L3-CDH-STOR-RAID
ESSENTIAL
COMMAND CONTROL
Level 3 · hardware
Storage Redundancy System
RAID-Like Distributed Storage with Error Recovery
Distributed redundant storage spreading data across multiple physical devices for fault tolerance
Purpose
Distributed redundant storage spreading data across multiple physical devices for fault tolerance
Context
Child of L2-CDH-STOR
Principles
- ▸RAID-5/6 equivalent parity distribution enables recovery from 1-2 device failures
- ▸Geographic distribution across Ark modules protects against localized damage
- ▸Automatic rebuild reconstructs data on replacement device after failure
- ▸Storage scrubbing periodically reads and verifies all stored data
Typical implementations
- ▸CERN CASTOR/EOS distributed storage for physics data
- ▸NASA ESDS (Earth Science Data Systems) distributed archive
- ▸ZFS/Btrfs self-healing storage concepts adapted for space
Lunar considerations
- ▸Physical distribution across Ark modules provides protection against MMOD damage
- ▸Rebuild after device failure consumes power and bandwidth - must be scheduled
- ▸100-year mission will see multiple complete storage technology generations
Specifications
Functional
| primary function | Distributed redundant storage spreading data across multiple physical devices for fault tolerance |
Physical
| materials | Multiple independent storage modules, Interconnect fabric, Parity computation engine |
Interfaces
Provides
- Fault-tolerant distributed data storage
Requires
- Network connectivity between distributed storage nodes
Cite this entry
Lunar Ark Codex. "Storage Redundancy System" (L3-CDH-STOR-RAID). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-CDH-STOR-RAID
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.