diff --git a/src/api2/node/rrd.rs b/src/api2/node/rrd.rs
index 95a2816e..35260382 100644
--- a/src/api2/node/rrd.rs
+++ b/src/api2/node/rrd.rs
@@ -8,7 +8,7 @@ use proxmox_schema::api;
 
 use pbs_api_types::{NODE_SCHEMA, PRIV_SYS_AUDIT};
 
-use crate::rrd_cache::extract_rrd_data;
+use crate::server::metric_collection::rrd::extract_rrd_data;
 
 pub fn create_value_from_rrd(
     basedir: &str,
diff --git a/src/api2/status.rs b/src/api2/status.rs
index 0b0b9444..e46fc1ae 100644
--- a/src/api2/status.rs
+++ b/src/api2/status.rs
@@ -15,7 +15,7 @@ use pbs_api_types::{
 use pbs_config::CachedUserInfo;
 use pbs_datastore::DataStore;
 
-use crate::rrd_cache::extract_rrd_data;
+use crate::server::metric_collection::rrd::extract_rrd_data;
 use crate::tools::statistics::linear_regression;
 
 use crate::backup::can_access_any_namespace;
diff --git a/src/lib.rs b/src/lib.rs
index c89884c8..8633378c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -31,8 +31,6 @@ pub mod acme;
 
 pub mod client_helpers;
 
-pub mod rrd_cache;
-
 pub mod traffic_control_cache;
 
 /// Get the server's certificate info (from `proxy.pem`).
diff --git a/src/server/metric_collection/mod.rs b/src/server/metric_collection/mod.rs
index 1ca13222..5102227b 100644
--- a/src/server/metric_collection/mod.rs
+++ b/src/server/metric_collection/mod.rs
@@ -16,10 +16,11 @@ use proxmox_sys::{
     linux::procfs::{Loadavg, ProcFsMemInfo, ProcFsNetDev, ProcFsStat},
 };
 
-use crate::{
-    rrd_cache::{initialize_rrd_cache, rrd_sync_journal, rrd_update_derive, rrd_update_gauge},
-    tools::disks::{zfs_dataset_stats, BlockDevStat, DiskManage},
-};
+use crate::tools::disks::{zfs_dataset_stats, BlockDevStat, DiskManage};
+
+use rrd::{initialize_rrd_cache, rrd_sync_journal, rrd_update_derive, rrd_update_gauge};
+
+pub mod rrd;
 
 /// Initialize the metric collection subsystem.
 ///
diff --git a/src/rrd_cache.rs b/src/server/metric_collection/rrd.rs
similarity index 100%
rename from src/rrd_cache.rs
rename to src/server/metric_collection/rrd.rs