This disclosure relates to, among other things, scalable data processing, storage, and/or management systems and methods. Certain embodiments disclosed herein provide for a multi-dimensional data storage structure that may facilitate parallel processing of data during both data ingestion and data retrieval and/or access processes involving one or more storage layers In various embodiments, sequence number schemes associated with ingested data records may allow for improved management of data stored in one or more layers (e.g., hot and/or cold data storage layers).