Joern Quillmann wrote: >> I have now the allow_restart entry in sysfs. >> It's set to 0 in my machine and it won't let me change it with 'echo 1 >> > allow_restart' or echo -n. I always get a write error. > > I just bought an external USB->IDE converter and tested it again. > Of course due to the cheap concerter-chip the USB disk wont go to > standby mode but I can set 'allow_restart' to 1 with this converter. > > So maybe it's only about sbp2 implementation or specifically my OXFW911 > bridges? FWIW, sbp2 in Linux 2.6.19-rcX sets the allow_restart flag for all HDDs and other direct access devices. In Linux 2.6.18 it does so only for Maxtor disks. Beyond setting that flag or leaving as it is, the sbp2 driver has nothing to do with the restart facility; it's a thing between the SCSI error handler and the target. Of course the firmware of the FireWire bridge has to support it in the first place. I have no data which OXFW911 firmwares do or don't. Also I don't remember which Linux release has the patch that exposes the allow_restart flag as a writable sysfs attribute but I suppose if you can see this attribute, then you have the patch. I can set and unset it with echo on 2.6.19-rc4 just fine, as root of course. -- Stefan Richter -=====-=-==- =-== =--=- http://arcgraph.de/sr/ - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
