lvm

RAID verses LVM

If I were to consider between LVM (Logical Volume Management) and RAID, would I have to choose between the two, or would they go hand in hand? Which one would should I choose over the other, for various setups (say, database server, file server, workstation etc). Comparison would be great. ...

Provisioning new LVM volumes?

I looking to use LVM to easily limit a users usable disk space. Is it possible to provision new LVM volumes from unallocated space LVM space without having to create/initialize all the drives and partitions again? Lets say I have a volume group named "datag". Can create new logical volumes as needed (lvcreate)? Or do I need to create ...

Mount LVM overlays/snapshots?

Dear lazyweb, I'm trying to mount a disk image created with the Fedora LiveUSB creator under Ubuntu programmatically, and I'm encountering some issues. From what I've been told, it's very difficult to mount LVM snapshots outside of the host system. I have both the "pristine" image and the persistent snapshot, so I thought that it shou...

checking cluster-wide open files using gfs / clvm

Hi, I wonder if it is possible to check if a file has already been opened by another node in the same GFS cluster. For example, fuser command runs cluster-wide in TruCluster. Is it possible to query lock managers data via a command or api ? Thanks a lot B. ...

Kvm disk increase

Hi, How can I increase the size of a disk allocated to a KVM machine ? It can be lvm, raw file etc. thanks ...