For the ccm_main Process

ccm show memberView

Function
Displays the status of CCM cluster nodes.
Syntax
ccm show memberView
Parameters
N/A

Example

root:/mgrtool>ccm show memberView
-memberView-----------------------------------------------------------------------------
-memberNum:   3
nodeId:         2, state:    ACTIVE, ip:    192.168.3.30, role:    MASTER.
nodeId:         0, state:    ACTIVE, ip:    192.168.3.45, role:     SLAVE.
nodeId:         1, state:    ACTIVE, ip:    192.168.3.29, role:     SLAVE.

Table 1 describes the parameters in the example.

**Table 1** Parameter description
Field	Description	Example
memberNum	Number of CCM nodes	3
nodeId	CCM node ID	2
state	CCM node status	ACTIVE/INACTIVE
ip	IP address of the CCM node	192.168.3.30
role	CCM node role	MASTER (primary)/SLAVE (secondary)

ccm show clusterNetConnection

Function
Displays the cluster network connection status. Perform this operation on the primary CCM node.
Syntax
ccm show clusterNetConnection
Parameters
N/A
Example
```
root:/mgrtool>ccm show clusterNetConnection
nodeId 0 1 2 3 
0 O O O O 
1 O O O O 
2	O	O	O	O	
3	O	O	O	O	
```
This table is a two-dimensional array. Each cell indicates the connection status between two nodes. O indicates that the two nodes are connected, and X indicates that the two nodes are disconnected.

ccm set permanentFault

Function
Sets a node to the permanent faulty state. Perform this operation on the primary CCM node.
Syntax
ccm set permanentFault [nodeId]
Parameters
nodeId indicates the node ID.

Example

globalcache:/mgrtool>ccm set permanentFault 0
process node:0 permanent fault success.

ccm start scaleout

Function
Starts the scale-out. Perform this operation on the primary CCM node.
Syntax
ccm start scaleout
Parameters
N/A
Example
```
root:/mgrtool>ccm start scaleout      
total 1 nodes in scaling:
192.168.1.120
```
This command is used to start the scale-out. If the scale-out is normally started, the CLI displays the IP address of the node to be added. If the scale-out fails to be started, the failure cause is displayed. If the scale-out fails in that the node to be added is faulty, you need to perform BDM formatting to format drives of the node and then restore the scale-out, so as to ensure that the number of nodes to added remains unchanged in the second scale-out attempt.

ccm start failback

Function
Recovers a node from the permanent faulty state. Perform this operation on the primary CCM node.
Syntax
ccm start failback
Parameters
N/A
Example
```
root:/mgrtool>ccm start failback      
total 1 nodes in failback:
192.168.1.120
```
This command is used to start the restoration of an old node. If the startup is successful, the CLI displays the IP address of the node to be added. If the startup fails, the failure cause is displayed.

ccm show scaleout status

Function
Checks the scale-out status. Perform this operation on the primary CCM node.
Syntax
ccm show scaleout status
Parameters
N/A

Example

root:/mgrtool>ccm show scaleout status      
current is in PREHANDLE

**Table 2** Parameter description
Phase	Description
PREHANDLE	Pre-handling phase: Pre-applies for resources on the new node.
PREPARE	Preparation phase: Splits old data.
INDEX_COMMIT	Commit phase: The index layer commits the latest written data.
CACHE_SRC_COMMIT	Commit phase: The cache layer of the source node commits the latest written data.
CACHE_DST_COMMIT	Commit phase: The cache layer of the destination node commits the latest written data.
UPDATEVIEW	View update: traffic switching
FINISHE	Completion phase: Old resources are cleared.

After the scale-out task is complete, "no scale out event is running" is displayed.

ccm set compression config

Function
Sets the compression status of a specified pool. Perform this operation on the primary CCM node.
Syntax
ccm set compression config <cephPoolId> <compression> <algorithm Type> <algorithm Version> <compression Level>

Parameters

Parameter	Description	Value
<cephPoolId>	ID of the Ceph pool to be set	0 - 2³²–1
<compression>	Data compression switch	0: disabled; 1: enabled
<algorithm Type>	Selects a compression algorithm type.	0, 1
<algorithm Version>	Selects the compression algorithm version.	0
<compression Level>	Selects the compression level of the compression algorithm.	0

Example

root:/mgrtool>ccm set compression 10 1 0 0 0
Set Pool Config To CCM Succeeded.

ccm show compression config

Function
Displays the compression status of a specified pool. Perform this operation on the primary CCM node.
Syntax
ccm show compression config <cephPoolId>

Parameters

Parameter	Description	Value
<cephPoolId>	ID of the Ceph pool to be set	0 - 2³²–1

Example

root:/mgrtool>ccm show compression config 10
The cephPoolId is: 10
The data_compression_enable is: 1
The compression_algorithm_type is: 0
The compression_algorithm_version is: 0
The compression_level is: 0

ccm show qos

Function
Displays the QoS configuration of the Global Cache cluster. Perform this operation on the primary CCM node.
Syntax
ccm show qos

Example

root:/mgrtool>ccm show qos
writeOpThrottle:200, readOpThrottle:0, writeBWThrottle:600000, readBWThrottle:0.

ccm set qos

Function
Sets QoS information for the Global Cache cluster. Perform this operation on the primary CCM node.
Syntax
ccm set qos <writeOpThrottle> <readOpThrottle> <writeBWThrottle> <readBWThrottle>

Parameters

Parameter	Description	Value
writeOpThrottle	Total number of I/Os that can be written at the same time	0 - 2⁶⁴–1
readOpThrottle	Total number of I/Os that can be read at the same time	0 - 2⁶⁴–1
writeBWThrottle	Total size of I/Os that can be written at the same time	0 - 2⁶⁴–1
readBWThrottle	Total size of I/Os that can be read at the same time	0 - 2⁶⁴–1

Example
The setting is successful, and no command output is displayed.
```
root:/mgrtool>ccm set qos 200 0 600000 0
```

ccm add trustip

Function
Adds an IP address to the trustlist. Perform this operation on the primary CCM node.
Syntax
ccm add trustip <ip address>

Parameters

Parameter	Description	Value
ip address	IP address	Example: 192.168.1.10

Example

root:/mgrtool>ccm add trustip 192.168.1.10 
ip is added to trustlist success.

ccm delete trustip

Function
Deletes an IP address from the trustlist. Perform this operation on the primary CCM node.
Syntax
ccm delete trustip <ip address>

Parameters

Parameter	Description	Value
ip address	IP address	Example: 192.168.1.10

Example

root:/mgrtool>ccm delete trustip 192.168.1.10
delete ip success.

ccm show trustip

Function
Displays all IP addresses in the trustlist.
Syntax
ccm show trustip

Example

root:/mgrtool>ccm show trustip
ip trustlist:
192.168.1.10

Parent topic: CCM CLI Commands