August 7, 2012

40 years VM - happy birthday!

40 years ago IBM introduced VM/370 the first virtualization layer. My first really brief encounter was at the end of the 80ies, when I did some RPG programming work. But I learned the real value of it a decade later, when I joined IBM and we moved Linux to the mainframe. The tracing and debugging capabilities are really extremely useful for developing operating systems.

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August 1, 2012

Oracle 11 installation problem on SLES 11 SP2

Before starting an installation of Oracle 11 with the grid infrastructure on SLES11 SP2 it's highly recommended to read the Oracle note with the title "OHASD fails to start on SuSE 11 SP2 on IBM: Linux on System z [ID 1476511.1]".
OHASD is the Oracle High Availability Service Daemon. So if this doesn't start on zLinux SLES 11 SP2 then consult the Oracle note above on