265d96bed1
Fixed Patchset 4 comments Fixed Patchset 3 comments and added additional updates Signed-off-by: Juanita-Balaraj <juanita.balaraj@windriver.com> Change-Id: I7482afc3a90bbdc94b6ecd8b6ac39d831b8a45db Signed-off-by: Juanita-Balaraj <juanita.balaraj@windriver.com>
2.1 KiB
2.1 KiB
Disk Naming Conventions
uses persistent disk names to simplify hardware management.
In addition to the device node identification commonly used in Linux systems (for example, /dev/sda), identifies hardware storage devices by physical location (device path). This ensures that the system can always identify a given disk based on its location, even if its device node enumeration changes because of a hardware reconfiguration. This helps to avoid the need for a system re-installation after a change to the disk complement on a host.
In the Horizon Web interface and in output, both identifications are
shown. For example, the output of the system host-disk-show command includes both the
device_node and the device_path.
~(keystone_admin)]$ system host-disk-show controller-0
1722b081-8421-4475-a6e8-a26808cae031
+-------------+--------------------------------------------+
| Property | Value |
+-------------+--------------------------------------------+
| device_node | /dev/sda |
| device_num | 2048 |
| device_type | HDD |
| device_path | /dev/disk/by-path/pci-0000:00:0d.0-ata-2.0 |
| size_gib | 120 |
| rpm | Undetermined |
| serial_id | VB77269fb1-ae169607 |
| uuid | 1722b081-8421-4475-a6e8-a26808cae031 |
| ihost_uuid | 78c46728-4108-4b35-8081-bed1bd4cba35 |
| istor_uuid | None |
| ipv_uuid | 2a7e7aad-6da5-4a2d-957c-058d37eace1c |
| created_at | 2017-05-05T07:56:02.969888+00:00 |
| updated_at | 2017-05-08T12:27:04.437818+00:00 |
+-------------+--------------------------------------------+