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SamNeuer
Mission Specialist
Mission Specialist
  • 503 Views

use Cockpit to create Logcial Volume in Volume Group

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Hi,

one of the Tasks for exampreperation is:

  • On serverb, configure a new 1 GiB vol_home logical volume in a new 2 GiB extra_storage volume group. Use the unpartitioned /dev/vdb disk to create the partition.

  • Format the vol_home logical volume with the XFS file-system type, and persistently mount it on the /user-homes directory.

Now i tried to use cockpit to solve this task, i found:

https://access.redhat.com/documentation/de-de/red_hat_hyperconverged_infrastructure_for_virtualizati...

to add/manage Logical Volumes and:

https://access.redhat.com/documentation/de-de/red_hat_hyperconverged_infrastructure_for_virtualizati...

to add/manage Volume Groups. But I struggle to find the right order to solve the given tasks.

It's clear how to do it in terminal, but how can i do in using cockpit GUI?

EDIT:

Ok, all i had to do was first create a partition without filesystem. Now everything worked and the grade exam succeeded.

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Travis
Moderator
Moderator
  • 492 Views

@SamNeuer -

The links you posted were for RHHI-V (Red Hat Hyperconverged Infrastructure for Virtualization) which involves RHV and Gluster. 

I'm glad you were able to find your solution, however, there are a few things to keep in mind.

  1. You can use anything to complete exam objectives or labs that you know how to do. The course and student guides show one or two ways to complete a given task as part of the Guided Exercises and EoC Labs. How you implement it generally doesn't matter as long as you meet the criteria.
  2. You need to be careful when using Cockpit (aka Red Hat Web Console) as it may not always be available and installed or it might not have all the additional cockpit packages installed. For that reason, I would strongly suggest that if you are using cockpit on systems perform a dnf install cockpit* to see what packages and plugins it wants to install and choose one or all of them for installation.

For example, cockpit-storaged is one package you would need for working with storage. Most of the time it should likely be there. However, if you want to work with virtual machines, podman (containers) or image builder (composer) you would need to install those packages.

  • cockpit-composer
  • cockpit-machines
  • cockpit-podman

https://fedoramagazine.org/storage-management-with-cockpit/

The Red Hat source reference you want is: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_systems_using...

RHEL8 is when Red Hat branded cockpit as the Red Hat Web Console and began using it in some courses. It is important to note that earlier versions of RHEL also had cockpit available, but depending on the release, not all plugins are expected to be available.

Since I'm assuming you are looking at RHEL 9, there is a larger chance that you have all the needed plugins available to be installed. When I've delivered courses and demos, I've done complete demos from the Web Console showing the partitioning and creation of LVMs as well as formatting the filesystem and creating the mount points (letting cockpit update /etc/fstab) without ever leaving the Web Console.

 

 

Travis Michette, RHCA XIII
https://rhtapps.redhat.com/verify?certId=111-134-086
SENIOR TECHNICAL INSTRUCTOR / CERTIFIED INSTRUCTOR AND EXAMINER
Red Hat Certification + Training

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Travis
Moderator
Moderator
  • 493 Views

@SamNeuer -

The links you posted were for RHHI-V (Red Hat Hyperconverged Infrastructure for Virtualization) which involves RHV and Gluster. 

I'm glad you were able to find your solution, however, there are a few things to keep in mind.

  1. You can use anything to complete exam objectives or labs that you know how to do. The course and student guides show one or two ways to complete a given task as part of the Guided Exercises and EoC Labs. How you implement it generally doesn't matter as long as you meet the criteria.
  2. You need to be careful when using Cockpit (aka Red Hat Web Console) as it may not always be available and installed or it might not have all the additional cockpit packages installed. For that reason, I would strongly suggest that if you are using cockpit on systems perform a dnf install cockpit* to see what packages and plugins it wants to install and choose one or all of them for installation.

For example, cockpit-storaged is one package you would need for working with storage. Most of the time it should likely be there. However, if you want to work with virtual machines, podman (containers) or image builder (composer) you would need to install those packages.

  • cockpit-composer
  • cockpit-machines
  • cockpit-podman

https://fedoramagazine.org/storage-management-with-cockpit/

The Red Hat source reference you want is: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/managing_systems_using...

RHEL8 is when Red Hat branded cockpit as the Red Hat Web Console and began using it in some courses. It is important to note that earlier versions of RHEL also had cockpit available, but depending on the release, not all plugins are expected to be available.

Since I'm assuming you are looking at RHEL 9, there is a larger chance that you have all the needed plugins available to be installed. When I've delivered courses and demos, I've done complete demos from the Web Console showing the partitioning and creation of LVMs as well as formatting the filesystem and creating the mount points (letting cockpit update /etc/fstab) without ever leaving the Web Console.

 

 

Travis Michette, RHCA XIII
https://rhtapps.redhat.com/verify?certId=111-134-086
SENIOR TECHNICAL INSTRUCTOR / CERTIFIED INSTRUCTOR AND EXAMINER
Red Hat Certification + Training
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