Understanding Device-mapper in Linux 2.6 Kernel
(Doc ID 456239.1)
Last updated on FEBRUARY 14, 2022
Applies to:
Linux OS - Version 2.6 to 2.6 Oracle Cloud Infrastructure - Version N/A and later Linux x86 Linux x86-64
Linux Kernel - Version: 2.6 to 2.6
*** ***
Purpose
Device-mapper is a very important component of Linux 2.6 kernel. It is used for many critical storage related applications, such as LVM2, Linux native multipath tool device-mapper-multipath, device-mapper software RAID, etc. A solid understanding of device-mapper helps system administrators to investigate various kinds of issues with these applications.
Scope
This bulletin is to explain the goal of device-mapper driver and it will explore the internal mechanism as well as some details of implementation. Finally there will be an example of leveraging dmsetup.
Details
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
