CEPH advise

[HomeLabNerd]

I want some advice regarding CEPH. I like to use it in the future when I have a 3 node cluster. The idea is to have 2 NVME ssd's per node. 1 1TB ssd for the OS and 1 4TB ssd for the CEPH storage. Is this a good approach?

Btw I'm think of WD SN850X or Samsung 990 Pro SSD's

 

[ness1602]

The approach is okay for inital cluster, you will need atlest 2.5g , and these ssds are okay for OS,not for CEPH.

 

[HomeLabNerd]

The approach is okay for inital cluster, you will need atlest 2.5g , and these ssds are okay for OS,not for CEPH.

What for NVME do you recommend for CEPH?

 

[HomeLabNerd]

The Kingston Fury Renegade 4TB SSD has an TBW 4TB, DWPD 0,55, TLC and has a cache (3,906GB).

It also available from 512GB to 4TB.

Edit: this setup is for a homelab.

 

[ness1602]

Any enterprise SSD ,except Kingston, they lie a lot about their cache or PLP.
For homelab, you could go with whatever since this is not important.

 

[HomeLabNerd]

Any enterprise SSD ,except Kingston, they lie a lot about their cache or PLP.

Didn't know

For homelab, you could go with whatever since this is not important.

If you must choice a nvme for you homelab what should you choice and why?

 

[ness1602]

I would choose the one with better cooling, everything else is pretty much the same. ON the other hand, i have one customer with Samsung SSDs and 4-node CEPH,and it works okay.