Discover and assemble arrays based on metadata or config.

Section: RAID and Encryption

Assemble an existing array

bash
bash
sudo mdadm --assemble --scan
Explanation

Discover and assemble arrays based on metadata or config.

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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.
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Show array details
Inspect RAID level, members, and rebuild progress.
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Examine RAID metadata on members
Inspect md superblock metadata directly on a member device.
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Stop an array
Stop a software RAID device before disassembly or recovery work.
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Generate mdadm.conf array entries
Persist discovered arrays into mdadm configuration.
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Create a RAID1 array
Create a mirrored software RAID device.
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