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Last active November 8, 2019 18:35
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Resize EBS volume
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resize_ebs_volume.md

Resize AWS EBS Disk partition

The following commands are rquiered to expoand a partition and resize the file system of an EBS volume. Those steps work in EBS volumes including root volumes and can be done while they are attached to a running instance (zero downtime)

Check the size of the partition

df -H

Check partition table

lsblk

Expand partition

Skip this step if the disk has no partitions (e.g. /dev/xvdf)

sudo growpart /dev/xvda 1

Check partition table after expansion

lsblk

Resize filesystem

Use xfs_growfs for XFS partitions (common in RHEL)

sudo resize2fs /dev/xvda1

Check the size of the partition after resizing

df -H
@damaya
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damaya commented Aug 16, 2017

It works, may be in some ubuntu versions, you should skip to step on line 20, i.e sudo resize2fs /dev/xvdf

@cangulo21
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If the disk has no partitions the growpart command is not necessary. See rancher/rancher#10203

@mauricios
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If the disk has no partitions the growpart command is not necessary. See [rancher/rancher#10203](rancher/rancher#102

Thanks, message added to the steps.

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