Exam EX200 Topic 4 Question 64 Discussion

Actual exam question for RedHat's EX200 exam
Question #: 64
Topic #: 4

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

Suggested Answer:

* [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

by whitebeard pirate at Dec 21, 2024, 04:07 AM

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Comments

whitebeard pirate

2024-12-21 04:07:36

#shutdown VM and create a 10gb disk using ISCI or IDE controller if not already created
#verify the newly attached disk eg sdc
lsblk
dnf -y install vdo kmod-kvdo xfsprogs
vdo create --name vdo1 --device /dev/sdc --vdologicalsize 50G
vdo status (to confirm the vdo and path, usually /dev/mapper/vdo1)
mkfs.xfs /dev/mapper/vdo1
mkdir -p /vbread
mount /dev/mapper/vdo1 /vbread
blkid /dev/mapper/vdo1 (get UUID)
nano /etc/fstab
add: UUID=XXXXXXXX /vbread xfs defaults 0 0
or UUID=XXXXXXXX /vbread xfs defaults,x-systemd.requires=vdo.service 0 0

upvoted 1 times

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