Mich hat es schon länger gestört, dass ich unter Linux nur single threaded Packprogramme habe und heute bin ich auf eine Funktion von rar gestoßen, die ich noch nicht kannte: -si[name] Read data from stdin (standard input), when creating an archive. Optional ‘name’ parameter allows to specify a file name of compressed stdin data in…
VT-d / IOMMU with intel haswell and Z87 chipset
A sub project of Homeserver 2.0 was the virtualization of my home router. I wanted to use pass-through of the additional nic for the external interface, so my host system can’t see any external traffic. The steps should be easy, started virt-manager and followed these simple steps: After a reboot of the vm i got…
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…