![*](chapterTOC_bullet.png)
Online
![online](../cc-products-onlinehelp/images/ico_online.PNG)
: Server instance is online.
![*](chapterTOC_bullet.png)
Failed
![failed](../cc-products-onlinehelp/images/ico_failed.PNG)
: Server instance failed. For example, the
Universal Messaging server instance stopped unexpectedly due an error or system failure.
![*](chapterTOC_bullet.png)
Stopped
![stopped](../cc-products-onlinehelp/images/ico_stopped.PNG)
: Server instance is not running.
![*](chapterTOC_bullet.png)
Stopping
![stopping](../cc-products-onlinehelp/images/ico_stopping.png)
: Server instance is stopping.
![*](chapterTOC_bullet.png)
Unresponsive
![unresponsive](../cc-products-onlinehelp/images/ico_unresponsive.PNG)
: Server instance is running, but it is unresponsive. When none of the server interfaces are connected to the server.
![*](chapterTOC_bullet.png)
Unknown
![unknown](../cc-products-onlinehelp/images/ico_unknown.png)
: Server instance status cannot be determined.
![*](chapterTOC_bullet.png)
Online Master
![online master](../cc-products-onlinehelp/images/ico_online_master.PNG)
: Server instance is online and it is the master node in the cluster.
![*](chapterTOC_bullet.png)
Online Slave
![online slave](../cc-products-onlinehelp/images/ico_online_slave.PNG)
: Server instance is online and it is the slave node in the cluster.
![*](chapterTOC_bullet.png)
Error
![](../cc-products-onlinehelp/images/ico_cc_error.png)
: Server instance is part of a cluster that does not satisfy the requisite quorum.