linux lvm

Record the log of creating LVM at one time and create LVM log records First, let's take a picture of laruence LVM. I feel this is the clearest picture. # The following is a direct record using the Xshell logging system. Some Comments [BEGIN] 9:22:24 # Check the hard disk first. [root @ iZ23h637rtdZ ~] # Fdisk-lDisk/dev/vda: 64.4 GB, 64424509440 bytes255 heads,

LVM is the short name of the Logical Disk volume management (Logical Volume Manager), which is a mechanism for managing disk partitions in a Linux environment, and LVM is a logical layer on top of hard disks and partitions to improve the flexibility of disk partition management. As mentioned earlier, LVM is a logical l

physical volume information from the backup fileVolume Group Creation and deletion commands# Vgcreate volume group name physical volume full path name [physical volume full path name]# Vgremove volume group nameCommand to expand or contract a volume group# Vgextend volume group name physical volume full path name [physical volume full path name]# Vgreduce volume group name physical volume full path name [physical volume full path name]Merge and split a volume group# Vgmerge target volume group

LVM logical volume management commands and lvm logical commands # Lvmdiskscan // check all storage devices such as SCSI and IDE# Lvmchange-R |-reset // reset logical volume manager# Lvmsadc [full log file path name] // read/write statistics of the receiver logical volume manager, saved to the log file.# Full path name of the lvmsar Log File // read and report the logical volume from the log file generated b

General LVM operations, general LVM operations1. Create a physical volume on the disk partition# Fdisk/dev/hdb# Pvdisplay/dev/hdb1 // create a physical volume on the created partition or hard disk# Pvcreate/dev/hdb12. Create a volume group using physical volumes# Vgcreate myVG/dev/hdb1 // create a volume group. You can add new physical volumes to an existing volume group as needed.3. Create a logical volume

(I) physical volume (1) PV Overview A device must be initialized to a PV before it can be used by LVM. This will place a tag at the start of the device, also known as "8e ".By default, LVM labels are placed in 2nd 512-byte sectors.However, you can place the PV tag in any of the first four 512-byte sectors of a disk.An LVM label also exists after restart and is k

. vgcreate vgpool /dev/sdb1 Vgpool is the name of the newly created volume group. You can use any name you like, but it is recommended that the label start with vg so that you can realize this is a volume group when using it later. Create logical volume Logical volume to be used when creating LVM: lvcreate -L 3G-n lvstuff vgpool -L command to specify the logical volume size, which is 3 GB in this case,-n command to specify the volume name. Spe

This article was sponsored by Xiuyi linfeng and first launched in the dark world. I have been learning about LVM logical volumes for some time. The previous articles introduced the basic knowledge about LVM logical volumes, including logical volume and volume group resizing. Today, we will introduce the LVM snapshot feature. Note: This experiment is integrated wi

/sdb1 1 654 5253223 + 8e Linux LVM/Dev/sdb2 655 1308 5253255 8e Linux LVM/Dev/sdb3 1309 1962 5253255 8e Linux LVM/Dev/sdb4 1963 2616 5253255 8e Linux LVMCommand (m for help): d # Delete

LVM is short for logical disk volume Management (LogicalVolumeManager). It is a mechanism for managing disk partitions in Linux. LVM is a logical layer built on hard disks and partitions, to improve the flexibility of disk partition management. The LVM system administrator can easily manage disk partitions. For example

Configuring LVM under CentOS 6.3 (Logical volume management)First, Introduction LVM is the short name of the Logical Disk volume management (Logical Volume Manager), which is a mechanism for managing disk partitions in a Linux environment, and LVM is a logical layer on top of hard disks and partitions to improve the fl

Logical partition management (LVM) is a disk management option included in every mainstream Linux release. Whether you need to set a storage pool or just want to dynamically create partitions, LVM is what you are looking. What is LVM? Logical partition management is an abstraction layer between disks, partitions, and o

Detailed description of SUSE12 system installation and LVM settings, and suse12 system installation of lvmThe custom installation of SUSE12 is similar to that of previous versions, but it only adjusts the functional installation sequence. For example, the network settings are placed in the front, and the SUSE11 is almost in the second half, after the custom partition is adjusted to the network settings, the entry settings are also confidential. If you

type of the partition when partitioning. Select 8e, Which is LVM. Here we will create a 10g LVM as an example. Here we use the/dev/SDB disk for partitioning. # Fdisk/dev/SDB command (M for help): n command Action E extended P primary partition (1-4) P specifies the primary partition (but LVM does not require this, both primary and logical partitions are supporte

(I) LVM entry-level program Volume management creates an abstraction layer on a physical storage device, allowing you to create logical storage volumes. This greatly increases flexibility compared to direct use of physical storage devices.Logical volumes Allow Storage Virtualization. With logical volumes, you are not limited by the size of physical disks.In addition, the hardware storage configuration and software are independent, so you can adjust an

allows you to adjust partitions, create snapshots, Merge multiple disks into one logical volume, and so on-everything can be done at system runtime. Unlike traditional partitions, you do not need to turn off your system, drive from Live CD or USB, and then adjust it when these partitions are not in use. Frankly speaking, ordinary Ubuntu Desktop Users may not realize whether they are using LVM. However, if you want to do something more advanced in the

Configure LVM in CentOS 6.3 I. Introduction LVM is short for Logical Volume Manager. It is a mechanism for managing disk partitions in Linux, LVM is a logical layer built on hard disks and partitions to improve the flexibility of disk partition management. The operating principle of

Lvm-snapshot: Attention and Please for LVM snapshot-based backup! The beginning 3. LVM-based snapshot backup Lvm-snapshot: LVM-based snapshot backup (1) transaction logs and data files must be on the same volume; (2) before creating a snapshot volume, request the MySQL glob

partition [Root @ linuxas ~] # Fdisk/dev/sda The number of cylinders for this disk is set to 1044. There is nothing wrong with that, but this is larger than1024, And coshould in certain setups cause problems: 1) software that runs at boot time (e.g., old versions ofLILO) 2) booting and partitioning software from other OSs (E.g., dos fdisk, OS/2 FDISK) Command (m for help): p (view partition information) Disk/dev/sda: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 cylinders Units =

Basic concepts and Management of LVM and basic concepts Management of lvm I. Problems with traditional disk management When the partition size is insufficient, it cannot be expanded. You can only add a disk or create a new partition to expand the space. However, the newly added hard disk exists as an independent file system, the original file system is not extended, and upper-layer applications can only acc