Found a total of 13 related content
Do you need lvm in linux?
Article Introduction:Linux uses lvm. LVM refers to logical volume management, which is a mechanism for managing disk partitions in the Linux environment. LVM is a logical layer built on the hard disk and partitions to improve the flexibility of disk partition management. The biggest feature of LVM is that it can dynamically manage disks. Because the size of the logical volume can be dynamically adjusted without losing existing data; if a new hard disk is added, it will not change the existing upper logical volume. As a dynamic disk management mechanism, logical volume technology greatly improves the flexibility of disk management. Introduction to LVM LVM is the abbreviation of Logical Volume Manager (LogicalVolumeManager). It is a method for managing disk partitions in the Linux environment.
2023-05-14
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528
Does linux use lvm?
Article Introduction:Linux uses lvm. LVM refers to logical volume management, which is a mechanism for managing disk partitions in the Linux environment. LVM is a logical layer built on the hard disk and partitions to improve the flexibility of disk partition management. The biggest feature of LVM is that it can dynamically manage disks. Because the size of the logical volume can be dynamically adjusted without losing existing data; if a new hard disk is added, it will not change the existing upper logical volume. As a dynamic disk management mechanism, logical volume technology greatly improves the flexibility of disk management.
2023-03-13
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914
What is the lvm partition of linux?
Article Introduction:The lvm partition of Linux refers to "logical volume management". The full English name of lvm is "Logical Volume Manager", which is a mechanism for managing disk partitions in the Linux environment; LVM is a logic built on the hard disk and partitions. layer to improve the flexibility of disk partition management.
2023-03-24
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1121
what is lvm in linux
Article Introduction:In Linux, the full name of LVM is "Logical Volume Manager", which means "logical volume management" in Chinese. It is a mechanism for managing disk partitions in the Linux environment; LVM is a logical layer built on the hard disk and partition, which can be used to improve the flexibility of disk partition management.
2022-02-24
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6231
Demonstration of the production process of lvm software under linux
Article Introduction:A previous article introduced lvm, and today I will demonstrate the process of making lvm. The production process of lvm has the following steps: Disk partition, use partition to create pv, create vg with pv, split lv from vg, format lv and mount it in the directory, use next...
2020-11-19
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1719
How to expand the default LVM space of Linux
Article Introduction:1. Introduction to LinuxLVM LinuxLogicalVolumeManager (LVM) is a tool for managing disks and storage space. It provides flexible storage management through volume groups and logical volumes. The core concepts of LVM include physical volumes, volume groups and logical volumes. Physical volume (PhysicalVolume, PV): A physical volume is a physical hard disk or partition, which is used by LVM to store data. LVM combines one or more physical volumes into volume groups. Volume Group (VG): A volume group is a logical storage unit composed of one or more physical volumes. Logical volumes are created on volume groups, and they can dynamically allocate and reclaim storage space. A system can contain multiple volume groups. logical volume (
2024-02-19
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984
What is centos lvm
Article Introduction:In centos, the full name of lvm is "Logical Volume Manager", which means "logical volume management" in Chinese. It is a mechanism for managing disk partitions in the Linux environment. The original intention of its creation is to solve the problem of hard disk devices having difficulty after creating partitions. Permission to modify partition size.
2022-01-28
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3026
Streamline storage space and easily manage Linux LVM
Article Introduction:As a Linux system administrator, managing storage space is a very important task. As your business expands, managing hard drive space becomes increasingly difficult. In the case of traditional partitioning, you have to manage the entire partition, but in LinuxLVM, you can set up the storage space more flexibly and easily expand or reduce it when needed. Reducing/shrinking logical volumes poses the highest risk of data corruption. So, try to avoid this if possible, but if there is no other option, go ahead. Before shrinking LVM, it is recommended to make a backup first. When you run out of disk space in LVM, you can do this by shrinking the existing LVM that is not using all the space, instead of adding a new physical disk, on the volume group
2024-02-13
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170
Capacity expansion of xfs file system in LVM
Article Introduction:Introduction: I have never been exposed to CentOS7 before, and I don’t understand the features it has changed. I accidentally came into contact with LVM in centos7. The method of creating LVM is the same as that in 6, but the expansion of LVM is a little different. Use the previous method. The expansion never took effect, and it took me a long time to figure out how to expand it. Xfs is the default file system type of CentOS7, and different file system types have different creation, inspection, and adjustment commands. Xfs is the default file system type of CentOS7, and different file system types have different creation, inspection, and adjustment commands. In the xfs file system, the partition can only be increased but not reduced. [root@localhost~]#ls
2023-12-28
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316
How to add a hard disk and adjust the LVM size on CentOS7?
Article Introduction:LVM is the abbreviation of LogicalVolumeManager (Logical Volume Management), which is a mechanism for managing disk partitions in the Linux environment. LVM virtualizes one or more disk partitions (PV) into a volume group (VG), which is equivalent to a large hard disk, on which we can divide some logical volumes (LV). When the space in the volume group is insufficient, new disk partitions can be added. We can also allocate some space from the remaining space of the volume group for use by logical volumes that do not have enough space. The LVM model is as shown below: There is no need to restart to refresh the new hard disk file. First, use the cat command cat/proc/scsi/scsi to browse the Id:??What is the largest one? Then echo "scsiadd-
2024-01-02
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950
Basic steps to create lvm expansion
Article Introduction:Use the df-Th command to view disk information. You can see that the current LVM logical volume capacity is 38G[root@Z~]#df-TH file system type capacity used available used% mount point /dev/mapper/centos-rootxfs38G2 .4G36G7%/devtmpfsdevtmpfs1.1G01.1G0%/devtmpfstmpfs1.1G01.1G0%/dev/shmtmpfstmpfs1.1G10M1.1G1%/runtmpfstmpfs1.1G01.1G0%/sys/fs/cgroup/dev/sda1xfs1.1G139M92
2024-02-19
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637
How to use LVM disk operation commands in Linux disk management
Article Introduction:LVM, LogicalVolumeManger, is a logical volume management function provided by the Linux kernel. It is composed of kernel drivers and application layer tools. It creates a logical layer based on the hard disk partitions, which can be very flexible and very convenient to manage storage devices. . LVM uses the device-mapper function of the Linux kernel to virtualize the storage system (system partitions are independent of the underlying hardware). Through LVM, the storage space can be abstracted and virtual partitions can be established on it. Partitions can be expanded and reduced more easily. When adding or deleting partitions, there is no need to worry about not having enough contiguous space on a certain hard disk to avoid losing space for the one being used. disk
2023-05-23
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2153
Centos7 adjusts LVM size of XFS format
Article Introduction:The centos introductory tutorial column below will introduce to you the method of adjusting the LVM size of XFS format in centos7. I hope it will be helpful to friends in need! Premise: XFS is the pre-installed operating system of centos7. XFS can only be expanded but not reduced, so you need to use xfsdump/xfsrestore..
2020-07-21
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1945