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We have created raw devices on the "SUSE Linux Enterprise Server 11 SP2 (x86_64)". these raw devices are used for informix database and to have different owner(i.e. informix) than root and permission 660. The RAW devices are not stable, they are loosing the filerights somtimes. Not only when rebooting! Any idea how to get the file rights stable, please let me know.
I've not done it in Suse for Informix but have in RHEL for Oracle RAC. In the latter one modifies udev raw rules so I did a web search for suse udev raw to see if it had any hits and found one that talks about it for Suse 12 and Informix:
Every time Suse comes with a new version of its operating system we must carefully have a look on how they handle raw devices resp. logical volumes. This week i upgraded from Suse 11.4 to Suse 12.1, IDS remains unchanged on version 11.70. There is no substantial change in handling raw-devices by Suse 12.1, but it is very important to use the correct udev-file. otherwise you can get a surprise - may be that mouse and keyboard does not work....
So what do we need in order to install correct working raw-devices?
First, go to directory /lib/udev/rules.d. Then edit the file 50-udev-default.rules and insert the following row: