Wednesday, June 17, 2020

How to extend Linux file system after increasing my EBS volume on my EC2 instance



How to extend Linux file system after increasing my EBS volume on my EC2 instance


[root@anurag ~]#
[root@anurag ~]#
[root@anurag ~]# lsblk
NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda    202:0    0  10G  0 disk
├─xvda1 202:1    0   1M  0 part
└─xvda2 202:2    0  10G  0 part /
xvdb    202:16   0  20G  0 disk /u01/oracle
xvdc    202:32   0  20G  0 disk /u01/oradata
xvdd    202:48   0   8G  0 disk /u01/FRA
[root@anurag ~]#
[root@anurag ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           1.9G     0  1.9G   0% /dev/shm
tmpfs           1.9G   17M  1.9G   1% /run
tmpfs           1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/xvda2       10G  4.3G  5.7G  44% /
/dev/xvdc       7.9G  5.8G  1.7G  78% /u01/oradata
/dev/xvdd       7.9G  1.5G  6.0G  20% /u01/FRA
/dev/xvdb       7.9G  7.4G     0 100% /u01/oracle
tmpfs           378M     0  378M   0% /run/user/1002
tmpfs           378M     0  378M   0% /run/user/1000
[root@anurag ~]#
[root@anurag ~]#
[root@anurag ~]# resize2fs /dev/xvdb
resize2fs 1.45.4 (23-Sep-2019)
Filesystem at /dev/xvdb is mounted on /u01/oracle; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 3
The filesystem on /dev/xvdb is now 5242880 (4k) blocks long.

[root@anurag ~]#
[root@anurag ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           1.9G     0  1.9G   0% /dev/shm
tmpfs           1.9G   17M  1.9G   1% /run
tmpfs           1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/xvda2       10G  4.3G  5.7G  44% /
/dev/xvdc       7.9G  5.8G  1.7G  78% /u01/oradata
/dev/xvdd       7.9G  1.5G  6.0G  20% /u01/FRA
/dev/xvdb        20G  7.5G   12G  40% /u01/oracle
tmpfs           378M     0  378M   0% /run/user/1002
tmpfs           378M     0  378M   0% /run/user/1000
[root@anurag ~]#
[root@anurag ~]# resize2fs /dev/xvdc
resize2fs 1.45.4 (23-Sep-2019)
Filesystem at /dev/xvdc is mounted on /u01/oradata; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 3
The filesystem on /dev/xvdc is now 5242880 (4k) blocks long.

[root@anurag ~]#
[root@anurag ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
devtmpfs        1.9G     0  1.9G   0% /dev
tmpfs           1.9G     0  1.9G   0% /dev/shm
tmpfs           1.9G   17M  1.9G   1% /run
tmpfs           1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/xvda2       10G  4.3G  5.7G  44% /
/dev/xvdc        20G  5.8G   14G  31% /u01/oradata
/dev/xvdd       7.9G  1.5G  6.0G  20% /u01/FRA
/dev/xvdb        20G  7.5G   12G  40% /u01/oracle
tmpfs           378M     0  378M   0% /run/user/1002
tmpfs           378M     0  378M   0% /run/user/1000
[root@anurag ~]#
[root@anurag ~]#

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