.

drmzplt