diff --git a/src/storage/filesystem.js b/src/storage/filesystem.js
index 557e8d3b4..031e86510 100644
--- a/src/storage/filesystem.js
+++ b/src/storage/filesystem.js
@@ -77,25 +77,17 @@ async function checkBackupPreconditions(apiConfig, dataLayout) {
     assert.strictEqual(typeof apiConfig, 'object');
     assert(dataLayout instanceof DataLayout, 'dataLayout must be a DataLayout');
 
-    let backupRootPath;
-    if (apiConfig.provider === PROVIDER_SSHFS || apiConfig.provider === PROVIDER_CIFS || apiConfig.provider === PROVIDER_NFS || apiConfig.provider === PROVIDER_EXT4 || apiConfig.provider === PROVIDER_XFS) {
-        backupRootPath = paths.MANAGED_BACKUP_MOUNT_DIR;
-    } else if (apiConfig.provider === PROVIDER_MOUNTPOINT) {
-        backupRootPath = paths.apiConfig.mountpoint;
-    } else {
-        backupRootPath = apiConfig.backupFolder;
-    }
-
-    const [error, dfResult] = await safe(df.file(backupRootPath)); // without prefix in case it's not mounted at all
-    if (error) throw new BoxError(BoxError.FS_ERROR, `Error when checking for disk space: ${error.message}`);
-
     // Check filesystem is mounted so we don't write into the actual folder on disk
-    if (apiConfig.provider === PROVIDER_SSHFS || apiConfig.provider === PROVIDER_CIFS || apiConfig.provider === PROVIDER_NFS || apiConfig.provider === PROVIDER_EXT4 || apiConfig.provider === PROVIDER_XFS) {
-        if (dfResult.mountpoint !== paths.MANAGED_BACKUP_MOUNT_DIR) throw new BoxError(BoxError.FS_ERROR, 'Backup target is not mounted');
-    } else if (apiConfig.provider === PROVIDER_MOUNTPOINT) {
-        if (dfResult.mountpoint === '/') throw new BoxError(BoxError.FS_ERROR, `${apiConfig.backupFolder} is not mounted`);
+    if (mounts.isManagedProvider(apiConfig.provider) || apiConfig.provider === 'mountpoint') {
+        const hostPath = mounts.isManagedProvider(apiConfig.provider) ? paths.MANAGED_BACKUP_MOUNT_DIR : apiConfig.mountPoint;
+        const status = await mounts.getStatus(apiConfig.provider, hostPath); // { state, message }
+        debug(`clean: mount point status is ${JSON.stringify(status)}`);
+        if (status.state !== 'active') throw new BoxError(BoxError.MOUNT_ERROR, `Backup endpoint is not mounted: ${status.message}`);
     }
 
+    const [error, dfResult] = await safe(df.file(getBackupRootPath(apiConfig)));
+    if (error) throw new BoxError(BoxError.FS_ERROR, `Error when checking for disk space: ${error.message}`);
+
     let used = 0;
     for (const localPath of dataLayout.localPaths()) {
         debug(`checkBackupPreconditions: getting disk usage of ${localPath}`);