Klaus, Have you tried to use the package oracleasm? This package installs some binaries to manipulate ASM Disks, creating new devices (based on the originals /dev/sd*), into /dev/oracleasm/ and changing the owner of the devices. Oracle Database does not use raw devices in RHEL anymore, by default. They recommend installing this package and administrate everything by it. <a href="http://www.oracle.com/technetwork/topics/linux/asmlib/index-101839.html">http://www.oracle.com/technetwork/topics/linux/asmlib/index-101839.html</a> I hope this helps. Regards, <div class="gmail_quote">On Tue, Sep 13, 2011 at 4:18 PM, Klaus Lichtenwalder <<a href="mailto:lichtenwalder@gmail.com">lichtenwalder@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi, I just can't find any pointers. Problem is, our database guys want to use Oracle ASM (which is some kind of raw devices). To not mix things up between regular volumes and ASM devices, we decided to put them into a special vg (yes, oracle recommends against it, but you somehow has to administer the machines. And looking into their shell scripts, it seems to not being a thing of reason but more the lack of know how of handling arbitrary block devices). Anyway, we'd like the devices to end up with owner oracle:dba. There seems to be no way, as udev does not create the devices but vgchange, to change the ownership than by using a start script somewhere between vgchange time and oracle asm start up. Is there any other, more "canonical" way? Klaus -- ------------------------------------------------------------------------ Klaus Lichtenwalder, Dipl. Inform., <a href="http://www.lichtenwalder.name" target="_blank">http://www.lichtenwalder.name</a> PGP Key fingerprint: BF52 72FA 1F5A 1E29 C0F8 498C C4C6 633C 2821 97DA _______________________________________________ linux-lvm mailing list <a href="mailto:linux-lvm@redhat.com">linux-lvm@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/linux-lvm" target="_blank">https://www.redhat.com/mailman/listinfo/linux-lvm</a> read the LVM HOW-TO at <a href="http://tldp.org/HOWTO/LVM-HOWTO/" target="_blank">http://tldp.org/HOWTO/LVM-HOWTO/</a> </blockquote></div> -- Carlos Eduardo Tavares Terra Red Hat Certified Engineer Consultor em Infraestrutura de TI GNU/Linux #413291 [<a href="http://counter.li.org" target="_blank">http://counter.li.org</a>]