Adding Disks to file system

Describes how to add disks using either the Control System or the CLI.

About this task

You can add disks to file system using the Control System and the CLI. Before adding the disks to file system, add the physical disks to the node or nodes according to the correct hardware procedure.

  • If you are removing and replacing failed disks, you must install the replacements, then re-add the replacement disks to file system, along with the other disks that were in the same storage pool(s) as the failed disks. See Handling Disk Failures for more details.
  • If you are removing disks but not replacing them, you can just re-add the other disks that were in the same storage pool(s) as the failed disks.
NOTE
Disks must be added on CLDB nodes one node at a time when Warden and HPE Ezmeral Data Fabric services are running.
ATTENTION
Disable write caching on all HPE Ezmeral Data Fabric disks if the disks are not battery backed.

Adding Disks Using the Control System

About this task

Complete the following steps to add disks of type file system using the Control System:

Procedure

  1. Log in to the Control System and go to the Summary tab in the node information page.
    NOTE
    The Nodes page is not available on the Kubernetes version of the Control System.
  2. Select the disks not yet added to file system in the Disks pane and click Add Disks to File System.
    The Add Disks to File System confirmation dialog displays.
    NOTE
    You cannot select disks of type System to add.
  3. Review the list and click Add Disk.
    The disks are automatically formatted and properly-sized storage pools are automatically allocated.

Adding Disks Using the CLI or REST API

About this task

The basic command to add disks to a node is:

maprcli disk add -disks <disk names> -host <host>
NOTE
This step reformats the disks. Any data on these disks will be lost.

For complete reference information, see disk add.