Replace OSDs and Journal Disks

You can replace failed storage devices on storage nodes.

About this task

For best results, ensure the replacement disk is the same size as others in the same peer group. Do not substitute a smaller disk than the original.

Note

Due to a limitation in udev, the device path of a disk connected through a SAS controller changes when the disk is replaced. Therefore, the general procedure below works for controller and storage nodes.

For standard, AIO-SX, and AIO-DX systems, use the following alternative procedures to replace OSDs without reinstalling the host:

• Replace OSDs on a Standard System

• Replace OSDs on an AIO-DX System

• Replace OSDs on an AIO-SX Multi-Disk System

• Replace ODSs on an AIO-SX Single Disk System without Backup

• Replace OSDs on an AIO-SX Single Disk System with Backup

Procedure

Follow the procedure located at StarlingX Node Configuration and Management: Change Hardware Components for a Storage Host.

The replacement disk is automatically formatted and updated with data when the storage host is unlocked.