Jun Kamada
2007-Aug-30 23:44 UTC
[Xen-devel] Our pvSCSI split driver worked well on NPIV environment
Hi all, We have successfully made our pvSCSI split driver works on NPIV environment. This means that each guest domain can exclusively use own "logical" HBA even if the host machine have only one "physical" HBA. We believe that our pvSCSI split driver is useful on NPIV environment and is needed for enterprise domain. Following are evaluation environment. [Hardware] Host machine： Fujitsu PRIMERGY RX300 S3 (IA32 machine) FC-Switch: Fujitsu Eternus SN200 Model430 Storage: Fujitsu Eternus 4000 [Software] Xen 3.1 Linux Kernel： 2.6.18 Please refer following URL about the pvSCSI split driver. http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00450.html http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00451.html http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00452.html http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00453.html http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00561.html http://lists.xensource.com/archives/html/xen-devel/2007-08/msg00002.html Best regards, ----- Jun Kamada _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Aaron Dailey
2007-Sep-18 05:20 UTC
Re: [Xen-devel] Our pvSCSI split driver worked well on NPIV environment
Kamada-san and all, We''re also working on an NPIV driver for Solaris xVM (see http://www.news.com/8301-13580_3-9778296-39.html for what xVM means). I''ve looked at the pvSCSI split driver, and I think it''s valuable for both NPIV FibreChannel and standard SCSI environments. Especially with NPIV though it will become valuable because we can dedicate one virtual HBA to a DOMU, and use those devices as SCSI devices. I see it as especially valuable for tape, but also for non standard SCSI devices. Also some users may want to use it for disk instead of using the block driver. For example, in Solaris, we can control write cache on disk drives differently depending on SCSI status, information which would be unavailable via block interface. Regards, Aaron Jun Kamada wrote:> Hi all, > > We have successfully made our pvSCSI split driver works on NPIV > environment. This means that each guest domain can exclusively use own > "logical" HBA even if the host machine have only one "physical" HBA. > We believe that our pvSCSI split driver is useful on NPIV environment > and is needed for enterprise domain. > > Following are evaluation environment. > > [Hardware] > Host machine： Fujitsu PRIMERGY RX300 S3 (IA32 machine) > FC-Switch: Fujitsu Eternus SN200 Model430 > Storage: Fujitsu Eternus 4000 > > [Software] > Xen 3.1 > Linux Kernel： 2.6.18 > > Please refer following URL about the pvSCSI split driver. > > http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00450.html > http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00451.html > http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00452.html > http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00453.html > http://lists.xensource.com/archives/html/xen-devel/2007-07/msg00561.html > > http://lists.xensource.com/archives/html/xen-devel/2007-08/msg00002.html > > Best regards, > > ----- > Jun Kamada > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Jun Kamada
2007-Sep-18 10:38 UTC
Re: [Xen-devel] Our pvSCSI split driver worked well on NPIV environment
Hi Aaron-san, Thank you for your interests to our pvSCSI split driver. We believe that there are a lot of situations guest domain would like to issue SCSI command. In the near future, we will post the new version of pvSCSI driver described below. - Integrate source code of pure SCSI functions and FC transport layer functions - Support reset function - And fix some bugs Thanks kama@jp.fujitsu.com On Tue, 18 Sep 2007 13:20:47 +0800 Aaron Dailey <Aaron.Dailey@Sun.COM> wrote:> Kamada-san and all, > > We''re also working on an NPIV driver for Solaris xVM (see > http://www.news.com/8301-13580_3-9778296-39.html for what xVM means). > > I''ve looked at the pvSCSI split driver, and I think it''s valuable for > both NPIV FibreChannel and standard SCSI environments. Especially with > NPIV though it will become valuable because we can dedicate one virtual > HBA to a DOMU, and use those devices as SCSI devices. > > I see it as especially valuable for tape, but also for non standard SCSI > devices. Also some users may want to use it for disk instead of using > the block driver. For example, in Solaris, we can control write cache on > disk drives differently depending on SCSI status, information which > would be unavailable via block interface. > > Regards, > > Aaron_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel