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: LVM
Cloning to smaller Disks
A spate of failures of Samsung 850PRO SSD drives at a client’s site was the inspiration for this post. The SSD’s were used to boot the OS and were in a RAID 1 mirror when the second SSD had failed. Replacing the Samsung SSD would have been easy as its a hardware Raid, but the client …
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 …