ASM

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Oracle ASM lifesaver

I had a very nasty experience with Oracle ASM recently. A long story short, ASM crashed on both our RAC nodes when removing a corrupted archive file on file and incarnation number (removing it on it’s name didn’t work). Starting the instance failed. When removing the failing diskgroup

ASM

Oracle 11g ASM disk discovery

During the installation of Oracle 11gR2 on Red Hat Enterprise Linux 5 I stumbled upon a incorrect default setting for ASM disk discovery when using ASM lib. The discovery path is set to ‘/dev/raw/sd*’, which is incorrect because ASM lib creates the devices under ‘/dev/oracleasm/disks’. Another