diff --git a/doc/sfschunkserver.cfg.5.adoc b/doc/sfschunkserver.cfg.5.adoc
index 32f5eea94..cb0c61b0c 100644
--- a/doc/sfschunkserver.cfg.5.adoc
+++ b/doc/sfschunkserver.cfg.5.adoc
@@ -137,10 +137,10 @@ in a single write job. If possible, will try to make a single pwrite call
 
 *MAX_BLOCKS_PER_HDD_READ_JOB*:: maximum number of blocks read from the device
 in a single read job. If possible, will try to make a single pread call
-(default is 8, minimum is 1)
+(default is 16, minimum is 1)
 
 *MAX_PARALLEL_HDD_READ_JOBS_PER_CS_ENTRY*:: maximum number of read jobs processed
-in parallel per client connection (default is 16)
+in parallel per client connection (default is 1)
 
 *READ_AHEAD_KB*:: additional number of kilobytes which should be passed to
 posix_fadvise(POSIX_FADV_WILLNEED) before reading data from a chunk (default is
diff --git a/src/admin/dump_config_command.cc b/src/admin/dump_config_command.cc
index 0549fbd4b..3021222d0 100644
--- a/src/admin/dump_config_command.cc
+++ b/src/admin/dump_config_command.cc
@@ -166,8 +166,8 @@ const static std::unordered_map<std::string, std::string> defaultOptionsCS = {
     {"NR_OF_HDD_WORKERS_PER_NETWORK_WORKER", "16"},
     {"BGJOBSCNT_PER_NETWORK_WORKER", "4000"},
     {"MAX_BLOCKS_PER_HDD_WRITE_JOB", "16"},
-    {"MAX_BLOCKS_PER_HDD_READ_JOB", "8"},
-    {"MAX_PARALLEL_HDD_READ_JOBS_PER_CS_ENTRY", "16"},
+    {"MAX_BLOCKS_PER_HDD_READ_JOB", "16"},
+    {"MAX_PARALLEL_HDD_READ_JOBS_PER_CS_ENTRY", "1"},
     {"MAX_READ_BEHIND_KB", "0"},
     {"PERFORM_FSYNC", "1"},
     {"STAT_CHUNKS_AT_DISK_SCAN", "1"},
diff --git a/src/chunkserver/network_worker_thread.h b/src/chunkserver/network_worker_thread.h
index e650d131b..33f909cf7 100644
--- a/src/chunkserver/network_worker_thread.h
+++ b/src/chunkserver/network_worker_thread.h
@@ -40,8 +40,8 @@ class NetworkWorkerThread {
 	static constexpr uint32_t kDefaultNumberOfHddWorkersPerNetworkWorker = 16;
 	static constexpr uint32_t kDefaultMaxBackgroundJobsPerNetworkWorker = 4000;
 
-	static constexpr uint16_t kDefaultMaxParallelHddReadJobsPerCsEntry = 16;
-	static constexpr uint16_t kDefaultMaxBlocksPerHddReadJob = 8;
+	static constexpr uint16_t kDefaultMaxParallelHddReadJobsPerCsEntry = 1;
+	static constexpr uint16_t kDefaultMaxBlocksPerHddReadJob = 16;
 
 	static constexpr uint16_t kDefaultMaxBlocksPerHddWriteJob = 16;
 	static constexpr uint16_t kMinBlocksPerHddWriteJob = 1;
diff --git a/src/data/sfschunkserver.cfg.in b/src/data/sfschunkserver.cfg.in
index 9e6f9a3f0..b38f25741 100644
--- a/src/data/sfschunkserver.cfg.in
+++ b/src/data/sfschunkserver.cfg.in
@@ -156,12 +156,12 @@
 # MAX_BLOCKS_PER_HDD_WRITE_JOB = 16
 
 ## Maximum number of blocks read from the device in a single read job. If possible,
-## will try to make a single pread call. (Default: 8, Minimum: 1)
-# MAX_BLOCKS_PER_HDD_READ_JOB = 8
+## will try to make a single pread call. (Default: 16, Minimum: 1)
+# MAX_BLOCKS_PER_HDD_READ_JOB = 16
 
 ## Maximum number of read jobs processed in parallel per client connection.
-## (Default: 16)
-# MAX_PARALLEL_HDD_READ_JOBS_PER_CS_ENTRY = 16
+## (Default: 1)
+# MAX_PARALLEL_HDD_READ_JOBS_PER_CS_ENTRY = 1
 
 ## additional number of kilobytes which should be passed to
 ## posix_fadvise(POSIX_FADV_WILLNEED) before reading data from a chunk