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Showing posts from November, 2010

Setting up SR-IOV in RHEL6 on PowerEdge servers

Dell Community : "RHEL 6 provides SR-IOV functionality on supported hardware which provides near native performance for virtualized guests. Single-Root I/O Virtualization (SR-IOV) specification, introduced by PCI-SIG details how a single PCIe device can be shared between various virtualization guests. Devices capable of SR-IOV functionality support multiple virtual functions on top of the physical function. Virtual Function is enabled in hardware as a light weight PCIe function. Operating System cannot discover this function as it does not respond to the PCI bus scan and requires support in the host’s driver. As in PCIe pass-through, a Virtual function of a SR-IOV capable card can be directly assigned to the guest operating system. A virtual function driver running in the guest manages this device."

Removing multiple GPG key using rpm

For some reason I had a few copies of the same GPG key in my RPM key store and removing them was tricky. Normally, you list your key using rpm -qa gpg-* and can remove them using rpm -e gpg-pubkey-12345678 . Just like anything installed with rpm, for that matter. But what if you have multiple keys? You'll get multiple matches... Easy! Just use rpm -e --allmatches gpg-pubkey-12345678 . :) Source: Red Hat archives