Howto / Live Migration with shared FC-LUN

[macday]

Hello everybody,

I have a pretty cool proxmox-setup with a big fibre-channel san with just one proxmox-host and a local mounted fc-lun formated with ext3. How could I use this mounted volume on a diferrent host, too? Or how is fibre-channel setup correctly to have live migration?

Thanks to all
macday

 

[tom]

See http://pve.proxmox.com/wiki/Storage_Model#Use_local_devices_.28like_.2Fdev.2Fsd...2F.2C_FC.29

 

[macday]

Thank you.

I did that already. But I want to add a second host. Can I just check the shared-button in the storage configuration and mount the same vg on two different hosts ?

macday

 

[l.mierzwa]

You can safely use single FC LUN as shared storage in cluster as long as proxmox will manage it, all You need to is is:

1. login using ssh to master and manually create lvm physical volume from LUN (pvcreate)
2. create lvm logical volume on this new lvm physical volume (lvcreate)
3. login to web frontend and add new lvm storage (don't forget to mark it as shared)

 

[tom]

no, you formatted the FC drive with ext3. you cannot access a non-cluster file system on both nodes. do it like described, with LVM2.

 

[mwojciechowski]

You can safely use single FC LUN as shared storage in cluster as long as proxmox will manage it, all You need to is is:

1. login using ssh to master and manually create lvm physical volume from LUN (pvcreate)
2. create lvm logical volume on this new lvm physical volume (lvcreate)
3. login to web frontend and add new lvm storage (don't forget to mark it as shared)

I think You missed the volume group creation with vgcreate after pvcreate.