Linux CPU Hotplug in VMware

Prerequisites: CPU Hotplug is activated: VMware: Edit Settings -> Options -> Memory/CPU Hotplug -> CPU Hotplug Note: You can only add CPU sockets. If you have configured more e.g. 4 cores per socket you can only add cores in steps of 4 Adding CPUs: Raise the assigned sockets in the settings Activate the added cores…

Linux Memory Hotplug in VMware

Prerequisites: Memory Hotplugging is activated for the VM: VMware: Edit Settings -> Options -> Memory/CPU Hotplug -> Memory Hot Add Kernel module acpi_memhotplug is loaded Memory expansion: Raise assigned memory in the VM settings RAM has to be taken online in the VM. For this execute the script below cd /sys/devices/system/memory for i in memory*…

vCenter SSO Upgrade Error 1603

Two days after release of vSphere 5.5 i have tried the upgrade of our vCenter and it was not a “Next-Next-Finish” thing. During the upgrade of the SSO service a rollback happens and the only thing i found in the logfiles was a cryptic error 1603. After a longer search i found a thread in…

Homeserver 2.0

I got the idea for this project from the german IT magazine c’t. You can find the article in german here. So i thought: Time to consolidate the mess behind my Desk and have all components (HP Microserver, external HDD enclosure, my router and all the power supplies) in one plain PC case. More cpu…