Shared storage on Dell VRTX

[fsantulli]

Hi All,

i've managed to install proxmox over two blades on a Dell VRTX chassis. In the chassis are installed two Shared PERC 8 controllers that access one disk group.

Once i've setup proxmox i've successfully installed multipath tools as i could see two instances of the same drive (cause the dual coltroller) as sbd and sdc.

I've excluded them from the lvm.conf and installed dlm and lvmlockd services to handle a shared storage.

Just a small fix over the lvmlockd service script to make it depends on the dlm service once startup.

I've added the shared vg i've created without pv's to the Cluster installation.

It works on migration with vm's turned off, anyway when the migration is requested with the vm powered on the system fails cause

lvm is locked by other node.

How should i proceed to let it works correctly ?

Kind regards.

Federico

 

[wolfgang]

Hi,

I don't know this setup in detail.
At the online migration for takeover, the storages on both nodes have to be active.
I guess the logic in the cassis does not allow active-active mode.

 

[fsantulli]

Hi wolfgang.

The chassis allow an active-active shared volume at controller level.

I do also have the volume group configured on both nodes.

Maybe i've just mistaken the design as it's a matter of lvmlockd that i couldn't migrate an active vm.

The setup should be just as an iscsi san (even if we have local storage).

Do i have to set it up as a shared directory with a filesystem to cluster or it could be done at LVM level?

I have to tell that i've already managed to make it works with Hyper-V and VMWare so it could be done!

Please let me know.

Kind regards.

 

[wolfgang]

The Proxmox VE recommendation about such setups is LVM as shared storage.
That means no cluster lvm and no ThinLVM.
Proxmox VE handles access to the LVM level by itself.

 

[Ponchogt]

Hi All,

i've managed to install proxmox over two blades on a Dell VRTX chassis. In the chassis are installed two Shared PERC 8 controllers that access one disk group.

Once i've setup proxmox i've successfully installed multipath tools as i could see two instances of the same drive (cause the dual coltroller) as sbd and sdc.

I've excluded them from the lvm.conf and installed dlm and lvmlockd services to handle a shared storage.

Just a small fix over the lvmlockd service script to make it depends on the dlm service once startup.

I've added the shared vg i've created without pv's to the Cluster installation.

It works on migration with vm's turned off, anyway when the migration is requested with the vm powered on the system fails cause

lvm is locked by other node.

How should i proceed to let it works correctly ?

Kind regards.

Federico

Hello, I am investigating how to install proxmox on my vrtx dell, but I can't find a link anywhere where I can take the steps to follow, do you have any place that you can share with me for the steps to follow? , I have the same version of you

regards