# Distributed Server Design Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

This document explains the design, architecture and advanced use cases of the MinIO distributed server.

## Command-line

```
NAME:
  minio server - start object storage server

USAGE:
  minio server [FLAGS] DIR1 [DIR2..]
  minio server [FLAGS] DIR{1...64}
  minio server [FLAGS] DIR{1...64} DIR{65...128}

DIR:

| Minimum number of drives per server when server count is 1      | 02            |
| Minimum number of drives per server when server count is 2 or 3 | 01            |
| Minimum number of drives per server when server count is 4      | 01            |
| Maximum number of drives per server                             | no-limit      |
| Read quorum                                                     | N/2           |

 * Client and server exchange these certificates during the handshake phase of a TLS connection.
 *
 * ### Server Authentication
 *
 * This is the most common form of TLS authentication: clients verify that servers are trusted and
 * that they own the hostnames that they represent. Server authentication is required.
 *
 * To perform server authentication:
 *

@ExperimentalOkHttpApi
class MockWebServerRule : ExternalResource() {
  val server: MockWebServer = MockWebServer()

  override fun before() {
    try {
      server.start()
    } catch (e: IOException) {
      throw RuntimeException(e)
    }
  }

  override fun after() {
    try {
      server.shutdown()
    } catch (e: IOException) {
      logger.log(Level.WARNING, "MockWebServer shutdown failed", e)
    }
  }

		return
	}
	mux.Handle(path, exporter)
	monitoringServer := &http.Server{
		Handler: mux,
	}
	go func() {
		if err = monitoringServer.Serve(listener); network.IsUnexpectedListenerError(err) {
			log.Errorf("error running monitoring http server: %s", err)
		}
	}()
	go func() {
		<-stop
		err := monitoringServer.Close()
		log.Debugf("monitoring server terminated: %v", err)
	}()

import jcifs.smb1.dcerpc.ndr.*;
import jcifs.smb1.smb1.*;

public class MsrpcDfsRootEnum extends netdfs.NetrDfsEnumEx {

    public MsrpcDfsRootEnum(String server) {
        super(server, 200, 0xFFFF, new netdfs.DfsEnumStruct(), new NdrLong(0));
        info.level = level;
        info.e = new netdfs.DfsEnumArray200();
        ptype = 0;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

		[case(200)] DfsEnumArray200 *info200;
		[case(300)] DfsEnumArray300 *info300;
	} DfsEnumInfo;

	typedef struct {
		uint32_t level,
		[switch_is(level)] DfsEnumInfo e;
	} DfsEnumStruct;

	[op(0x15)]
	int NetrDfsEnumEx([in,string,unique] wchar_t dfs_name,
			[in] uint32_t level,
			[in] uint32_t prefmaxlen,
			[in,out,unique] DfsEnumStruct *info,
			[in,out,unique] uint32_t *totalentries);

		[case(200)] DfsEnumArray200 *info200;
		[case(300)] DfsEnumArray300 *info300;
	} DfsEnumInfo;

	typedef struct {
		uint32_t level,
		[switch_is(level)] DfsEnumInfo e;
	} DfsEnumStruct;

	[op(0x15)]
	int NetrDfsEnumEx([in,string,unique] wchar_t dfs_name,
			[in] uint32_t level,
			[in] uint32_t prefmaxlen,
			[in,out,unique] DfsEnumStruct *info,
			[in,out,unique] uint32_t *totalentries);

MinIO server configuration file allows users to provide topology that allows for heterogeneous hostnames, allowing MinIO to deployed in pre-existing environments without any further OS level configurations.

### Usage

```
minio server --config config.yaml
```

	processFileDescriptorOpenTotalMD  = NewGaugeMD(processFileDescriptorOpenTotal, "Total number of open file descriptors by the MinIO Server process")
	processSyscallReadTotalMD         = NewCounterMD(processSyscallReadTotal, "Total read SysCalls to the kernel. /proc/[pid]/io syscr")