diff --git a/justfile b/justfile
index 8a98edf..3063c15 100644
--- a/justfile
+++ b/justfile
@@ -45,6 +45,14 @@ seed-firebird:
     echo "SELECT RDB\$RELATION_NAME FROM RDB\$RELATIONS WHERE RDB\$SYSTEM_FLAG = 0 AND RDB\$VIEW_BLR IS NULL;" \
     | docker exec -i db-firebird isql -user alice -password fake_password /var/lib/firebird/data/mirror.fdb
 
+seed-firebird-large:
+    echo "Seeding Firebird..."
+    docker exec -i db-firebird isql -user alice -password fake_password /var/lib/firebird/data/mirror.fdb < ./scripts/firebird/seed-large.sql
+
+    echo "Verifying Firebird tables..."
+    echo "SELECT RDB\$RELATION_NAME FROM RDB\$RELATIONS WHERE RDB\$SYSTEM_FLAG = 0 AND RDB\$VIEW_BLR IS NULL;" \
+    | docker exec -i db-firebird isql -user alice -password fake_password /var/lib/firebird/data/mirror.fdb
+
 seed-mssql:
     echo "Seeding MSSQL..."
     docker exec -i rust-dev sqlcmd -S "db-mssql,1433" -U sa -P "$MSSQL_SA_PASSWORD" -N disable -i /app/scripts/mssql/seed.sql
diff --git a/scripts/firebird/seed-large.sql b/scripts/firebird/seed-large.sql
new file mode 100644
index 0000000..4492faa
--- /dev/null
+++ b/scripts/firebird/seed-large.sql
@@ -0,0 +1,259 @@
+SET SQL DIALECT 3;
+SET BAIL ON;
+SET AUTODDL OFF;
+
+CREATE TABLE users (
+                       id INTEGER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
+                       email VARCHAR(255) NOT NULL UNIQUE,
+                       name VARCHAR(255),
+                       payload BLOB SUB_TYPE TEXT,
+                       created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+COMMIT;
+
+INSERT INTO users (email, name, payload)
+VALUES ('alice@example.com', 'Alice', 'Alice seed data');
+
+INSERT INTO users (email, name, payload)
+VALUES ('bob@example.com', 'Bob', 'Bob seed data');
+
+COMMIT;
+
+/*
+ * Each procedure call generates approximately 128 MiB:
+ *
+ * 128 rows
+ * × 128 chunks per row
+ * × 8191 bytes per chunk
+ * = approximately 128 MiB
+ *
+ * 40 calls = approximately 5 GiB.
+ */
+
+SET TERM ^;
+
+CREATE PROCEDURE seed_users_batch (
+    p_rows INTEGER,
+    p_chunks_per_row INTEGER
+)
+    AS
+DECLARE VARIABLE v_row_index INTEGER;
+    DECLARE VARIABLE v_chunk_index INTEGER;
+    DECLARE VARIABLE v_uuid VARCHAR(36);
+    DECLARE VARIABLE v_chunk VARCHAR(8191);
+    DECLARE VARIABLE v_payload BLOB SUB_TYPE TEXT;
+BEGIN
+    v_row_index = 0;
+
+    WHILE (v_row_index < p_rows) DO
+BEGIN
+        v_payload = NULL;
+        v_chunk_index = 0;
+
+        WHILE (v_chunk_index < p_chunks_per_row) DO
+BEGIN
+            /*
+             * Generate a different chunk to avoid producing a completely
+             * uniform BLOB.
+             */
+            v_chunk = RPAD(
+                UUID_TO_CHAR(GEN_UUID()),
+                8191,
+                UUID_TO_CHAR(GEN_UUID())
+            );
+
+            v_payload = BLOB_APPEND(v_payload, v_chunk);
+            v_chunk_index = v_chunk_index + 1;
+END
+
+        v_uuid = UUID_TO_CHAR(GEN_UUID());
+
+INSERT INTO users (
+    email,
+    name,
+    payload
+)
+VALUES (
+           :v_uuid || '@example.test',
+           'Seed User ' || :v_uuid,
+           :v_payload
+       );
+
+v_row_index = v_row_index + 1;
+END
+END^
+
+SET TERM ;^
+
+/* Batch 01 — approximately 128 MiB */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 02 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 03 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 04 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 05 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 06 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 07 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 08 — approximately 1 GiB total */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 09 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 10 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 11 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 12 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 13 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 14 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 15 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 16 — approximately 2 GiB total */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 17 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 18 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 19 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 20 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 21 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 22 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 23 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 24 — approximately 3 GiB total */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 25 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 26 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 27 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 28 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 29 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 30 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 31 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 32 — approximately 4 GiB total */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 33 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 34 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 35 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 36 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 37 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 38 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 39 */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+/* Batch 40 — approximately 5 GiB total */
+EXECUTE PROCEDURE seed_users_batch(128, 128);
+COMMIT;
+
+DROP PROCEDURE seed_users_batch;
+
+COMMIT;
+
+SELECT
+    COUNT(*) AS user_count,
+    CAST(SUM(OCTET_LENGTH(payload)) / 1073741824.0 AS DECIMAL(18, 2))
+             AS payload_size_gib
+FROM users;
+
+COMMIT;
\ No newline at end of file
diff --git a/src/domain/firebird/backup.rs b/src/domain/firebird/backup.rs
index 959bf9e..3d34dad 100644
--- a/src/domain/firebird/backup.rs
+++ b/src/domain/firebird/backup.rs
@@ -23,6 +23,7 @@ pub async fn run(
         let start = Instant::now();
         let output = Command::new("gbak")
             .arg("-b")
+            .arg("-g")
             .arg("-v")
             .arg("-user").arg(&cfg.username)
             .arg("-password").arg(&cfg.password)