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=PV composed of physical volumes or partitions PV can be composed of one or more VG VG can be divided into several LV convenient expansionPVs VGs LVs can view the currently existing PV VG LVMy CentOS hard drive 20g was used for a while and 100g at this time we can use extensions to extend our partition sizeSee how many hard drives you havels/dev/sd* | Grep-v ' [0-9] 'See how many partitions you havels/dev/sd*To create a new partition or resize a hard

Phenomenon: mistakenly delete lv after viewing table space utilization failure, see Alert log, found the following error: Errors in FILE/HOME/ORACLE/ADMIN/ZHJPORT/BDUMP/ZHJPORT1_DBW0_2871436.TRC: Ora-01186:file Bayi Failed verification tests Ora-01157:cannot identify/lock data file 81-see DBWR trace file Ora-01110:data file Bayi: '/dev/rpat_bas_1 ' 1. Try rebuilding LV to see if you can recover Mklv-t

Tags: simple operation of Linux LVMCreate LV-L Specify LV size-L (L) specifies the number of Le that the LV contains-n Specifies the LV nameView LVThis is the creation of the LV only after the appearance.Extended LV-L (L) Specify

Environment: SLES11 SP4To view LVM metadata:Ls/etc/lvmArchive directory: Every change is backed upBackup directory: For Back up directoryMetadata no data?Or, this is the same as the above format.Vgcfgbackup-f%S.VGOr you can see it directly from the disk.DD If=/dev/sda2 bs=512 count=24 | StringsRefer to the following information:http://www.linuxquestions.org/questions/linux-newbie-8/ lvm-mount-physical-volume-logical-volume-without-a-working-volume-group-845424/SLES11 PV

Several Concepts in LVM: PV (physical volume): physical volume is at the bottom of the logical volume management system and can be partitioned on the entire physical hard disk or the actual physical hard disk. VG (volume group): A volume is created on a physical volume. A volume group must contain at least one physical volume. After a volume group is created, it can be dynamically added to the volume group, A logical volume Management System project can contain multiple volume groups.

/mapper/vg_host01-Lv_home and re-mount the home under Mount/dev/mapper/vg_host01-lv_home/Home6, view free space Copy code example: Vgdisplay|grep"Free PE"7, use the Lvextend directive to extend the logical volume space to/dev/mapper/vg_host01-Example of copy code code in Lv_root directory: Lvextend-L +150g/dev/mapper/vg_host01-Lv_root8, Reassign/dev/mapper/vg_host01-lv_root Space Size Copy Code code example: RESIZE2FS-p/dev/mapper/vg_host01-Lv_root9, see structure Copy code code example: Dffiles

This article was sponsored by Xiuyi linfeng and first launched in the dark world. The previous article introduces the basic LVM knowledge. This article describes how to expand the logical Volume LV and volume group VG of LVM. We know that the logical volume of LVM is equivalent to a partition. Since it is a partition, it has a distinction between the size and space. What should I do if the current logical volume space is insufficient? Don't worr

Problem phenomenon: Create a new LV on AIX and then create a table space on the LV, appearing warning (Oracle recommends creating new datafiles on devices with zero offset) Alter tablespace zj_data add datafile '/dev/rdata40_disk ' size 2500M Wed APR 27 22:45:36 2011 Warning:you are creating Datafile/dev/rdata41_disk. Warning:oracle recommends creating new datafiles on devices with zero offset. The com

View Volume group related information [Root@localhost/]# Vgscan Reading All physical volumes. This could take a while ... Found Volume Group "VolGroup00" using metadata type LVM2 View the PV, LV information contained in the volume group VolGroup00. [root@localhost/]#vgdisplay-vvolgroup00 Using Volumegroup (s) oncommandline findingvolume group "VolGroup00" ---Volumegroup--- VGName volgroup00 SystemID Format lvm2 MetadataAreas 1 MetadataSequenceNo

Tags: href kernel technology share first HTM PVC default text Baidu View existing disk usage after new disk starts the systemCommand df-h Looking at the existing disk, we found that the system already has a 10G disk SDB, which has 1305 cylinders, each with a 8225280 bytes (about 8M)But it's not partitioned.Command fdisk-l To partition a disk SDB:Command:fdisk/dev/sdbIf you do not know the specific operation in Fdisk,Can input m for help.The most common isN (New)D (Delete)P (print)Q (Exit

Linux increases LV (logical volume) capacity2017-09-29-17:34:13Personal original Blog, reproduced please indicate the source.To view the relevant commands for a logical volume:LVS VGSCommand:[Email protected] ~]# VGSVG #PV #LV #SN Attr vsize vfreeVg_arch 1 4 0 wz--n-544.01g 0[Email protected] ~]# PVsPV VG Fmt Attr PSize pfree/dev/sda2 vg_arch lvm2 a--u 544.01g 0Command Df-hlooking at the existing disks, w

Logical volumes are now very popular on a variety of systems and are a way to address the lack of hard disk space. The following is a simple note from Baidu Online course linuxcast.net. Reproduced in this, I hope to find help for everyone.Creating a logical Volume1. Initialize the physical disk device to a physical volume PVCREATE/DEV/SDB/DEV/SDC2. Create a volume group and add PV to the volume group Vgcreate LINUXCAST/DEV/SDB/DEV/SDC3, based on volume group, create Logical Volume Lvcreate-n myl

QQ Group member rank title how to obtain? 1, the rank title according to the user in the group rank different and change, the rank is higher by the former rank title more distinguished; 2, all members of the group ranked according to the level of integration, the same points into the group early members of the first ranking. QQ Group member level (LV) display settings Group master can be in the information card = "Set up in the Chat window to disp

ADTUpgrade to the latest versionV20Post-keyboard and analog keyboard failure Solution The solution is simple. manually add the support for the keyboard: 1.InEclipseOpenAVDManagement interface; 2.Select the simulator to be modified and

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How to modify the name Method One: We open QQ Group, then we click "Set" = "member" = "click Next to the Edit button =" Enter the content you want to enter and then click Save. Method Two: Into group set = "Click on the" edit title "=" to the

equivalent to an extended partition. We can create a new partition on this extended partition. Therefore, we want to use this logical device to store data, you must create a logical partition on this logical device. This logical partition is a truly scalable partition. For example [PV]: Physical Volume [VG]: Volume Group [LV]: Logical Volume The size of the VG (volume group) Boundary depends on the size of the PV (physical volume) combination. Alth

use a symbolic link or a tool to adjust the partition size (such as patitionmagic), but this is only a temporary solution, the problem is not fundamentally solved. With the appearance of the Logical Disk volume management function in Linux, these problems have been solved, and users can easily adjust the size of each partition without downtime. Demo environment: centos6.4. Three hard disks, two of which are created and one is extended. Overview: PE | PV | VG |

LVM (Logical Volume Manager) Logical volume management is a common operation in Linux Disk Management, this article mainly describes the basic principles of LVM and the operation of the expansion and reduction of LVM.LVM is essentially a software way to combine multiple physical partitions or disks into a variable-size volume group of VG, and then make a variable-size logical volume LV by using the basic unit PE in the VG.The advantages of LVM: By adj

LVM is a mechanism for dynamically adjusting the way Linux partitions are partitioned. Logical volumes can be read and write efficiently without the high average disk, but the dynamic management of disk space is a more flexible way to manage the device. The underlying logical volume can be a disk, a RAID array, or a SAN disk. The process of creating a logical volume can be summed up in the following four sections: Hardware Device-> Create a physical volume PV-> Create a volume group VG-> Create