# How to set up a fdb cluster

**URL:** https://forums.foundationdb.org/t/how-to-set-up-a-fdb-cluster/3831
**Category:** Running FoundationDB
**Created:** [February 24, 2023, 1:58am UTC](https://forums.foundationdb.org/t/how-to-set-up-a-fdb-cluster/3831 "2023-02-24T01:58:31Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![zhouce](https://avatars.discourse-cdn.com/v4/letter/z/c37758/32.png) [@zhouce](https://forums.foundationdb.org/u/zhouce)
#### Post date: [February 24, 2023, 1:58am UTC](https://forums.foundationdb.org/t/how-to-set-up-a-fdb-cluster/3831/1 "2023-02-24T01:58:31Z")

</div>

hello,I first used Foundationdb. The teacher wanted me to build a distributed cluster. I now have three servers, ip39.98.93.150, ip39.98.93.151, and ip39.98.93.152. I have successfully run stand-alone Foundationdb on each server, as follows

```auto
fdb> status

Using cluster file `/etc/foundationdb/fdb.cluster'.

Configuration:
  Redundancy mode - single
  Storage engine - memory-2
  Encryption at-rest - disabled
  Coordinators - 1
  Usable Regions - 1

Cluster:
  FoundationDB processes - 1
  Zones - 1
  Machines - 1
  Memory availability - 8.0 GB per process on machine with least available
  Fault Tolerance - 0 machines
  Server time - 02/24/23 09:51:17

Data:
  Replication health - Healthy
  Moving data - 0.000 GB
  Sum of key-value sizes - 0 MB
  Disk space used - 105 MB

Operating space:
  Storage server - 1.0 GB free on most full server
  Log server - 92.6 GB free on most full server

Workload:
  Read rate - 22 Hz
  Write rate - 0 Hz
  Transactions started - 8 Hz
  Transactions committed - 0 Hz
  Conflict rate - 0 Hz

Backup and DR:
  Running backups - 0
  Running DRs - 0

Client time: 02/24/23 09:51:17

```

The problem is

1. I read some documents and blogs. I need to use the same fdb.cluster for dbs on three servers. How should I configure this file? Now the file is：

```auto
LI9B0LPl:MggnYlYX@127.0.0.1:4500

```

How should I modify it? In addition, how can I not find relevant information? Can you tell me some relevant information I want to see.

1. Can three servers have only one coordinator? If I want to use the server as other modules in the paper, how to modify it

 ![image](https://global.discourse-cdn.com/foundationdb/original/2X/5/5e99910196665eff170427fc1a87eb770532c1d4.png)

Thank you. The teacher’s request must be fulfilled as soon as possible, so I ask you for help

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<div class="post-metadata">

### Author: ![Imperatorx](https://avatars.discourse-cdn.com/v4/letter/i/d2c977/32.png) [@Imperatorx](https://forums.foundationdb.org/u/Imperatorx)
#### Post date: [February 24, 2023, 12:30pm UTC](https://forums.foundationdb.org/t/how-to-set-up-a-fdb-cluster/3831/2 "2023-02-24T12:30:59Z")

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[Read this](https://apple.github.io/foundationdb/building-cluster.html?highlight=make_public)

When you have 3 servers, you can `configure double ssd` to tolerate a loss of one server. You also need to `coordinators auto` to make sure you have 3 coordinators, so you can lose one coordinator.