# ZFS_COLUMNAR_DB {db-root-0001}
> type: system
> status: mvp_active
## STORAGE_ARCHITECTURE {db-stor-0001}
> type: architecture
### CHUNK_DATA {db-stor-0002}
> type: data_structure
### CHUNK_SHADOW {db-stor-0003}
> type: data_structure
### FS_INDEXING {db-stor-0004}
> type: indexing_logic
### CAS_BLOB_STORE {db-stor-0005}
> type: storage
### BLOB_METADATA {db-stor-0006}
> type: metadata
## CORE_ENGINE_C {db-core-0001}
> type: engine/native
> status: mvp_active
### MMAP_IO {db-core-0002}
> type: logic
### SIMD_SEARCH {db-core-0003}
> type: logic
> status: planning
### DISPATCH_TABLE {db-core-0004}
> type: logic
### TCP_SERVER {db-core-0005}
> type: interface
## WRITE_PIPELINE {db-write-0001}
> type: pipeline
> status: mvp_active
### ACTIVE_CHUNK {db-write-0002}
> type: buffer
### ASYNC_FLUSH {db-write-0003}
> type: logic
## PROXY_API_LAYER {db-proxy-0001}
> type: middleware
> status: mvp_active
### INTENT_BUFFER {db-proxy-0002}
> type: buffer
> status: execution_pending
### BLOB_ROUTER {db-proxy-0003}
> type: logic
> status: mvp_active
## READ_PIPELINE {db-read-0001}
> type: pipeline
> status: mvp_active
### QUERY_PARSER {db-read-0002}
> type: logic
> status: mvp_active
### BLOB_RESOLVER {db-read-0003}
> type: logic
> status: mvp_active
## LIFECYCLE_MGR {db-life-0001}
> type: manager
> status: mvp_active
### COMPACT_ORCHESTRATOR {db-life-0002}
> type: logic
> status: mvp_active
### COMPACT_ENGINE_C {db-life-0003}
> type: logic
> status: mvp_active
### LAZY_GC {db-life-0004}
> type: logic
> status: mvp_active
## SIGNAL_MESH {db-signal-0001}
> type: infrastructure
> status: mvp_active
### FS_STATUS_DIR {db-signal-0002}
> type: structure
> status: mvp_active
### CONTROL_DAEMON {db-signal-0003}
> type: service
> status: mvp_active
### DISPATCH_WORKER {db-signal-0004}
> type: logic
> status: mvp_active
## SPOOL_MAILBOX_LAYER {db-spool-0001}
> type: transport
> status: mvp_active
### SPOOL_QUARANTINE {db-spool-0010}
> type: structure
> status: mvp_active
### POISON_PILL_HANDLING {db-spool-0011}
> type: logic
> status: mvp_active
### SPOOL_INBOX {db-spool-0002}
> type: structure
> status: mvp_active
### THREE_PHASE_HANDSHAKE {db-spool-0003}
> type: logic
> status: mvp_active
### INBOX_WATCHER {db-spool-0004}
> type: daemon
> status: mvp_active
### SPOOL_OUTBOX {db-spool-0005}
> type: structure
> status: mvp_active
### HEARTBEAT_WATCHDOG {db-spool-0006}
> type: logic
> status: mvp_active