[Engine-devel] [vdsm] RFC: Writeup on VDSM-libstoragemgmt integration

[Itamar Heim]

On 06/23/2012 02:31 AM, Andy Grover wrote:
> On 06/18/2012 01:15 PM, Saggi Mizrahi wrote:
>> Also, there is no mention on credentials in any part of the process.
>> How does VDSM or the host get access to actually modify the storage
>> array? Who holds the creds for that and how? How does the user set
>> this up?
>
> It seems to me more natural to have the oVirt-engine use libstoragemgmt
> directly to allocate and export a volume on the storage array, and then
> pass this info to the vdsm on the node creating the vm. This answers
> Saggi's question about creds -- vdsm never needs array modification
> creds, it only gets handed the params needed to connect and use the new
> block device (ip, iqn, chap, lun).
>
> Is this usage model made difficult or impossible by the current software
> architecture?

what about live snapshots?