[ Thanks to Mayank
for this link. ]
“Running out of disk space on partitions is a problem
commonly and universally experienced by all of us. And although
there are various solutions, almost all of them are temporary. In
this article we take a detailed look at LVM, which tackles the
problem in the most effective manner, making space management
easy.“
“There are tools available that can resize your partition, but
what do you do if there is no free space left on your hard drive?
One option is that you delete and re-create your partitions. Add
another hard drive, create a bigger partition there and move our
data there. Although possible, such methods are temporary and in
all probability, you will run out of space again. The need of the
hour therefore, is not a static and temporary solution, but a more
dynamic one that’s also easy to administer and maintain. And LVM
fulfills that need.”
“LVM is very close to the magic 1.0 release (it?s at 0.9), but
you don’t have to wait for that version. It’s now part of the 2.4
kernel and patches for 2.2.17+ are available. Some distributions
like SuSE have patched the 2.2 kernel for LVM support and also
provide the required tools.”