diff --git a/src/api2/config/datastore.rs b/src/api2/config/datastore.rs
index 8032a190..316d9f97 100644
--- a/src/api2/config/datastore.rs
+++ b/src/api2/config/datastore.rs
@@ -54,11 +54,12 @@ pub(crate) fn do_create_datastore(
     _lock: std::fs::File,
     mut config: SectionConfigData,
     datastore: DataStoreConfig,
+    worker: Option<&dyn crate::task::TaskState>,
 ) -> Result<(), Error> {
     let path: PathBuf = datastore.path.clone().into();
 
     let backup_user = crate::backup::backup_user()?;
-    let _store = ChunkStore::create(&datastore.name, path, backup_user.uid, backup_user.gid)?;
+    let _store = ChunkStore::create(&datastore.name, path, backup_user.uid, backup_user.gid, worker)?;
 
     config.set_data(&datastore.name, "datastore", &datastore)?;
 
@@ -157,7 +158,7 @@ pub fn create_datastore(
         Some(datastore.name.to_string()),
         auth_id,
         false,
-        move |_worker| do_create_datastore(lock, config, datastore),
+        move |worker| do_create_datastore(lock, config, datastore, Some(&worker)),
     )
 }
 
diff --git a/src/api2/node/disks/directory.rs b/src/api2/node/disks/directory.rs
index 829699ca..6f292177 100644
--- a/src/api2/node/disks/directory.rs
+++ b/src/api2/node/disks/directory.rs
@@ -190,7 +190,7 @@ pub fn create_datastore_disk(
                     bail!("datastore '{}' already exists.", datastore.name);
                 }
 
-                crate::api2::config::datastore::do_create_datastore(lock, config, datastore)?;
+                crate::api2::config::datastore::do_create_datastore(lock, config, datastore, Some(&worker))?;
             }
 
             Ok(())
diff --git a/src/api2/node/disks/zfs.rs b/src/api2/node/disks/zfs.rs
index 75c53c83..89f72172 100644
--- a/src/api2/node/disks/zfs.rs
+++ b/src/api2/node/disks/zfs.rs
@@ -383,7 +383,7 @@ pub fn create_zpool(
                     bail!("datastore '{}' already exists.", datastore.name);
                 }
 
-                crate::api2::config::datastore::do_create_datastore(lock, config, datastore)?;
+                crate::api2::config::datastore::do_create_datastore(lock, config, datastore, Some(&worker))?;
             }
 
             Ok(())
diff --git a/src/backup/chunk_store.rs b/src/backup/chunk_store.rs
index 31e8307c..e9cc3897 100644
--- a/src/backup/chunk_store.rs
+++ b/src/backup/chunk_store.rs
@@ -7,6 +7,7 @@ use std::os::unix::io::AsRawFd;
 
 use proxmox::tools::fs::{CreateOptions, create_path, create_dir};
 
+use crate::task_log;
 use crate::tools;
 use crate::api2::types::GarbageCollectionStatus;
 
@@ -61,7 +62,7 @@ impl ChunkStore {
         chunk_dir
     }
 
-    pub fn create<P>(name: &str, path: P, uid: nix::unistd::Uid, gid: nix::unistd::Gid) -> Result<Self, Error>
+    pub fn create<P>(name: &str, path: P, uid: nix::unistd::Uid, gid: nix::unistd::Gid, worker: Option<&dyn TaskState>) -> Result<Self, Error>
     where
         P: Into<PathBuf>,
     {
@@ -104,7 +105,9 @@ impl ChunkStore {
             }
             let percentage = (i*100)/(64*1024);
             if percentage != last_percentage {
-                // eprintln!("ChunkStore::create {}%", percentage);
+                if let Some(worker) = worker {
+                    task_log!(worker, "Chunkstore create: {}%", percentage)
+                }
                 last_percentage = percentage;
             }
         }
@@ -461,7 +464,7 @@ fn test_chunk_store1() {
     assert!(chunk_store.is_err());
 
     let user = nix::unistd::User::from_uid(nix::unistd::Uid::current()).unwrap().unwrap();
-    let chunk_store = ChunkStore::create("test", &path, user.uid, user.gid).unwrap();
+    let chunk_store = ChunkStore::create("test", &path, user.uid, user.gid, None).unwrap();
 
     let (chunk, digest) = super::DataChunkBuilder::new(&[0u8, 1u8]).build().unwrap();
 
@@ -472,7 +475,7 @@ fn test_chunk_store1() {
     assert!(exists);
 
 
-    let chunk_store = ChunkStore::create("test", &path, user.uid, user.gid);
+    let chunk_store = ChunkStore::create("test", &path, user.uid, user.gid, None);
     assert!(chunk_store.is_err());
 
     if let Err(_e) = std::fs::remove_dir_all(".testdir") { /* ignore */ }