docs/doc/source/storage/kubernetes/increase-the-size-of-a-partition.rst

Increase the Size of a Partition

You can increase the size of a partition using the system host-disk-partition-modify command.

You can modify only the last partition on a disk (indicated by part in the device path; for example, /dev/disk/by-path/pci-0000:00:0d.0-ata-2.0-part6).

You cannot decrease the size of a partition.

The syntax for the command is:

system host-disk-partition-modify -s <size> <host> <partition>

where:

<size>

is the new partition size in MiB.

<host>

is the host name or ID.

<partition>

is the partition device path or UUID.

#. For example, to change the size of a partition on compute-1 to 726 MiB, do

the following:

~(keystone_admin)]$ system host-disk-partition-modify -s 726 compute-1 a259e898-6390-44ba-a750-e0cb1579d8e0
+-------------+--------------------------------------------------+
| Property    | Value                                            |
+-------------+--------------------------------------------------+
| device_path | /dev/disk/by-path/pci-0000:00:0d.0-ata-2.0-part6 |
| device_node | /dev/sdb6                                        |
| type_guid   | ba5eba11-0000-1111-2222-000000000001             |
| type_name   | LVM Physical Volume                              |
| start_mib   | 512                                              |
| end_mib     | 12545                                            |
| size_mib    | 726                                              |
| uuid        | a259e898-6390-44ba-a750-e0cb1579d8e0             |
| ihost_uuid  | 3b315241-d54f-499b-8566-a6ed7d2d6b39             |
| idisk_uuid  | fcd2f59d-c9ee-4423-9f57-e2c55d5b97dc             |
| ipv_uuid    | None                                             |
| status      | Modifying                                        |
| created_at  | 2017-09-08T19:10:27.506768+00:00                 |
| updated_at  | 2017-09-08T19:15:06.016996+00:00                 |
+-------------+--------------------------------------------------+