RedHat Exam EX200 Topic 8 Question 105 Discussion

Actual exam question for RedHat's EX200 exam

Question #: 105
Topic #: 8

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:
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[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
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[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 Lorenza at Dec 08, 2024, 08:58 AM

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11 days ago

Hmm, the part about setting the logical size of the VDO volume to 50 GiB is interesting. I wonder if that's a common practice or if there's a specific reason for that.

upvoted 0 times

Ellsworth

6 days ago

User1: I think setting the logical size of the VDO volume to 50 GiB is common practice.

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Rozella

12 days ago

I agree, but the explanation provided seems clear.

upvoted 0 times

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Luis

15 days ago

I think this task is quite challenging.

upvoted 0 times

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Alverta

19 days ago

Wow, this is a really comprehensive solution! Creating a VDO volume and mounting it with the XFS filesystem is impressive. I like how the instructions cover everything from installing the required packages to updating the fstab file.

upvoted 0 times

Carin

7 days ago

Thanks! Yes, the step-by-step guide makes it easy to follow.

upvoted 0 times

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