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.
Due to a limitation in udev, the device path of a disk connected through a SAS controller changes when the disk is replaced. Therefore, in the general procedure below, you must lock, delete, and re-install the node. However, for standard, AIO-SX, and AIO-DX systems, use the following alternative procedures to replace OSDs without reinstalling the host:
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.