From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Aravamudan Date: Tue, 26 Apr 2005 23:15:16 +0000 Subject: udev & kernel names Message-Id: <20050426231516.GD2740@us.ibm.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org Greg, udev Developers, One of the most valuable features of new udev-based system is persistent device naming. This is especially useful for large systems, which may involve upwards of 4000 disks. Rather than determining which disk is sdzz, the administrator can name it tray15_disk7 and thus easily access the drive. We all know this much, though. Another interesting idea would be to somehow inform the kernel of these new names (sysfs?). The gist being that currently, even though udev has created a new dev node for the device, the kernel is unaware of this ``name'' when reporting errors. I think it could be very useful for our friendly sysadmin to see ``tray15_disk7 has failed'' rather than ``sdzz has failed.'' Or perhaps they want to offline an entire tray; it would be simpler in scripts to refer to ``tray15_*'' than the appropriate kernel device nodes. My questions are: Is this feasible? Would a new file per-device in sysfs be the appropriate place for this? Is there a better way to go about getting these useful log messages? If I need to clarify the problem/proposed solution further, please let me know. Please make sure to keep me CC'ed on replies, as I am not subscribed to the hotplug list. Thanks, Nish ------------------------------------------------------- SF.Net email is sponsored by: Tell us your software development plans! Take this survey and enter to win a one-year sub to SourceForge.net Plus IDC's 2005 look-ahead and a copy of this survey Click here to start! http://www.idcswdc.com/cgi-bin/survey?id5hix _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel