5/16/2023 0 Comments Veritas volume manager softwareWhen we bring the physical disk under Vxvm by initialization il will not prissiest the existing data it format whole disk & bring under Vxvm control.Įncaptualization will be preserves the existing data if you want to go root disk mirroring first we have to encaptulized the root disk and have to mirror. We can bring the physical disk under Vxvm control in two different ways. #mount -F vxfs /dev/vx/dsk/rootdg/vol01 /sun Veritas Volume Manager (Vxvm) Internet Architecture The plex is striped plex the volume is become a striped volume. The plex is concatenated plex the volume is become a concatenated volume. The default behavior of the volume is depending on the layout of the plex. Volume is a collection of plex, to create a Volume minimum is one plex maximum is 32 plexs. To create a plex minimum is one sub disk maximum is no limitations. We can create up to maximum of 400 sub disk for Vmdisks, sub disks should be unique in a disk group The logical partition under the Vmdisk is called as sub disks. Before version 4.0 the last Vmdisk in a disk group is wasted it cannot be used for the future purpose, where in version 4.1 we can destroy the whole disk group. We can create up to a maximum of 8 disk group for a machine.īefore version 4.0 the first disk group name is rootdg from version 4.1 it’s a user defines. To create a disk group minimum requirement is one Vmdisk and maximum is no limitations. Vmdisk name should be unique in the disk group.ĭisk Group is a collection of Vmdisks. We can name the vmdiak up to maximum number of 32 characters. The disk which is under Vxvm control is called as vmdisk. These are the objects which are creating under Vxvm. The whole disk which as act as a single logical partition is called as a physical partition it represent as follows If you are creating a more then one logical partition in the same disk its called as physical disk it represent as follows It’s a main configuration daemon which is responsible for invoke the hot spare to the failed disk partition. It’s a main configuration daemon which is responsible for veritas input and output kernel threads It’s a main configuration daemon which is responsible for updating the changes happen on the disk group to kernel We cannot run vxdiskadm command simultaneously on more than one terminal. It’s a package which contains veritas volume manager library filesĢ) VEA (Veritas Enterprise Administration) It’s a package which is responsible for veritas file system It’s a package which contains veritas developer kits It’s a package which is responsible for veritas documentation This package is responsible for administrating the vxvm in GUI This package is responsible for vxvm manual pages It’s a package which is responsible for veritas volume manager licensing It’s a main configuration package which contains the core related files of vxvm * Man page size of the volume can be up to 255tb You can also use VxVM to dynamically configure storage while the system is active.Volume manager is software which is used to following purpose:. VxVM provides the tools to improve performance and ensure data availability and integrity. This allows volumes to span multiple disks and LUNs. VxVM overcomes restrictions imposed by hardware disk devices and by LUNs by providing a logical volume management layer. Additionally, VxVM provides features that enhance fault tolerance and fast recovery from disk failure or storage array failure. By supporting the Redundant Array of Independent Disks (RAID) model, VxVM can be configured to protect against disk and hardware failure, and to increase I/O throughput. VxVM provides easy-to-use online disk storage management for computing environments and Storage Area Network (SAN) environments. A VxVM volume appears to applications and the operating system as a physical device on which file systems, databases and other managed data objects can be configured. Veritas TM Volume Manager (VxVM) by Symantec is a storage management subsystem that allows you to manage physical disks and logical unit numbers (LUNs) as logical devices called volumes.
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