When Good Disks Go Bad: Dealing with Disk Failures Under LVM (5900-3153, June 2013)

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Conclusion
In your role as system manager, you will encounter disk failures. LVM can lessen the impact of those
disk failures, enabling you to configure your data storage to make a disk failure transparent to users,
and to keep your system and data available during the recovery process. By making use of hardware
features, such as hot-swappable disks, and software features, such as mirroring and online disk
replacement, you can maximize your system availability and minimize data loss due to disk failure.