RedHat EX200 Exam - Topic 7 Question 93 Discussion

Actual exam question for RedHat's EX200 exam

Question #: 93
Topic #: 7

Part 2 (on Node2 Server)

Task 6 [Implementing Advanced Storage Features]

Add a new disk to your virtual machine with a ize of 10 GiB

On this disk, create a VDO volume with a size of 50 GiB and mount it persistently on /vbread with xfs filesystem

AExplanation:
*
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vdd 252:48 0 5G 0 disk
vde 252:64 0 10G 0 disk
[root@node2 ~]# yum install kmod-kvdo vdo
[root@node2 ~]# systemctl enable --now vdo
[root@node2 ~]# systemctl start vdo
[root@node2 ~]# systemctl status vdo
[root@node2 ~]# vdo create --name=vdo1 --device=/dev/vde --vdoLogicalSize=50G
[root@node2 ~]# vdostats --hu
Device Size Used Available Use% Space saving%
/dev/mapper/vdo1 10.0G 4.0G 6.0G 40% N/A
[root@node2 ~]# mkfs.xfs -K /dev/mapper/vdo1
*
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vde 252:64 0 10G 0 disk
vdo1 253:4 0 50G 0 vdo
[root@node2 ~]# mkdir /vbread
[root@node2 ~]# blkid
/dev/mapper/vdo1: UUID='1ec7a341-6051-4aed-8a2c-4d2d61833227' BLOCK_SIZE='4096' TYPE='xfs'
[root@node2 ~]# vim /etc/fstab
UUID=1ec7a341-6051-4aed-8a2c-4d2d61833227 /vbread xfs defaults,x-systemd.requires=vdo.service 0 0
[root@node2 ~]# mount /dev/mapper/vdo1 /vbread/
[root@node2 ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vdo1 xfs 50G 390M 50G 1% /vbread

Show Suggested Answer

Suggested Answer: A

by Carissa at Jul 06, 2024, 05:19 PM

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Anglea

4 months ago

I’m not sure about this... seems a bit too good to be true.

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Melodie

5 months ago

Totally agree, VDO is a game changer for managing space!

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Tequila

5 months ago

Wait, you can create a 50 GiB volume on a 10 GiB disk? How does that work?

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Jade

5 months ago

That’s cool! VDO really helps with storage efficiency.

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Fidelia

5 months ago

Just added a 10 GiB disk and created a VDO volume!

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Veronika

6 months ago

I recall a similar question where we had to set up a filesystem, but I can't remember if we used `vim` for editing fstab or if there was another editor we preferred.

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Selma

6 months ago

I feel confident about the `mkfs.xfs` command, but I’m a bit uncertain about how to ensure the mount point is persistent.

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Tawna

6 months ago

I think the `vdo create` command is crucial here, but I might mix up the parameters. Did we use `--device` and `--vdoLogicalSize` in the same way?

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Loise

6 months ago

I remember we practiced adding disks in our lab, but I’m not completely sure about the exact commands for creating the VDO volume.

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Vernell

6 months ago

Whoa, a lot of commands to remember here. Gotta make sure I don't miss any of the crucial steps.

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Noemi

6 months ago

Okay, I think I got this. Add the new disk, create the VDO volume, format it with XFS, and mount it. Shouldn't be too bad.

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Junita

6 months ago

Hmm, not sure about this VDO volume thing, never worked with that before. Might need to do some research first.

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Anika

6 months ago

This looks like a pretty straightforward task, just need to follow the steps carefully.

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Graciela

6 months ago

This is the kind of task I feel pretty confident about. I'll just take it step-by-step and I'm sure I can get it done.

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Aliza

6 months ago

I'm not sure about this one. The question seems to be asking about jurisdiction, but I'm a bit confused on the details.

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Elli

6 months ago

Based on the details provided, I think the Laurin sports shoes would be considered a shopping product. Tamika went to multiple stores to find the right pair, which fits the definition of a shopping product.

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Gilma

6 months ago

I'm leaning towards true since assertions are usually lightweight, but I'm not entirely confident about the verification needing a remote system.

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Angelica

6 months ago

Hmm, I'm not sure about a video sharing website. That doesn't seem like a practical use case for Blockchain. I'll have to think this through carefully.

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Cherrie

2 years ago

Haha, the VDO volume 'vdo1' sounds like a futuristic robot sidekick. Let's hope it doesn't go rogue and start demanding more storage space!

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Marcelle

2 years ago

Hopefully it stays loyal and doesn't cause any storage wars!

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Latrice

2 years ago

Yeah, I can imagine it saying 'I require more storage space, human!'

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Lina

2 years ago

Haha, 'vdo1' does sound like a cool robot sidekick!

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Rosalind

2 years ago

Nice! The use of the systemd dependency to ensure the vdo service is running is a clever way to handle the mounting. This question really tests our system administration skills.

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