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

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?