Exam EX200 topic 1 question 93 discussion

Actual exam question from RedHat's EX200

Question #: 93
Topic #: 1

SIMULATION -
Create a volume group, and set the size is 500M, the size of single PE is 16M. Create logical volume named lv0 in this volume group, set size is 20 PE, make it as ext3 file system, and mounted automatically under data.

Show Suggested Answer

Suggested Answer: See explanation below.
fdisk /dev/vda
pvcreate /dev/vda3
vgcreate ג€"s 16M vg0 /dev/vda3
lvcreate ג€"n lv0 ג€"l 20 vg0
mkfs.ext3 /dev/mapper/vg0-lv0
mkdir /data
/etc/fstab:
/dev/mapper/vg0-lv0 /data ext3 defaults 0 0
mount ג€"a
mount | grep data

by PENNSHARK at Jan. 12, 2024, 10:39 p.m.

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ly01

4 months, 3 weeks ago

sudo gdisk /dev/sdc sudo partprobe sudo pvcreate /dev/sdc4 sudo vgcreate vg0 --physicalextentsize 16M /dev/sdc4 sudo lvcreate vg0 --extents 20 --name lv0 sudo lvdisplay sudo mkfs.ext3 /dev/mapper/vg0-lv0 sudo mkdir /dataz tail -n1 /etc/fstab /dev/mapper/vg0-lv0 /dataz ext3 defaults 0 0 sudo systemctl daemon-reload sudo mount -a sudo findmnt | grep dataz

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gaven186

5 months ago

'vgcreate -s' is to specify the size of 'Physical Extent' of 16M, not the total disk size. 'lvcreate -l' specify 20 units of the extents, the requirement says LV named as 'lv0'. after LV has created, there is no '/dev/mapper/'.

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PENNSHARK

10 months, 3 weeks ago

pvcreate /dev/nvme1n1 vgcreate -s 500M VGEX /dev/nvme1n1 lvcreate -n lvex -L 320M VGEX mkfs.ext3 /dev/VGEX/lvex mkdir /mnt/data echo “/dev/mapper/VGEX-lvex /mnt/data ext3 defaults 0 0” >> /etc/fstab mount -a mount

upvoted 1 times

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