[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] RE: [Xen-users] Release 0.9.2 of GPL PV Drivers for Windows
> > James, if you can find some free time, could you please explain us how > this vscsi thing works and how to enable it? Would it also gain us some > performance, or is for serving other purpose? > pvSCSI was a series of patches posted by Jun Kamada on or around 18th Feb 2008 (look for subject "[Patch x/7] pvSCSI driver]. Jun was given a heap of feedback in response to those patches and went away to dwell on it. A recent post indicated that he would be releasing an updated version soon. xenscsi is a windows frontend driver to the pvSCSI backend driver, and allows (via the sg interface) raw scsi devices to be exported from Linux to Windows. I am now using it to do test restores of Symantec's Backup Exec backups using Symantec's IDR CD. Because the PV drivers are all WDM instead of WDF, it's easy enough to make a windows text mode setup floppy so you can activate the drivers via F6 when installing Windows. As for performance, I'm getting between 1-2GB/minute from the tape drive, this performance is probably limited by other factors, eg I'm still using the qemu harddisk drivers at that stage. If you had a scsi device (or sas/sata possibly) that you were willing to dedicate solely to one domain, xenscsi would allow you to do it. I've only tested it on tape drives at the moment. YMMV :) James _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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