<commit_before># Cluster Operations
## Prior Knowledge

LeoFS provides the operation of a LeoFS' cluster after launching its storage system with the various commands, which is implemented on <a href="https://github.com/leo-project/leofs/blob/master/leofs-adm" target="_blank">leofs-adm</a>, LeoFS CLI for administration. LeoFS supports `node addition` and as unique features of LeoFS, `node deletion`, and `node suspension`, `node restart` and `node takeover` are already implemented.

## Operations
### Add a Node

LeoFS temporally adds a node into the member table of LeoManager's database after launching a new LeoStorage node. If you decide to join it in the cluster, you need to execute [leofs-adm rebalance](#rebalance-a-cluster) command.

```bash
## Example:
## 1. Launch a new LeoStorage node

## 2. Check the current state of the cluster
$ leofs-adm status
 [System Confiuration]
-----------------------------------+----------
 Item                              | Value
-----------------------------------+----------
 Basic/Consistency level
-----------------------------------+----------
                    system version | 1.3.3
                        cluster Id | leofs_1
                             DC Id | dc_1
                    Total replicas | 2
          number of successes of R | 1
          number of successes of W | 1
          number of successes of D | 1
 number of rack-awareness replicas | 0
                         ring size | 2^128<commit_msg>docs: Fix admin/system_operations/cluster<commit_after># Cluster Operations
## Prior Knowledge

LeoFS provides the cluster operation features which are implemented on <a href="https://github.com/leo-project/leofs/blob/master/leofs-adm" target="_blank">leofs-adm</a>, LeoFS CLI for administration. LeoFS supports `node addition` and `node deletion`, and as unique features of LeoFS, `node suspension`, `node restart` and `node takeover` are already covered. Those functions can be used after a LeoFS system is started.

## Operations
### Add a Node

LeoFS temporally adds a node into the member table of LeoManager's database after launching a new LeoStorage node. If you decide to join it in the cluster, you need to execute [leofs-adm rebalance](#rebalance-a-cluster) command.

```bash
## Example:
## 1. Launch a new LeoStorage node

## 2. Check the current state of the cluster
$ leofs-adm status
 [System Confiuration]
-----------------------------------+----------
 Item                              | Value
-----------------------------------+----------
 Basic/Consistency level
-----------------------------------+----------
                    system version | 1.3.3
                        cluster Id | leofs_1
                             DC Id | dc_1
                    Total replicas | 2
          number of successes of R | 1
          number of successes of W | 1
          number of successes of D | 1
 number of rack-awareness replicas | 0
                         ring size | 2^128
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