Create New File System on Linux Machine

 

Add new disk to Server

[root@ggtarget u01]# ls -ltrha /dev/sd*
brw-rw----. 1 root disk 8, 0 Aug 13 02:08 /dev/sda
brw-rw----. 1 root disk 8, 2 Aug 13 02:08 /dev/sda2

brw-rw----. 1 root disk 8, 1 Aug 13 02:08 /dev/sda1
brw-rw----. 1 root disk 8, 16 Aug 13 02:08 /dev/sdb
brw-rw----. 1 root disk 8, 32 Aug 13 02:08 /dev/sdc

[root@ggtarget u01]# lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsdb 8:16 0 30G 0 disk
sr0 11:0 1 1024M 0 rom
sdc 8:32 0 30G 0 disk ======>>> NEWLY ADDED DISK
sda 8:0 0 50G 0 disk
├─sda2 8:2 0 49G 0 part
│ ├─ol-swap 252:1 0 4G 0 lvm [SWAP]
│ ├─ol-tmp 252:2 0 7G 0 lvm /tmp
│ ├─ol-root 252:0 0 10G 0 lvm /
│ └─ol-u01 252:3 0 28G 0 lvm /u01
└─sda1 8:1 0 1G 0 part /boot

Create a partition of a newly added disk

[root@ggtarget u01]# fdisk /dev/sdc

Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x0c577db8.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):p
Using default response p
Partition number (1-4, default 1):1
First sector (2048-62914559, default 2048): 2048
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-62914559, default 62914559):62914559
Using default value 62914559
Partition 1 of type Linux and of size 30 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.

[root@ggtarget u01]# lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sdb 8:16 0 30G 0 disk
sr0 11:0 1 1024M 0 rom
sdc 8:32 0 30G 0 disk
└─sdc1 8:33 0 30G 0 part ==> THIS
sda 8:0 0 50G 0 disk
├─sda2 8:2 0 49G 0 part
│ ├─ol-swap 252:1 0 4G 0 lvm [SWAP]
│ ├─ol-tmp 252:2 0 7G 0 lvm /tmp
│ ├─ol-root 252:0 0 10G 0 lvm /
│ └─ol-u01 252:3 0 28G 0 lvm /u01
└─sda1 8:1 0 1G 0 part /boot

Create and Mount the File-System

[root@ggtarget u01]# mkfs.xfs /dev/sdc1

meta-data=/dev/sdc1 isize=256 agcount=4, agsize=1966016 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0, sparse=0
data = bsize=4096 blocks=7864064, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=3839, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0

[root@ggtarget u01]# blkid /dev/sdc1

/dev/sdc1: UUID="a8e2c27e-9618-43a3-999f-097819144ec3" TYPE="xfs"

[root@ggtarget u01]# mkdir /u02

[root@ggtarget u01]# mount -t xfs /dev/sdc1 /u02

[root@ggtarget u01]# df -h /u02
Filesystem Size Used Avail Use% Mounted on
/dev/sdc1 30G 33M 30G 1% /u02

Add an entry to fstab

[root@ggtarget u01]# cat /etc/fstab | grep u02

UUID="a8e2c27e-9618-43a3-999f-097819144ec3" /u02 xfs defaults        0 0

[root@ggtarget u01]#

[root@ggtarget u01]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sdb 8:16 0 30G 0 disk
sr0 11:0 1 1024M 0 rom
sdc 8:32 0 30G 0 disk
└─sdc1 8:33 0 30G 0 part /u02 ==>THIS
sda 8:0 0 50G 0 disk
├─sda2 8:2 0 49G 0 part
│ ├─ol-swap 252:1 0 4G 0 lvm [SWAP]
│ ├─ol-tmp 252:2 0 7G 0 lvm /tmp
│ ├─ol-root 252:0 0 10G 0 lvm /
│ └─ol-u01 252:3 0 28G 0 lvm /u01
└─sda1 8:1 0 1G 0 part /boot