LINUX: How to Create XFS Filesystem on Linux Hosts?

LINUX: How to Create XFS Filesystem on Linux Hosts?

Below are steps to create XFS filesystem on Linux hosts.

1) Attach the Disk to the Linux Host

2) Verify that the attached disk is shown.

ls -lrt /dev/

It should be shown as sdb

Please note that the name for attached disk may vary. If you are attaching the 2nd disk it will show as sbd, lets assume you are attaching one more disk and creating filesystem is will show as sdc, and any further disks attached it will show as sdd, sde .. and so on.

3) Create partition for attached / extended disk as follows:

sudo fdisk /dev/sdb

Enter inputs in fdisk console prompts as follows as highlighted in bold.

# sudo fdisk /dev/sdb

Welcome to fdisk (util-linux 2.32.1).

Changes will remain in memory only, until you decide to write them.

Be careful before using the write command.

Command (m for help): n >>>>> enter n here for new partition

Partition type

   p   primary (0 primary, 0 extended, 4 free)

   e   extended (container for logical partitions)

Select (default p): p   >>>>> enter p here as primary partition

Partition number (1-4, default 1): 1    >>>> enter partition number as 1

First sector (2048-251658239, default 2048):  >>> just enter go with defaults

Last sector, +sectors or +size{K,M,G,T,P} (2048-251658239, default 251658239):  >>>> just enter go with defaults

Created a new partition 1 of type 'Linux' and of size 120 GiB.

Command (m for help): p >>>>> enter p here to print partition.

Disk /dev/sdb: 120 GiB, 128849018880 bytes, 251658240 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: 0x004734fb

Device     Boot Start       End   Sectors  Size Id Type

/dev/sdb1        2048 251658239 251656192  120G 83 Linux

Command (m for help): w    >>>> enter w to write and save the changes.

The partition table has been altered.

Calling ioctl() to re-read partition table.

Syncing disks.

4) Format the created partition as xfs using below command.

sudo mkfs.xfs -f /dev/sdb1

Below is sample command output you see when running above command.

meta-data=/dev/sdb1              isize=512    agcount=4, agsize=7864256 blks

         =                       sectsz=512   attr=2, projid32bit=1

         =                       crc=1        finobt=1, sparse=1, rmapbt=0

         =                       reflink=1

data     =                       bsize=4096   blocks=31457024, imaxpct=25

         =                       sunit=0      swidth=0 blks

naming   =version 2              bsize=4096   ascii-ci=0, ftype=1

log      =internal log           bsize=4096   blocks=15359, version=2

         =                       sectsz=512   sunit=0 blks, lazy-count=1

realtime =none                   extsz=4096   blocks=0, rtextents=0

5) Create a directory on which you want to mount the xfs partition. For e.g. lets assume apps

mkdir /apps

6) Mount the newly created xfs partition using below command.

sudo mount -t xfs /dev/sdb1 /apps

7) Run "df -Th" command and verify that the partition is mounted as xfs filesystem. Below is snippet.

/dev/sdb1           xfs       120G  889M  120G   1% /apps

8) Update /etc/fstab and add below entry to have newly created xfs partition automounted during the reboot.

/dev/sdb1  /apps xfs  defaults  0  0

9) Reboot the node. After the reboot you would notice that the XFS filesystem is auto mounted.