RedHat EX294 Exam - Topic 3 Question 49 Discussion

Actual exam question for RedHat's EX294 exam

Question #: 49
Topic #: 3

[All EX294 Questions]

Create Logical volumes with lvm.yml in all nodes according to following

requirements.

----------------------------------------------------------------------------------------

* Create a new Logical volume named as 'data'

* LV should be the member of 'research' Volume Group

* LV size should be 1500M

* It should be formatted with ext4 file-system.

--> If Volume Group does not exist then it should print the message "VG Not found"

--> If the VG can not accommodate 1500M size then it should print "LV Can not be

created with

following size", then the LV should be created with 800M of size.

--> Do not perform any mounting for this LV.

AExplanation:
Solution as:
# pwd
/home/admin/ansible
# vim lvm.yml
---
- name:
hosts: all
ignore_errors: yes
tasks:
- name:
lvol:
lv: data
vg: research
size: '1500'
- debug:
msg: 'VG Not found'
when: ansible_lvm.vgs.research is not defined
- debug:
msg: 'LV Can not be created with following size'
when: ansible_lvm.vgs.research.size_g < '1.5'
- name:
lvol:
lv: data
vg: research
size: '800'
when: ansible_lvm.vgs.research.size_g < '1.5'
- name:
filesystem:
fstype: ext4
dev: /dev/research/data
:wq!
# ansible-playbook lvm.yml ---syntax-check
# ansible-playbook lvm.yml

Show Suggested Answer

Suggested Answer: A

by Elmira at Jul 08, 2024, 07:36 PM

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Lavonda

6 months ago

VG Not found message is a nice touch!

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Belen

6 months ago

Seems straightforward, but why no mounting?

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Leoma

6 months ago

Wait, can it really create an 800M LV if the 1500M fails?

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Diane

7 months ago

Agree, but what if the VG doesn't exist?

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Gail

7 months ago

Just a reminder, the LV size is set to 1500M.

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Britt

7 months ago

I definitely recall that we shouldn't mount the logical volume, but I can't remember if we need to specify the filesystem before creating the LV.

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Georgeanna

7 months ago

I feel a bit uncertain about the size checks. Did we use 'size_g' for the volume group size in our practice?

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Christiane

7 months ago

I think we had a similar question where we had to check for volume groups. I hope I can remember the conditionals correctly.

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Bernardo

8 months ago

I remember we practiced creating logical volumes, but I'm not sure about the exact syntax for the debug messages.

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Lonny

8 months ago

No problem, I've done this kind of thing before. I'll just follow the requirements step-by-step and make sure to handle the error cases as specified.

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Noah

8 months ago

This seems doable, but I'm a little worried about the formatting part. I'll need to double-check the filesystem module syntax to make sure I get that right.

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Kara

8 months ago

Okay, I think I've got a good handle on this. I'll create the LV in the 'research' VG, and if that VG doesn't exist or can't accommodate the size, I'll print the appropriate messages and create a smaller LV.

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Ailene

8 months ago

Hmm, I'm a bit confused about the conditional checks for the VG and LV size. I'll need to review the Ansible documentation on those modules.

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Raylene

8 months ago

This looks like a straightforward LVM task, but I'll need to be careful to handle the edge cases properly.

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Aliza

8 months ago

I'm not entirely sure about this one. The options all sound similar, but I think Option D might be the right answer since it mentions adjusting correlation search thresholds over time.

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Zoila

8 months ago

Hmm, this seems like a tricky one. I'll need to think through the DTMF options carefully.

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Marvel

2 years ago

The solution is on point! It's like the developer had a crystal ball and foresaw all the possible issues. Impressive work!

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Luke

2 years ago

Looks like a well-crafted playbook. I'm curious to see how it handles the case where the VG has just enough space for an 800M LV but not 1500M.

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Willow

2 years ago

Yes, it's good that it can adjust the LV size based on available space in the VG.

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Reuben

2 years ago

This playbook seems to have all the scenarios covered.

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Lura

2 years ago

This is a solid solution! The only thing I would suggest is to add a task to mount the LV, just in case the user wants to use it immediately.

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Afton

2 years ago

The solution is comprehensive and covers all the requirements. I wonder if there's a way to make the size more flexible, like accepting it as a parameter?

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Angella

2 years ago

I like how the solution uses the `debug` module to print informative messages. It's a nice way to provide feedback to the user.

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Samira

2 years ago

The solution uses the `lvol` module, which is a nice touch. It also checks for the existence of the VG and adjusts the LV size accordingly. Very well-thought-out!

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