Expand an XFS Filesystem

[oracle@ractw21 grid]$ df /u01
Filesystem                   1K-blocks       Used Available Use% Mounted on
/dev/mapper/ol_ractw21-u01    15718400    9869484   5848916  63% /u01
 
[root@ractw21 ~]# pvs
  PV         VG         Fmt  Attr PSize  PFree 
  /dev/sda2  ol_ractw21 lvm2 a--  49.00g 11.12g

[root@ractw21 ~]#  lvscan
  ACTIVE            '/dev/ol_ractw21/swap' [7.88 GiB] inherit
  ACTIVE            '/dev/ol_ractw21/root' [15.00 GiB] inherit
  ACTIVE            '/dev/ol_ractw21/u01' [15.00 GiB] inherit

Extent the Logical Volume
[root@ractw21 ~]# lvextend -L+8G /dev/ol_ractw21/u01
  Size of logical volume ol_ractw21/u01 changed from 15.00 GiB (3840 extents) to 23.00 GiB (5888 extents).
  Logical volume ol_ractw21/u01 successfully resized.

Finally grow the xhs filesystem
[root@ractw21 ~]#  xfs_growfs /dev/mapper/ol_ractw21-u01
meta-data=/dev/mapper/ol_ractw21-u01 isize=256    agcount=4, agsize=983040 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=0        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=3932160, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=0
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

[root@ractw21 ~]# df /u01
Filesystem                 1K-blocks    Used Available Use% Mounted on
/dev/mapper/ol_ractw21-u01  24107008 9871432  14235576  41% /u01