diff --git a/autotest/CheckBak/CheckBak.cpp b/autotest/CheckBak/CheckBak.cpp
index 41b75be21..898915b86 100644
--- a/autotest/CheckBak/CheckBak.cpp
+++ b/autotest/CheckBak/CheckBak.cpp
@@ -16,42 +16,56 @@ CONSOLE_APP_MAIN
 	LOG("Filesystem uses " << n << "%");
 	ASSERT(n > 10 && n < 80);
 
-	for(auto dir : Split("/net/nas1/bak;/net/nas/bak;/bak;/big/bak", ';')) {
-		FindFile ff(dir + "/*");
-		Time tm = Time::Low();
-		int64 len = 0;
-		String fn;
-		
-		while(ff) {
-			if(ff.IsFile()) {
-				Time tm1 = Time(ff.GetLastWriteTime());
-				if(tm1 > tm) {
-					tm = tm1;
-					len = ff.GetLength();
-					fn = ff.GetPath();
-				}
-			}
-			ff.Next();
-		}
-		
-		len = len >> 20;
-		LOG(fn << ", last time: " << tm << ", size " << len << " MB");
+	FindFile ff("/bak/*");
+	Time tm = Time::Low();
+	int64 len = 0;
+	String fn;
 	
-		ASSERT(tm >= GetSysDate() - 1);
-		ASSERT(len > 2000 && len < 4000);
+	while(ff) {
+		if(ff.IsFile()) {
+			Time tm1 = Time(ff.GetLastWriteTime());
+			if(tm1 > tm) {
+				tm = tm1;
+				len = ff.GetLength();
+				fn = ff.GetPath();
+			}
+		}
+		ff.Next();
+	}
 
-		String h = Sys("tar -tvf " + fn);
-		int q = h.Find("root/website.bak/root/bak/forum.fud");
-		ASSERT(q >= 17);
-		String s = h.Mid(q - 17, 17);
-		Date d;
-		// 2014-10-30 01:01:56
-		// 0123456789012345678
-		d.year = atoi(s);
-		d.month = atoi(~s + 5);
-		d.day = atoi(~s + 8);
-		LOG("forum.fud last date: " << d);
-		ASSERT(d >= GetSysDate() - 1);
+	LOG(fn << ", last time: " << tm << ", size " << (len >> 20) << " MB");
+
+	String h = Sys("tar -tvf " + fn);
+	q = h.Find("root/website.bak/root/bak/forum.fud");
+	ASSERT(q >= 17);
+	s = h.Mid(q - 17, 17);
+	Date d;
+	// 2014-10-30 01:01:56
+	// 0123456789012345678
+	d.year = atoi(s);
+	d.month = atoi(~s + 5);
+	d.day = atoi(~s + 8);
+	LOG("forum.fud last date: " << d);
+	ASSERT(d >= GetSysDate() - 1);
+	ASSERT(tm >= GetSysDate() - 1);
+	len = len >> 20;
+	ASSERT(len > 2000 && len < 4000);
+
+	for(auto dir : Split("/net/nas1/bak;/net/nas/bak;/big/bak", ';')) {
+		FileIn in1(fn);
+		
+		String p = dir + '/' + GetFileName(fn);
+		LOG(p);
+		FileIn in2(p);
+		
+		for(;;) {
+			if(in1.IsEof()) {
+				ASSERT(in2.IsEof());
+				break;
+			}
+			ASSERT(!in2.IsEof());
+			ASSERT(in1.Get(1 << 20) == in2.Get(1 << 20));
+		}
 	}
 	
 	LOG("------------------- OK");