Proxmox/Ceph Disk Layout

[cmwillia]

Hello All,

I am currently working on some hosts that have 8x 600GB 10k SAS drives and am planning on using these to install Proxmox and use the rest for CEPH. Is there a best way to split out these drives by filesystem? Should I use the RAID controller on the server or is it better to use the RAID utilities in the different filesystems.

Thank You!

 

[alexskysilk]

What you ask can only be done if the server in question supports disk passthrough. With that enabled your system will see 8 independent disks and you can use them as you see fit.

 

[cmwillia]

What you ask can only be done if the server in question supports disk passthrough. With that enabled your system will see 8 independent disks and you can use them as you see fit.

Yup, just discovered that after breaking RAID. I think I can go from here. Thanks!

 

[jdancer]

On 12th-gen Dells, you can flash the PERC to IT-mode via https://fohdeesha.com/docs/perc.html

On 13th-gen Dells, configure the PERC (flashed to latest firmware) to HBA/IT-mode. Delete any existing RAID volumes.

I would ZFS mirror (RAID-1) two drives for Proxmox use the rest as Ceph OSDs.

That's how I got it configured.