Will Proxmox recognize my software RAID5?

[Zamana]

Hi!

Currently I have a home server with Ubuntu Server LTS 14.04.3. It has been running for about 2 year and a half.

I have a software RAID5 with 4 x 4TB disks ((11TB net disk space), whith 6.1TB of actual data.

I want to install a fresh new server under Proxmox, but I don't want (and I can't) lose my data.

Question: will Proxmox recognize the RAID5?

Thanks.
Regards.

 

[dietmar]

No, Proxmox does not recognize software RAID.

 

[Zamana]

Ok.

After installing a VM (another Ubuntu Server 14.04), it will be able to recognize my former RAID5?

What I mean is to avoid the obvious strategy of make a backup of 6TB...

 

[dietmar]

Proxmox is a normal Debian with a quite new linux kernel. So it is technically possible to do anything - you just need to know how to do it. But the Proxmox Installer CD will not do that job.

 

[Zamana]

Proxmox is a normal Debian with a quite new linux kernel. So it is technically possible to do anything - you just need to know how to do it. But the Proxmox Installer CD will not do that job.

Supposing that I know how to use mdadm (and I actually do), I'll be able to "recover" my current RAID without any data loss, so I will be able to use it from my VMs. Is it right?

 

[sigxcpu]

Sure you will, as dietmar said. It will not be available in the installer phase (you will need to install Promox itself on another drive, even USB SSD - not stick) and then you can import your RAID volume with no issues.

 

[dietmar]

You did not specified exactly what you want to do. But for what I see that should work without problems.

 

[Zamana]

You did not specified exactly what you want to do. But for what I see that should work without problems.

I'm sorry. English is not my native language.

Looking for similar questions I found this thread:

http://bit.ly/1m1xVbe

Specifically, the messages #19, #21 and #24/#25 express better what I'm trying to achieve.

By from what all of you have been saying until now, I guess that this is quite feasible.

Thank you very much.

 

[Zamana]

Well, finally I installed Proxmox and, after installing mdadm, my raid array was automatically detected and restored. No data loss. Thanks!

Now I'm struggling to find a way to make my mounting points in the host visible to my first VM. I guess that this has to be done inside VM->Hardware->Add->Harddisk, but no matter what I do, the VM always says that the disk doesn't have a valid partition table, although the disk is already mounted successfully in the host.

Any hints?