On 3/15/06, Romanowski, John (OFT) <[EMAIL PROTECTED]> wrote: > On VM 5.2 I'm considering trying FBA emulation on SCSI for Linux guests > to simplify each Linux guest's configuration and save staff time. > > If the additional CPU overhead doesn't hurt much it'll be worth it.
I have no numbers from such a configuration (but would be interested to see them) so I cannot tell what the impact of this will be. I normally avoid to express an opinion about things I have not tried and measured myself. All I can tell is that the FBA emulation on SCSI was meant for shops that want their Linux data on SCSI to "simplify configuration and save staff time" ;-) because they have an investment in the "open storage" area. For those shops it would be a PITA to define S/390 I/O as well just to hold the basic VM system. Now if you would say that Open FCP for Linux on z/VM would greatly benefit from virtualizing that support on z/VM, then I could not agree more with you. In addition to connecting to and managing the Open FCP data, I could also see some fun in having a virtual SAN living on VM paging space. And I am sure that this is not the first time our friends in z/VM planning see this idea... Rob -- Rob van der Heij Velocity Software, Inc
