LVM is one of the main stay storage technologies in almost all Linux installations and while adding a Logical Volume (LV) is common, migrating an LV is a task that many System Administrators baulk at. Over time, most Linux Systems that have growing storage needs tend to suffer from add-hoc storage allocation which results in …
Category: Storage
HPC Re-Engineering
Overview We have been tasked with proposing how we would re-engineer an aging SGI High Performance Computing platform. The platform is a 35 Node cluster running Red Hat 6.7 on each node with a Lustre file system mount and a /home file system presented via NFS from a Hierarchical Storage Node (over an FDR Infiniband …
Striping Logical Volumes
A Logical Volume (LV) is created from a Logical Volume Manager (LVM) Volume Group (VG). The VG is the central storage component in an LVM based system, a VG can contain one or more Physical Volumes (PV), which are basically disks presented to the files system, partitioned as an LVM disk and then converted to …