On 12/19/2011 04:07 PM, Livnat Peer wrote:

On 12/19/2011 02:08 PM, 杨焦 wrote:

...

Hi, all

After taking a look at Ovirt-engine, I happen to notice that for one DC(storage pool), only one type of data domain can be attached. As far as I know, from VDSM side, different data storages can be managed by one storagepool. So, why is there such limitation? is it possible to remove such rule from front-end?

Maybe there are some reasons I don't know support this rule, hope someone can show me some light.

thanks

Joseph

Hi Joseph,

There is a limitation in VDSM today that prevents managing two different types of data domains in the same pool.

There is a plan to move to SDM (Storage Domain Manager) instead of SPM (Storage Pool Manager) in the future and this limitation will disappear.

in addition, the work on attaching iscsi LUNs directly to VMs could allow you to use an NFS storage domain for managed disks, and map LUNs for iscsi (mapped LUNs need 1:1 LUN to virtual disk ratio). doesn't fit all use cases obviously, but may cover your use case for the meanwhile.