New to Proxmox - Questions

[Zotacman]

Hi,

I learned about Proxmox a week ago and I'm just blown away by the possibilities. I did a lot of research in the past few days on how I could use it and I would like to validate a few things with you to make sure that what I have in mind is possible (basically that I understood correctly what I read ).

I'm sure this won't be perfect, but full disclosure, this is for toying at home.

First computer:
- 32gb ram
- 2 NIC
- 8x 3TB hard drive (ZFS raidz2)
- 2x 128gb SSD (ZFS log and cache)
- 1 2TB hard drive (backup)
- 1 512gb SSD for the OS

Second computer:
-16gb ram
- 3 NIC
- 2x 1TB hard drive (mirrored)
- 1 320gb hard drive for the OS

What I have in mind:

Up to now, the first computer was used with NAS4FREE where I added some jails to run some services.
What I would like to do is install Proxmox on both computers and create a cluster between the 2. The first computer would be used as main storage and to run some VM and containers. The second container would only be used to run some VM and containers.

Questions:
1- Since I want to do a cluster between the 2, would the VMs and containers running on the second computer have access to the storage of the first computer as it would be local to this computer? The reason I ask is that I'm wondering if it would be possible for the VMs/containers to be moved from one computer to the other with my setup?

2- Should I add more NIC to my first computer to be able to do the things I describe in my first question? If so, why? I'm guessing, 1 for the cluster, 1 for the storage, 1 for the VM/containers?

3- From what I read, the steps I have in mind:
1- Build the first computer, add the ZFS storage
2- Build the second computer, add the mirrored storage
3- Build the cluster
4- From this fourth step, this si where things get less clear as to how I can share my storage from the first computer with the second one to do what I described earlier.


Thank you very much!
Vincent

 

[Zotacman]

Anyone?

Thank you!

 

[udo]

Hi,

I learned about Proxmox a week ago and I'm just blown away by the possibilities. I did a lot of research in the past few days on how I could use it and I would like to validate a few things with you to make sure that what I have in mind is possible (basically that I understood correctly what I read ).

I'm sure this won't be perfect, but full disclosure, this is for toying at home.

First computer:
- 32gb ram
- 2 NIC
- 8x 3TB hard drive (ZFS raidz2)
- 2x 128gb SSD (ZFS log and cache)
- 1 2TB hard drive (backup)
- 1 512gb SSD for the OS

Second computer:
-16gb ram
- 3 NIC
- 2x 1TB hard drive (mirrored)
- 1 320gb hard drive for the OS

What I have in mind:

Up to now, the first computer was used with NAS4FREE where I added some jails to run some services.
What I would like to do is install Proxmox on both computers and create a cluster between the 2. The first computer would be used as main storage and to run some VM and containers. The second container would only be used to run some VM and containers.

Questions:
1- Since I want to do a cluster between the 2, would the VMs and containers running on the second computer have access to the storage of the first computer as it would be local to this computer? The reason I ask is that I'm wondering if it would be possible for the VMs/containers to be moved from one computer to the other with my setup?

Hi,
the storage is local-storage only - so only VMs on that node can access the storage.
But you can move VMs from one node to the other (if both healthy). Til now via gui with stopped VM, or via cli (like "qm migrate 110 pve-b --online --with-local-disks") online.

2- Should I add more NIC to my first computer to be able to do the things I describe in my first question? If so, why? I'm guessing, 1 for the cluster, 1 for the storage, 1 for the VM/containers?

hmm, one posibility for such an setup was drbd - but I would not recommended drbd in this pve-version. With pve-5 DRBD-8 should be back - than it's an good alternative - perhaps you should prepare your disks for drbd?!

3- From what I read, the steps I have in mind:
1- Build the first computer, add the ZFS storage
2- Build the second computer, add the mirrored storage
3- Build the cluster
4- From this fourth step, this si where things get less clear as to how I can share my storage from the first computer with the second one to do what I described earlier.

like I wrote - the storage is local storage - so without tricks you have the storage on one node only.

Udo

 

[wolfgang]

Hi,

You have a two node setup where both nodes are depend on the other.
This setup is for home use ok but not for productive.

1. 2 nics are quiet enough for this setup.
1 nic for VM to network, cluster communication and 1 nic for storage what should connect directly.
3.

Build the second computer, add the mirrored storage

We do not support mirrored storage you can use zfs send and receive for asyncron replica.

3- Build the cluster

This would be step 2. the cluster is a foundation for every thing.