Discover and assemble arrays based on metadata or config.
Section: RAID and Encryption
Assemble an existing array
bash
bash
sudo mdadm --assemble --scanExplanation
Discover and assemble arrays based on metadata or config.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing RAID and Encryption
Show active MD arrays
Quick view of RAID sync, rebuild, and degraded state.
Examine RAID metadata on members
Inspect md superblock metadata directly on a member device.
Stop an array
Stop a software RAID device before disassembly or recovery work.
Generate mdadm.conf array entries
Persist discovered arrays into mdadm configuration.