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Healthcare custody technical note

Healthcare RAID recovery can begin while the drives remain onsite.

The failed server does not need to boot, the volume does not need to mount, and the failed array does not need to be brought online before ADR can begin evaluating the member state. When the drives can be labeled, connected independently, and read safely, the client can retain custody while protected images and reconstruction evidence are developed.

This is case-dependent. Member stability, available hardware, security controls, usable destination capacity, and the failure history determine whether work can proceed onsite or whether a specific member requires laboratory attention.

See the controlled recovery model Healthcare recovery paths

A different recovery environment

The failed server is evidence. It does not have to become the recovery workstation.

Depending on the case, members may be connected to a suitable bootable computer through direct SATA/SAS hardware, supported adapters, or a controlled multi-bay environment. ADR evaluates source readability, creates protected images when appropriate, determines array geometry, and reconstructs from those protected sources.

Independent accessEach member is identified and examined outside controller automationThis avoids requiring the original controller to import, initialize, or bring the failed array online.
Protected imagingReadable members are copied to suitable destination storage before reconstructionSource condition, errors, and image provenance remain documented.
Geometry determinationMember order, offsets, stripe size, parity rotation, and subgroup relationships are evaluatedReconstruction is based on observed evidence rather than an assumed controller state.
Logical recoveryVolumes, filesystems, VMs, databases, and repositories are recovered from protected sourcesThe original failed environment remains outside the reconstruction path.

When onsite custody fits

The decision follows source condition—not a blanket remote-versus-lab rule.

A case may begin onsite even when the server is offline. The limiting question is whether the relevant sources can be accessed and protected without exposing them to avoidable writes or unstable repeated reads.

  1. 1

    Stable, independently readable members

    ADR can guide source identification, protected imaging, geometry analysis, and reconstruction while the drives remain under client control.

  2. 2

    An unstable or unreadable member

    Stop repeated reads. That member may require targeted firmware, electronics, mechanical, or specialist work before a trustworthy image can be produced.

  3. 3

    Database or repository failure above stable storage

    Preserve the complete file, log, backup, export, VM, and repository set before attachment, repair, or extraction.

  4. 4

    Security or infrastructure constraints

    Confirm approved access, encryption, destination storage, network controls, staffing, and chain-of-custody requirements before work begins.

Choose the controlled path

Keep the full array onsite when the evidence supports it. Escalate only what requires escalation.

Primary pathBegin outside the failed server and controllerLabel members, establish independent access, protect readable sources, determine geometry, and reconstruct from copies.Review ADR’s recovery model → Client-custody recoveryThe sources are stable enough for protected onsite workReview access, hardware, destination, staffing, and security requirements with a technician.Review the onsite path → Targeted escalationA member cannot be imaged safely in the onsite environmentEscalate the affected member or case component after evaluation rather than automatically shipping every drive.Review the laboratory path → Healthcare applicationThe storage is only one part of the unavailable clinical or practice systemRoute the case by the patient, database, EMR, dental, imaging, or repository object staff cannot access.Choose the healthcare failure →

Need to keep the drives onsite?

ADR can evaluate the failure and define the recovery environment before anything ships.

Provide the server, controller, enclosure, number and size of drives, displayed errors, actions already taken, available connection hardware and destination capacity, required healthcare data, and custody constraints.

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