In this video, Kevin Dankwardt see how to create physical volumes and then scan and list them. He describes how physical volumes fit into the LVM abstraction layers.
- [Instructor] Physical volumes for Logical Volume Manager…are physical disk space, like a disk or a partition.…Now, usually it's recommended that you use whole disks…for Logical Volume Manager.…So you could have multiple disks on your system,…and you could group them together into a volume group.…And using whole disks makes overall that administration…easier, you're just working with whole disks,…not worrying about partitioning.…And things like striping will be better performance…cause you want to stripe between disks.…
You create a physical volume, that is,…get it ready, initialize it, set it as a…physical volume kind of thing, with the pvcreate command.…You can find out what physical volumes you have…on your system with pvdisplay or pvscan.…It's possible to move what's allocated…on one of your physical volumes to other physical volumes…in your volume group with the pvmove,…that would be handy if you want to, say,…remove a removable disk.…
And then you can reduce the volume group…to eliminate the use of that disk…
- Partitioning storage
- Creating, mounting, and unmounting file systems
- Formatting file systems
- Making volumes with LVM
- Adding storage security
- Managing swap spaces
- Backing up and recovering Linux storage systems
- Working with networked file systems like NFS and SSHFS
Skill Level Intermediate
Linux: Bash Shell and Scriptswith Kevin Dankwardt2h 46m Intermediate
Linux: Multitasking at the Command Linewith Scott Simpson39m 1s Intermediate
1. Disk Partitions, Formatting, and Mounting
2. Logical Volume Manager (LVM)
3. Security and Resource Constraints
4. Special Storage Features and Considerations
5. Networked File Systems
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