lvm thin in a big array

[JoseLuis]

Hi,

I'm going to install proxmox in a big machine (12 6TB disks, RAID card, 24 cores, 128 GB RAM, 128 GB SSD).

After reviewing the documentation and several forum topics, I think a good configuration for storage could be:

1. install the OS in the SSD
2. Create a RAID 6 with those 12 disks.
3. Create a VG with the whole array.
4. Create an LV for directory storage (for backups, etc.)
5. Create an LVM-thin for Virtual Machines.

What do you think about it? any drawbacks not foreseen?

Best regards,

 

[LnxBil]

any drawbacks not foreseen?

Problem with the SSD is a single-point-of-failure. I would not go into production with this.

If you have a modern Hardware-RAID-Controller which is capable of running a multi-tiered storage, add the SSD as cache there and install everything on the one RAID volume you created.

 

[JoseLuis]

Problem with the SSD is a single-point-of-failure. I would not go into production with this.

If you have a modern Hardware-RAID-Controller which is capable of running a multi-tiered storage, add the SSD as cache there and install everything on the one RAID volume you created.

Thank you for your useful feedback.

 

[sg90]

Thank you for your useful feedback.

Making sure you install as a read only cache!! Or a loss of the SSD would cause you loads of corruption.

 

[LnxBil]

Making sure you install as a read only cache!!

You mean write through cache.