diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index cac5b70f489..44c72693e49 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -77,6 +77,7 @@ add_headers_and_sources(clickhouse_common_io IO)
 add_headers_and_sources(clickhouse_common_io IO/S3)
 list (REMOVE_ITEM clickhouse_common_io_sources Common/malloc.cpp Common/new_delete.cpp)
 
+add_headers_and_sources(dbms Disks/IO)
 if (USE_SQLITE)
     add_headers_and_sources(dbms Databases/SQLite)
 endif()
diff --git a/src/Compression/CompressedReadBufferBase.cpp b/src/Compression/CompressedReadBufferBase.cpp
index 9e3b22fac74..c9ee751b202 100644
--- a/src/Compression/CompressedReadBufferBase.cpp
+++ b/src/Compression/CompressedReadBufferBase.cpp
@@ -11,7 +11,6 @@
 #include <IO/ReadBuffer.h>
 #include <IO/BufferWithOwnMemory.h>
 #include <Compression/CompressionInfo.h>
-#include <IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
 #include <IO/WriteHelpers.h>
 #include <IO/Operators.h>
 #include <Disks/DiskRestartProxy.h>
diff --git a/src/Disks/DiskWebServer.cpp b/src/Disks/DiskWebServer.cpp
index 148e34cf9c5..009bae355ce 100644
--- a/src/Disks/DiskWebServer.cpp
+++ b/src/Disks/DiskWebServer.cpp
@@ -3,17 +3,17 @@
 #include <base/logger_useful.h>
 #include <Common/escapeForFileName.h>
 
-#include <Disks/IDiskRemote.h>
-#include <IO/ReadBufferFromWebServer.h>
-
 #include <IO/ReadWriteBufferFromHTTP.h>
-#include <IO/ReadIndirectBufferFromRemoteFS.h>
 #include <IO/SeekAvoidingReadBuffer.h>
 #include <IO/ReadHelpers.h>
 #include <IO/WriteHelpers.h>
-#include <IO/ThreadPoolRemoteFSReader.h>
-#include <IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
-#include <Disks/ReadBufferFromRemoteFSGather.h>
+
+#include <Disks/IDiskRemote.h>
+#include <Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/ReadIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/WriteIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/ReadBufferFromRemoteFSGather.h>
+#include <Disks/IO/ThreadPoolRemoteFSReader.h>
 
 #include <Storages/MergeTree/MergeTreeData.h>
 
diff --git a/src/Disks/HDFS/DiskHDFS.cpp b/src/Disks/HDFS/DiskHDFS.cpp
index cb3e1e00277..2867fc5de34 100644
--- a/src/Disks/HDFS/DiskHDFS.cpp
+++ b/src/Disks/HDFS/DiskHDFS.cpp
@@ -1,12 +1,14 @@
 #include <Disks/HDFS/DiskHDFS.h>
 
 #include <IO/SeekAvoidingReadBuffer.h>
-#include <IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
-#include <IO/ReadIndirectBufferFromRemoteFS.h>
-#include <IO/WriteIndirectBufferFromRemoteFS.h>
-#include <Disks/ReadBufferFromRemoteFSGather.h>
 #include <Storages/HDFS/WriteBufferFromHDFS.h>
 
+#include <Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/ReadIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/WriteIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/ReadBufferFromRemoteFSGather.h>
+#include <Disks/IO/ThreadPoolRemoteFSReader.h>
+
 #include <base/logger_useful.h>
 #include <base/FnTraits.h>
 
diff --git a/src/Disks/IDiskRemote.cpp b/src/Disks/IDiskRemote.cpp
index 428de44259c..cf1baafce6c 100644
--- a/src/Disks/IDiskRemote.cpp
+++ b/src/Disks/IDiskRemote.cpp
@@ -12,7 +12,7 @@
 #include <Common/checkStackSize.h>
 #include <boost/algorithm/string.hpp>
 #include <Common/filesystemHelpers.h>
-#include <IO/ThreadPoolRemoteFSReader.h>
+#include <Disks/IO/ThreadPoolRemoteFSReader.h>
 
 
 namespace DB
diff --git a/src/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp b/src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp
similarity index 93%
rename from src/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp
rename to src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp
index 08beed079e8..a5661decaa9 100644
--- a/src/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp
+++ b/src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.cpp
@@ -1,7 +1,8 @@
 #include "AsynchronousReadIndirectBufferFromRemoteFS.h"
 
 #include <Common/Stopwatch.h>
-#include <IO/ThreadPoolRemoteFSReader.h>
+#include <Disks/IO/ThreadPoolRemoteFSReader.h>
+#include <Disks/IO/ReadBufferFromRemoteFSGather.h>
 #include <base/logger_useful.h>
 
 
@@ -46,7 +47,13 @@ AsynchronousReadIndirectBufferFromRemoteFS::AsynchronousReadIndirectBufferFromRe
     , min_bytes_for_seek(min_bytes_for_seek_)
 {
     ProfileEvents::increment(ProfileEvents::RemoteFSAsyncBuffers);
-    buffer_events += impl->getFileName() + " : ";
+    buffer_events += "Events for buffer: " + impl->getFileName() + " : ";
+}
+
+
+String AsynchronousReadIndirectBufferFromRemoteFS::getFileName() const
+{
+    return impl->getFileName();
 }
 
 
@@ -92,9 +99,9 @@ void AsynchronousReadIndirectBufferFromRemoteFS::prefetch()
 }
 
 
-void AsynchronousReadIndirectBufferFromRemoteFS::setReadUntilPosition(size_t offset)
+void AsynchronousReadIndirectBufferFromRemoteFS::setReadUntilPosition(size_t position)
 {
-    buffer_events += "-- Set last offset " + toString(offset) + "--";
+    buffer_events += "-- Set last offset " + toString(position) + "--";
     if (prefetch_future.valid())
     {
         LOG_DEBUG(&Poco::Logger::get("kssenii"), buffer_events);
@@ -108,13 +115,14 @@ void AsynchronousReadIndirectBufferFromRemoteFS::setReadUntilPosition(size_t off
         // prefetch_future = {};
     }
 
-    last_offset = offset;
-    impl->setReadUntilPosition(offset);
+    last_offset = position;
+    impl->setReadUntilPosition(position);
 }
 
 
 bool AsynchronousReadIndirectBufferFromRemoteFS::nextImpl()
 {
+    LOG_DEBUG(&Poco::Logger::get("kssenii"), buffer_events);
     /// Everything is already read.
     if (absolute_position == last_offset)
         return false;
@@ -163,12 +171,7 @@ bool AsynchronousReadIndirectBufferFromRemoteFS::nextImpl()
 
     prefetch_future = {};
 
-    /// TODO: it does not really seem to improve anything to call prefetch() here,
-    /// but it does not make any worse at the same time.
-    /// Need to test, it might be useful because in fact sometimes (minority of cases though)
-    /// we can read without prefetching several times in a row.
-    prefetch();
-
+    LOG_DEBUG(&Poco::Logger::get("kssenii"), buffer_events);
     return size;
 }
 
diff --git a/src/IO/AsynchronousReadIndirectBufferFromRemoteFS.h b/src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.h
similarity index 92%
rename from src/IO/AsynchronousReadIndirectBufferFromRemoteFS.h
rename to src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.h
index f1cfbfde8f6..6842d62f22a 100644
--- a/src/IO/AsynchronousReadIndirectBufferFromRemoteFS.h
+++ b/src/Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.h
@@ -6,14 +6,14 @@
 
 #include <IO/ReadBufferFromFile.h>
 #include <IO/AsynchronousReader.h>
-#include <Disks/ReadBufferFromRemoteFSGather.h>
-#include <Disks/IDiskRemote.h>
 #include <utility>
 
 
 namespace DB
 {
 
+class ReadBufferFromRemoteFSGather;
+
 /**
 * Reads data from S3/HDFS/Web using stored paths in metadata.
 * This class is an asynchronous version of ReadIndirectBufferFromRemoteFS.
@@ -43,7 +43,7 @@ public:
 
     off_t getPosition() override { return absolute_position - available(); }
 
-    String getFileName() const override { return impl->getFileName(); }
+    String getFileName() const override;
 
     void prefetch() override;
 
diff --git a/src/Disks/ReadBufferFromRemoteFSGather.cpp b/src/Disks/IO/ReadBufferFromRemoteFSGather.cpp
similarity index 97%
rename from src/Disks/ReadBufferFromRemoteFSGather.cpp
rename to src/Disks/IO/ReadBufferFromRemoteFSGather.cpp
index ff9231bf9d3..c12af031089 100644
--- a/src/Disks/ReadBufferFromRemoteFSGather.cpp
+++ b/src/Disks/IO/ReadBufferFromRemoteFSGather.cpp
@@ -2,7 +2,7 @@
 
 #include <Disks/IDiskRemote.h>
 #include <IO/SeekableReadBuffer.h>
-#include <IO/ReadBufferFromWebServer.h>
+#include <Disks/IO/ReadBufferFromWebServer.h>
 
 #if USE_AWS_S3
 #include <IO/ReadBufferFromS3.h>
@@ -21,12 +21,6 @@ namespace fs = std::filesystem;
 namespace DB
 {
 
-namespace ErrorCodes
-{
-    extern const int CANNOT_SEEK_THROUGH_FILE;
-}
-
-
 #if USE_AWS_S3
 SeekableReadBufferPtr ReadBufferFromS3Gather::createImplementationBuffer(const String & path, size_t offset) const
 {
diff --git a/src/Disks/ReadBufferFromRemoteFSGather.h b/src/Disks/IO/ReadBufferFromRemoteFSGather.h
similarity index 100%
rename from src/Disks/ReadBufferFromRemoteFSGather.h
rename to src/Disks/IO/ReadBufferFromRemoteFSGather.h
diff --git a/src/IO/ReadBufferFromWebServer.cpp b/src/Disks/IO/ReadBufferFromWebServer.cpp
similarity index 97%
rename from src/IO/ReadBufferFromWebServer.cpp
rename to src/Disks/IO/ReadBufferFromWebServer.cpp
index 245364a9896..69683edec4c 100644
--- a/src/IO/ReadBufferFromWebServer.cpp
+++ b/src/Disks/IO/ReadBufferFromWebServer.cpp
@@ -17,6 +17,7 @@ namespace ErrorCodes
 {
     extern const int CANNOT_SEEK_THROUGH_FILE;
     extern const int SEEK_POSITION_OUT_OF_BOUND;
+    extern const int LOGICAL_ERROR;
 }
 
 
@@ -49,7 +50,7 @@ std::unique_ptr<ReadBuffer> ReadBufferFromWebServer::initialize()
     if (last_offset)
     {
         if (last_offset < offset)
-            throw Exception(ErrorCodes::LOGICAL_ERROR, "Attempt to read beyound right offset ({} > {})", offset, last_offset - 1);
+            throw Exception(ErrorCodes::LOGICAL_ERROR, "Attempt to read beyond right offset ({} > {})", offset, last_offset - 1);
 
         headers.emplace_back(std::make_pair("Range", fmt::format("bytes={}-{}", offset, last_offset - 1)));
         LOG_DEBUG(log, "Reading with range: {}-{}", offset, last_offset);
@@ -133,7 +134,7 @@ bool ReadBufferFromWebServer::nextImpl()
             return false;
 
         if (last_offset < offset)
-            throw Exception(ErrorCodes::LOGICAL_ERROR, "Attempt to read beyound right offset ({} > {})", offset, last_offset - 1);
+            throw Exception(ErrorCodes::LOGICAL_ERROR, "Attempt to read beyond right offset ({} > {})", offset, last_offset - 1);
     }
 
     if (impl)
@@ -155,7 +156,7 @@ bool ReadBufferFromWebServer::nextImpl()
         {
             /**
             * impl was initialized before, pass position() to it to make
-            * sure there is no pending data which was not read, becuase
+            * sure there is no pending data which was not read, because
             * this branch means we read sequentially.
             */
             impl->position() = position();
diff --git a/src/IO/ReadBufferFromWebServer.h b/src/Disks/IO/ReadBufferFromWebServer.h
similarity index 100%
rename from src/IO/ReadBufferFromWebServer.h
rename to src/Disks/IO/ReadBufferFromWebServer.h
diff --git a/src/IO/ReadIndirectBufferFromRemoteFS.cpp b/src/Disks/IO/ReadIndirectBufferFromRemoteFS.cpp
similarity index 97%
rename from src/IO/ReadIndirectBufferFromRemoteFS.cpp
rename to src/Disks/IO/ReadIndirectBufferFromRemoteFS.cpp
index d70d280871a..f0133e0fafa 100644
--- a/src/IO/ReadIndirectBufferFromRemoteFS.cpp
+++ b/src/Disks/IO/ReadIndirectBufferFromRemoteFS.cpp
@@ -1,6 +1,6 @@
 #include "ReadIndirectBufferFromRemoteFS.h"
 
-#include <Disks/ReadBufferFromRemoteFSGather.h>
+#include <Disks/IO/ReadBufferFromRemoteFSGather.h>
 
 
 namespace ProfileEvents
diff --git a/src/IO/ReadIndirectBufferFromRemoteFS.h b/src/Disks/IO/ReadIndirectBufferFromRemoteFS.h
similarity index 100%
rename from src/IO/ReadIndirectBufferFromRemoteFS.h
rename to src/Disks/IO/ReadIndirectBufferFromRemoteFS.h
diff --git a/src/IO/ThreadPoolRemoteFSReader.cpp b/src/Disks/IO/ThreadPoolRemoteFSReader.cpp
similarity index 95%
rename from src/IO/ThreadPoolRemoteFSReader.cpp
rename to src/Disks/IO/ThreadPoolRemoteFSReader.cpp
index 258d20d62e9..976162ab625 100644
--- a/src/IO/ThreadPoolRemoteFSReader.cpp
+++ b/src/Disks/IO/ThreadPoolRemoteFSReader.cpp
@@ -1,4 +1,4 @@
-#include <IO/ThreadPoolRemoteFSReader.h>
+#include "ThreadPoolRemoteFSReader.h"
 
 #include <Common/Exception.h>
 #include <Common/ProfileEvents.h>
@@ -8,7 +8,7 @@
 #include <Common/setThreadName.h>
 
 #include <IO/SeekableReadBuffer.h>
-#include <Disks/ReadBufferFromRemoteFSGather.h>
+#include <Disks/IO/ReadBufferFromRemoteFSGather.h>
 
 #include <future>
 #include <iostream>
diff --git a/src/IO/ThreadPoolRemoteFSReader.h b/src/Disks/IO/ThreadPoolRemoteFSReader.h
similarity index 100%
rename from src/IO/ThreadPoolRemoteFSReader.h
rename to src/Disks/IO/ThreadPoolRemoteFSReader.h
diff --git a/src/IO/WriteIndirectBufferFromRemoteFS.cpp b/src/Disks/IO/WriteIndirectBufferFromRemoteFS.cpp
similarity index 100%
rename from src/IO/WriteIndirectBufferFromRemoteFS.cpp
rename to src/Disks/IO/WriteIndirectBufferFromRemoteFS.cpp
diff --git a/src/IO/WriteIndirectBufferFromRemoteFS.h b/src/Disks/IO/WriteIndirectBufferFromRemoteFS.h
similarity index 100%
rename from src/IO/WriteIndirectBufferFromRemoteFS.h
rename to src/Disks/IO/WriteIndirectBufferFromRemoteFS.h
diff --git a/src/Disks/S3/DiskS3.cpp b/src/Disks/S3/DiskS3.cpp
index b6c94ca0802..e04802d6b8c 100644
--- a/src/Disks/S3/DiskS3.cpp
+++ b/src/Disks/S3/DiskS3.cpp
@@ -17,17 +17,19 @@
 #include <Common/quoteString.h>
 #include <Common/thread_local_rng.h>
 
-#include <Disks/ReadBufferFromRemoteFSGather.h>
 #include <Interpreters/Context.h>
 #include <IO/ReadBufferFromS3.h>
-#include <IO/WriteIndirectBufferFromRemoteFS.h>
 #include <IO/ReadBufferFromString.h>
 #include <IO/ReadHelpers.h>
 #include <IO/SeekAvoidingReadBuffer.h>
 #include <IO/WriteBufferFromS3.h>
 #include <IO/WriteHelpers.h>
-#include <IO/ReadIndirectBufferFromRemoteFS.h>
-#include <IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
+
+#include <Disks/IO/ReadBufferFromRemoteFSGather.h>
+#include <Disks/IO/AsynchronousReadIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/ReadIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/WriteIndirectBufferFromRemoteFS.h>
+#include <Disks/IO/ThreadPoolRemoteFSReader.h>
 
 #include <aws/s3/model/CopyObjectRequest.h> // Y_IGNORE
 #include <aws/s3/model/DeleteObjectsRequest.h> // Y_IGNORE