Can we emulate OVM inside VirtualBox ?

Earlier I tried to run OVM inside VMWare Fusion, but I never was sure if we could run OVM inside VirtualBox.

I attempted this, and the answer is NO, at least not with VirtualBox 4. We can install OVS and OVMM, but once we start a machine, it appears the required instructionset is not available in VirtualBox.

Message:  OVMAPI_5001E Job: 1440092598809/QueuedVmStartDbImpl_1440092598808/Start/resume vm: test.0, on server: server2, failed. Job Failure Event: 1440092601373/Server Async Command Failed/OVMEVT_00C014D_001 Async command failed on server: server2. Object: test.0, PID: 11304, Server error: Command: ['xm', 'create', '/OVS/Repositories/0004fb000003000067b3b661e335f73e/VirtualMachines/0004fb0000060000562f999dab3e822f/vm.cfg'] failed (1): stderr: Error: HVM guest support is unavailable: is VT/AMD-V supported by your CPU and enabled in your BIOS? stdout: Using config file "/OVS/Repositories/0004fb000003000067b3b661e335f73e/VirtualMachines/0004fb0000060000562f999dab3e822f/vm.cfg". , on server: server2, associated with object: 0004fb0000060000562f999dab3e822f [Thu Aug 20 13:43:21 EDT 2015]

Even though hardware virtualization is available to the server:

vboxmanage list hostinfo
Host Information:

Host time: 2015-08-20T18:00:16.855000000Z
Processor online count: 4
Processor count: 4
Processor online core count: 4
Processor core count: 2
Processor#0 speed: 3100 MHz
Processor#0 description: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
Processor#1 speed: 3100 MHz
Processor#1 description: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
Processor#2 speed: 3100 MHz
Processor#2 description: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
Processor#3 speed: 3100 MHz
Processor#3 description: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
Memory size: 16384 MByte
Memory available: 5434 MByte
Operating system: Darwin
Operating system version: 14.5.0

vboxmanage showvminfo "OVM333s1"
Name:            OVM333s1
...
Hardw. virt.ext: on
Nested Paging:   on
Large Pages:     on
VT-x VPID:       on
VT-x unr. exec.: on
...

Cannot change WebCenter Spaces role memberships #3

To complement my earlier postings, Cannot change WebCenter Spaces role memberships, we finally came to the conclusion.

Bug 20662946 : IF UNIQUEMEMBER OF A USER IN A ROLE IS DELETE ERRORS OCCUR IN WCP is applicable for the Oracle OPSS, on which WebCenter relies. However, this was fixed in
Patch 18559164 MERGE REQUEST ON TOP OF 11.1.1.7.0 FOR BUGS 18428053 14598730 17566136 17838292.

Meaning, this Problem doesn't occur once Patch 18559164 has been installed (on top of 11.1.1.7), or when running a higher version (11.1.1.8).

The problem was hit due to the long overdue patching on the WebCenter environment. Being patched to 11.1.1.8.6, the issue is confirmed no longer reproducible.