On 03/07/12 20:58, Gerhard Wiesinger wrote: > On Wed, 7 Mar 2012, Brian Jackson wrote: >> I think most people trying to use qemu for anything useful have given >> up on if=scsi. Some distros even disable support because they don't >> want to QA it. That should be a decent sign that you may want to avoid >> it. > > OK, but SAS (Serial attached SCSI) is technology in the area of storage > interface technology where all big storage vendors see future (e.g. they > give up: FC and SATA drives, SATA drives are replaced by MDL SATA drives > (SATA 7200RPM drives with SAS interface)).
The problem isn't scsi. The problem is the lsi adapter. Problem #1 is the hardware design which makes it hard to emulate it correctly and #2 that you need a non-redistributable rom file to boot from it. > Therefore I don't understand why distros are giving up SAS which is also > SCSI (of course old legacy SCSI is understandable). Nobody gives up on scsi. See virtio-scsi merged recently. There also is megasas aiming for merge (which shares the boot issue with lsi though). cheers, Gerd
