Filesystem Doesn't Reflect Instance Resize (Ephemeral)

Problem

An OpenStack instance, leveraging an ephemeral, non-boot-from-volume disk for its root partition, has been resized, but, the file system does not reflect the increased size (e.g. according to the**df** output).

Environment

• Platform9 Managed OpenStack - All Versions

• Nova

Cause

The respective filesystem has yet to be expanded within the guest OS.

Resolution

Ext2/3/4

1. Leverage the resize2fs utility to resize the EXT filesystem.

- If the root partition is provisioned using LVM, you may need to expand the associated LV and then specify the path to it on the filesystem, e.g.

XFS

1. Leverage the xfs_growfs utility to resize the XFS filesystem.