It's got two physical volumes and so fourth. Easy to use universal Mac app (Apple Silicon or Intel) to admin the mounting on Windows and Apple Macs. Volume Manager is a Mac OS app used to organize, automate and monitor the mounting of Apple volumes/shares/disks. And I can do a VGS, volume group scan, and it can see that we found one volume group. Docker has two options for containers to store files on the host machine, so that the files are persisted even after the container stops: volumes, and bind. Volume Manager 1 Mac App To Auto-Mount Apple & Windows Volumes, Shares, Drives. If I try PV check on some other partition that it doesn't find as a physical volume it will tell you hey there's no LVM label on that partition. If I do PV check one of these it tells me yeah it's a logical volume thing and it found metadata. So we see here on this system it recognizes three partitions as physical volumes, and the first two are in a volume group called VG1, and we see the size and how much is free. So you can do help button command, like I could say help PVS, and it tells me about options for the PVS command. So we'll do LVM, and we get the LVM prompt and we type help and we get lots of stuff. So on this system I've set up some physical volumes and so fourth. So let's look at using LVM, some simple stuff. So instead of having to do a sudo pvcreate sudo vgdisplay you can do sudo LVM and then within the LVM prompt you can do multiple commands. So as to be expected these things are usually privileged commands. So there are stand alone commands like pvcreate and vgdisplay and so fourth, but the LVM command itself has similar commands inside and that can be a little more convenient, because it remembers some context where you are. There are lots of commands involved with LVM including a command called LVM. The Solaris Volume Manager Administration Guide provides instructions on using Solaris Volume Manager to manage disk storage, including creating, modifying. So the logical volume can grow and shrink as well as the volume group can grow and shrink. Click and drag to raise the slider bar under the Device column. which means it wont let you change the size of the system volume. Click the speaker icon to unmute any muted sounds (It will have a red circle with a line next to it). You can group those together into a volume group and then you can build from a volume group a piece that will be called a logical volume. Free partition manager programs for Windows that let you shrink, expand, combine. Where a physical volume is a disk or a disk partition. LVM we can really think of being three levels, so the abstraction of a logical volume is on top of volume groups and physical volumes. So you get both flexibility and improved performance. You can collect together multiple disks or partitions and treat it as one thing, and it can grow and it can shrink and you also can strip across those physical disks or you can mirror so you got two copies. Logical volume manager or LVM provides a abstraction for viewing physical disks as one thing.
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