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- First of all, create a snapshot of your EBS volume. Then out of that snapshot you will be able to create your new volume.
- However, when you detach the old one from your instance and attach the new one, you will still see the old available space with `df`
- look at my `/dev/xvdf/` available space (after mounting the new EBS volume)
- ```
- ubuntu@ip-10-47-167-74:~$ df -h
- Filesystem Size Used Avail Use% Mounted on
- /dev/xvda1 16G 5.9G 9.1G 40% /
- udev 7.4G 12K 7.4G 1% /dev
- tmpfs 1.5G 176K 1.5G 1% /run
- none 5.0M 0 5.0M 0% /run/lock
- none 7.4G 0 7.4G 0% /run/shm
- /dev/xvdf 20G 19G 1.7G 92% /media/ebs/data <<< this one
- ```
- still 20G, I mounted a 80G one!
- This drive has been formatted to use an `xfs` file system. In order to resize it, this is the command I used:
- ```
- sudo xfs_growfs -d /media/ebs/data
- ```
- output should be something like this
- ```
- ubuntu@ip-10-47-167-74:~$ sudo xfs_growfs -d /media/ebs/data
- meta-data=/dev/xvdf isize=256 agcount=4, agsize=1310720 blks
- = sectsz=512 attr=2
- data = bsize=4096 blocks=5242880, imaxpct=25
- = sunit=0 swidth=0 blks
- naming =version 2 bsize=4096 ascii-ci=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
- data blocks changed from 5242880 to 20971520
- ```
- now let's see the `df -h` output
- ```
- ubuntu@ip-10-47-167-74:~$ df -h
- Filesystem Size Used Avail Use% Mounted on
- /dev/xvda1 16G 5.9G 9.1G 40% /
- udev 7.4G 12K 7.4G 1% /dev
- tmpfs 1.5G 176K 1.5G 1% /run
- none 5.0M 0 5.0M 0% /run/lock
- none 7.4G 0 7.4G 0% /run/shm
- /dev/xvdf 80G 19G 62G 23% /media/ebs/data
- ```
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