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Posts from ‘August, 2009’

Logical Volume Expansion With Linux LVM

Sometimes we just run out of space in filesystems. Whether due to lack of understanding of application storage needs, poor planning or we just need extra space for a development effort, we find it necessary to add disk. Virtualization gives us the ability to quickly provision new virtual disks that behave identically to physical ones. [...]

Propagate SSH keys across a Linux Cluster

If you build and manage Linux clusters, you need to easily SSH and SCP among all the nodes without entering a password each time. Some cluster software requires that ability, so it can move files and software and run commands among all the members. Oracle RAC is an example. The Clusterware Verification Utility will fail [...]