ISO 9001:2015 Certified Company

Sukrala IT Services Pvt. Ltd.,
SCO 23-24-25, Level 3rd,
SEC 34-A, Chandigarh.
Phone: 99-88-74-1983, 0172-503-1983

Logical Volume Management

  • 0

Logical Volume Management

What is LVM (Logical Volume Management)?

LVM is a tool for logical volume management which includes appropriate disks, striping, mirroring and realizing logical volumes.

With LVM, a hard drive or set of hard drives is allocated to one or other physical volumes. LVM physical volumes can be arranged on other block devices which efficiency span two or more disks. The physical volumes are mixed into logical volumes, with the exclusions of the /boot/ partition. The /boot/ partition cannot be on a logical volume group because the boot loader cannot read it. If the root (/) partition is on a logical volume, create a separate /boot/ partition which is not a part of a volume group. Logical Volume management is an important topic in the Linux that you can practically with Linux Training in Chandigarh.

LVM is used for the following purposes:

  • Managing extensive hard disk area by grant disks to be added and replaced without downtime or service delay, in merger with hot substitute.
  • Creating single sensible quantity of various essential amount  or complete hard disks , allowing for destructive volume resizing.
  • On small systems rather  having to completions at accessions time how large a partition might need to be, LVM gives acceptance filesystems to be simply resized as required.
  • Performing logical backups by taking snapshots of the logical volumes.
  • Encrypting various environmental barriers with one password.

LVM can be manage as a delicious software layer on dominated of the hard disks and boundary, which creates an reflections of dependability and ease of use for charge hard drive restoration and backup.

Basic functionality of LVM

  • Volume groups can be consist by arresting new physical volumes (PVs) online and bump original ones.
  • Logical volumes can be resides online by join amount onto them or compress extents.
  • LVs can be moved between PVs.
  • establishment of read-only snapshots of logical volumes and read-write snapshots .
  • Volume Groups  can be selection or absorb in site as long as no LVs age the division. This can be useful when depart whole obvious Volume  to or from disconnected deport.
  • LVM objects can be tagged for administrative advantage.
  • VGs and LVs can be built active as the invisible devices become present through use.
  • Experience the power of Linux and learn the subject with the best institute of Linux Training in Chandigarh.

 

Advanced functionality of LVM

  • Hybrid volumes can be build using the dm-cache target, which grant one or more fast deport devices, such as burst-based SSDs, to actions as a wealth for one or more heavy hard disk drives.
  • Easily coddle LVs can be apportion from a pool.
  • On advanced versions of device surveyor, LVM is unified with the vacations of device mapper suitable to ignore the particular directions that back a dm-multiple device if devices/multipath_component_detection=1 is set in lvm.conf. This prohibits LVM from stimulate volumes on an individual path rather of the multiple device.

 

LVM Structure

The structure of a Logical Volume Manager disk humidity is adored given below. Logical Volume Management empower the connecting of different original hard drives and/or disk barriers into a single volume group (VG). That volume body can then be partitions into relevant volumes (LV) or used as a original large volume. Regular file systems, such as EXT3 or EXT4, can then be build on a logical volume.

The two entire physical hard drives and one division from a third hard drive have been connected into a single volume part. Two logical volumes have been completed from the capacity in the volume associate, and a filesystem, such as an EXT3 or EXT4 filesystem has been prompt on each of the two flexibility volumes.

Logical Volume Management

 

Adding disk space to a host is moderately straightforward but, in my experience, is done almost occasionally. The basic steps needed are recorded below. You can each of two create an absolutely new volume group or you can add the new space to an actual volume group and either develop an existing logical volume or create a new one.

Adding a new Logical Volume Management

There are times when it is basic to add a new logical volume to a host. For example, after observing that the directory consist virtual disks for my Virtual Box virtual machines was dressing up the /home file system, I decided to create a new obvious volume in which to store the virtual machine data, including the virtual disks. This would free up a great deal of space in my /home value system and also allow me to regulate the disk space for the VM’s independently. The basic steps for adding a new logical volume are as follows.

  1. If necessary, install a new hard drive.
  2. Optional: Create a barrier on the hard drive.
  3. Create a physical volume (PV) of the exhaustive hard drive or a partition on the hard drive.
  4. Assign the new physical volume to an current volume group (VG) or create a new volume group.
  5. Create a new logical volumes (LV) from the capacity in the volume group.
  6. Create a filesystem on the new logical volume.
  7. Add relevant entries to /etc/fstab for mounting the filesystem.
  8. Mount the file system.

Resizing a logical volume in an LVM file system

The need to resize a filesystem has been about since the starting of the first versions of Unix and has not gone away with Linux. It has earned simply, however, with Logical Volume Management.

  1. If necessary, install a new hard drive.
  2. Optional: Create a partition on the hard drive.
  3. Create a physical volume (PV) of the entries hard drive or a partition on the hard drive.
  4. Assign the new physical volume to an actual  volume group (VG) or create a new volume group.
  5. Create one or more relevant volumes (LV) from the space in the volume group, or expand an actual logical volume with some or all of the new space in the volume group.
  6. If you build a new logical volume, create a filesystem on it. If adding space to an current logical volume, use the resize command to augment the filesystem to fill the space in the sensible volume.
  7. Add relevant entries to /etc/fstab for arise the filesystem.
  8. Rise the file system. Hone your skills with Linux Training in Chandigarh.

Facebook Comments


Contact Us

PHP Training in Chandigarh

PHP Training in Chandigarh
Rated PHP training in Chandigarh 5/5 based on 9963 reviews

Facebook Comments

Facebook Comments

Chandigarh’s First Youtube Channel-Video Management Laboratory Setup

Adwords video Certification

SEO courses in chandigarh

Adwords Search Certificate

best seo training institute in Chandigarh

Adwords Shopping Certification

SEO course in chandigarh

Adwords Display Certification

SEO course in chandigarh

Google Analytics Certification

Best SEO training in chandigarh

Bing Ads Certification

digital marketing course in chandigarh

Student Review

CCNA Training in Chandigarh
PHP Training in Chandigarh 5/5 stars
I am really satisfied with CCNA Training in Chandigarh at CBitss Technologies. All credits goes to my professional trainer & CBitss. They trained me well with many practical exercises.

CCNA Training in Chandigarh

CCNA Training in Chandigarh
Rated PHP training in Chandigarh 5/5 based on 9969 reviews

Testimonials

  • web designing company in chandigarh

    Amit Thakur

    CBitss Technologies is a place where I got the right track for my future as i have completed my course from here and now, I am working in a MNC company. All trainers are well experienced and motivate to learn more & new things. I am feeling proud that i am a student of CBitss and also thankful to our mentors.

  • Android course in chandigarh

    Harman Singh

    Miss. Pooja has multiple methods to make learning fun and easier for students. She has always been excited in sharing her creative ideas with us through practical & logical approach. A special attention is given to every individual student so that one could do practical work independently.

    I am proud and thankful, beyond words, for being a part of CBitss Technologies.

  • Mandeep Singh

    The technology experts who have been provided by this training organization have been highly skilled professionals. They have been willing to take on the full role of a real mentor in this organization and have been accountable for standards within an outstanding training environment.

    I am delighted with the level of training & placement services offered by CBitss Technologies.

  • php industrial training in chandigarh

    Kamini

    We were all hugely pleased with JOB placement provided by CBitss Technologies just after completion of our training.Being girls we found homely environment. The feedback here is that it was by far the best expert trainers we've ever seen.
    Along with technical skill on latest technologies, we were also given inspiration and urge to do hard work by virtue of which we could get JOB.

  • Best android training institute in chandigarh

    Khushlender

    I would strongly recommend CBitss Technologies because they have dedicated JOB placement department which groom the candidates for interview preparation and skill development. The way they keep on informing the candidates about new job vacancies and need of job is really a helping tool.

  • SEO training institute in Chandigarh - Bhavna

    Bhawna

    Digital marketing is one of the best and easiest strategyfor marketing. I have done digital marketing course from CBitss Technologies. It is one of best SEO training institute in Chandigarh, which are thoroughly discussed all SEO techniques used to get top Google ranking of our website. All staff at CBitss are very co-operative and give all their attention to students.
    “ I am very happy that I am a part of CBitss Technologies and I have learnt many new things from CBitss.”

  • web designing course in chandigarh sector 34

    Gurpreet Kaur

    CBitss Technologies provide me excellent training in Web Designing. I enjoyed working with all of my instructors. I have learned a lot from Web designing training in Chandigarh during my six month training. Competent instructors, up-to-date material, and an overall outstanding quality of training and facilities provided by CBitss Technologies. A special attention is given to all students, so I think CBitss is a Best place for learning Web designing.
    “ I am thankful for being a part of CBitss Technologies.”

  • php training institute in chandigarh

    Rajneesh Singh

    The staff at CBitss Technologies are always very polite and helpful and have dealt efficiently with our queries or concerns we may have had during entire training.
    They are pro-active in checking if everything is satisfactory and I would highly recommend their services. Today I am working in IT park Chandigarh and whole credit goes to my mentors at CBitss.

  • Redhat linux certification in Chandigarh

    Diwaker joshi

    All staff at CBitss Technologies connect with the candidates at an emotional level and made a lasting impression. Specially, Mr. Navneet Sharma is passionate and persuasive trainer, and his ability to ignite the trainees into action is remarkable,his creative designs and his explanation that makes us to think is marvellous.

error: Content is protected !!