EX200 Configure local storage — All Questions With Answers

Refer to the exhibit.

# lsblk -o NAME,SIZE,FSTYPE,MOUNTPOINT
NAME          SIZE FSTYPE MOUNTPOINT
sda           10G
├─sda1         1G xfs    /boot
└─sda2         9G LVM2_member
  ├─vg-lv_root 8G xfs    /
  └─vg-lv_swap 1G swap   [SWAP]
sdb            5G
└─sdb1         5G LVM2_member
  └─vg-lv_data 5G xfs    /data
sdc            2G
sdd            2G

# lsblk
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda             8:0    0   20G  0 disk
├─sda1          8:1    0    1G  0 part /boot
└─sda2          8:2    0   19G  0 part
  ├─rhel-root 253:0    0   17G  0 lvm  /
  └─rhel-swap 253:1    0    2G  0 lvm  [SWAP]
sdb             8:16   0   10G  0 disk
└─sdb1          8:17   0   10G  0 part

# mount | grep /dev/mapper
/dev/mapper/data-lv on /data type xfs (rw,noexec,relatime,seclabel,attr2,inode64,noquota)

# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda
#
UUID=abc123 /                       xfs     defaults        0 0
UUID=def456 /boot                   ext4    defaults        1 2
/dev/mapper/rhel-swap swap          swap    defaults        0 0

NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda      8:0    0   20G  0 disk
├─sda1   8:1    0  500M  0 part /boot
├─sda2   8:2    0    2G  0 part [SWAP]
├─sda3   8:3    0   10G  0 part /
└─sda4   8:4    0  7.5G  0 part /home
sdb      8:16   0   10G  0 disk
└─sdb1   8:17   0   10G  0 part

Personalities : [raid1] [raid0] [raid10] 
md0 : active raid1 sdb1[1] sda1[0]
      10485760 blocks super 1.2 [2/2] [UU]
      
unused devices: <none>

Refer to the exhibit.

# lsblk
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda             8:0    0   10G  0 disk
├─sda1          8:1    0    1G  0 part /boot
├─sda2          8:2    0    8G  0 part
│ └─vg01-root 253:0    0    8G  0 lvm  /
└─sda3          8:3    0    1G  0 part [SWAP]
sdb             8:16   0  100G  0 disk
└─sdb1          8:17   0  100G  0 part
  └─vg01-data 253:1    0  100G  0 lvm  /data

Refer to the exhibit.

# df -h /data
Filesystem      Size  Used Avail Use% Mounted on
/dev/mapper/vg01-data  100G   99G  1.0G  99% /data

# cat /etc/fstab
/dev/mapper/vg01-data /data xfs defaults 0 0

# lsblk /dev/sdb
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sdb       8:16   0  150G  0 disk
└─sdb1    8:17   0  150G  0 part
  └─vg01-data 253:1  0  100G  0 lvm  /data

# vgs
  VG   #PV #LV #SN Attr   VSize   VFree
  vg01   1   1   0 wz--n- 150.00g 50.00g

Refer to the exhibit.

# mount | grep /dev/sdc1
/dev/sdc1 on /mnt/backup type ext4 (rw,noexec,nosuid)

# cat /etc/fstab | grep sdc1
UUID=12345678-9abc-def0-1234-56789abcdef0 /mnt/backup ext4 defaults 0 0

# df -h /mnt/backup
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdc1       100G   50G   50G  50% /mnt/backup

Refer to the exhibit.

[root@server ~]# lsblk
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda             8:0    0   20G  0 disk 
├─sda1          8:1    0    1G  0 part /boot
└─sda2          8:2    0   19G  0 part 
  ├─rhel-root 253:0    0   17G  0 lvm  /
  └─rhel-swap 253:1    0    2G  0 lvm  [SWAP]
sdb             8:16   0   10G  0 disk 
└─sdb1          8:17   0   10G  0 part 
  └─mydata-vg-mydata-lv 253:2    0   10G  0 lvm  /data
sdc             8:32   0   10G  0 disk

# fdisk -l /dev/sdb
Disk /dev/sdb: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x12345678

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 20971519 20969472  10G 83 Linux

# blkid /dev/sdb1
/dev/sdb1: UUID="abc123" TYPE="xfs"

# cat /etc/fstab | grep sdb
UUID=abc123 /data xfs defaults 0 0

# mount | grep data
/dev/sdb1 on /data type xfs (rw,relatime,seclabel,attr2,inode64,noquota)

# df -h /data
Filesystem      Size  Used Avail Use% Mounted on
/dev/mapper/vg00-lv_data
                5.0G  3.9G  1.1G  79% /data

# lvextend -L +2G /dev/vg00/lv_data
  Size of logical volume vg00/lv_data changed from 5.00 GiB to 7.00 GiB.
  Logical volume vg00/lv_data successfully resized.

# df -h /data
Filesystem      Size  Used Avail Use% Mounted on
/dev/mapper/vg00-lv_data
                5.0G  3.9G  1.1G  79% /data

# cat /etc/fstab | grep data
/dev/mapper/vg00-lv_data /data xfs defaults 0 0

# parted /dev/sdc print
Model: VMware Virtual disk (scsi)
Disk /dev/sdc: 2147MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name     Flags
 1      1049kB  2147MB  2146MB  xfs          primary

# mount /dev/sdc1 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error.