Hi RAC-DBAs, installing the Oracle Clusterware CRS 10.2 on SLES10 with its multipath devices can be tricky. Background: The tool formatting the OCR disks, clsfmt.bin, is buggy concerning multipath / device mapper devices and you will see root.sh fail and clsfmt spit out errors like: clsfmt: Failure trying to resize OCR file from … bytes […]
Category: IT
My first steps with Gentoo – Part I
Hi, saw some friends of mine using Gentoo for useful purposes (only had experience with Gentoo users asking useless questions and/or causing deeply clueless arguments about the use of a portage based OS so far), I needed to check it myself. First thing, loaded a minimalistic Gentoo 2007.0 .iso file onto my VMware server, and […]
VoIP Provider
Hi Folx, have a look at http://vionetworks.de, a VoIP provider with an interesting concept. Have fun Usn […]
Lecture “Highly available Communications Server” (Oracle Database) at DOAG conference 2007
Hi, I’ll give a lecture about high availability with Oracle RAC and Dataguard at DOAG Conference 2007 (annual conference of the German Oracle User’s Group). The talk will be in German. (“Ein hochverfügbarer Kommunikationsserver mit RAC, ASM, redundant shared media und DataGuard”) When? Thursday, November 22nd 2007 1300hrs Where? CCN CongressCenter Nürnberg Ost Messezentrum D-90471 […]
Solaris SMF (Service Management Facility) introduction
Hi, Solaris is great. I found out as I purchased an used Fujitsu Siemens Primepower 400 some time ago. Now, here is a new category: Solaris, and most time it will mean Solaris 10. Solaris IS cool – not at least because of its stable and self-healing system service management, called “SMF” (Service Management Facility), […]
Scheduler hangs in Oracle Database 10g
Hi, sometimes the 10g scheduler refuses to start jobs any more. I do not know why at the moment, but as a workaround you can just kill -9 the “coordinator job queue (CJQ0)” process from OS level. The process will be named like “ora_cjq0_SID” in a RAC. PMON does a restart of the coordinator after […]
Picture alignment trouble for 1680×1050 resolution (WXGA)? Use xvidtune!
Hi, just got a brand-new LG L226 WTQ and it refused to align the picture properly, the auto set feature left a full of 15cm on the left unused and black, and same 15cm on the right hidden. Changing position of the picture manually (by drive down the “HORIZONTAL” value to zero) reduced the black/hidden […]
How to fail over a client transparently in a dataguard switchover/failover scenario
Hi, with using dataguard (Oracle’s hot/cold standby database solution) you have the challenge to make a failover or a roleswitch between the primary and the standby database transparent to the clients. If you don’t, you will have a (partially) loss of service: Clients tnsnames.ora’s will need reconfiguration or the application has to use another TNS […]
Job exchange for Linux/OSS
Hi, this idea looks good to me: http://www.linux-lancers.com/de/ It’s a free job platform for Linux and OSS – I think the world needs things like this. Please let me know whether it works or not. Good luck, Usn […]
Kerberos auth with Apache 2.2 and Microsoft Active Directory
Hi, just a note: Have a look at http://www.grolmsnet.de/kerbtut/ It’s not perfect, but my additions will follow as soon as my prototype here is running well. At the moment it does, but I do not fully understand why 🙂 Regards Usn […]