Node State Legend

Explanation of node states and colors in the Node State Legend

The Node Status Legend defines four (4) node states, each using a different color:

Table 1. Node Status Legend Descriptions
COLORDESCRIPTION
GreenNode is online.
AmberNode is degraded. A degraded node state can indicate that the node performance is degraded or its resiliency is affected because it is serving the targets of its HA partner node (a failover operation has occurred).
RedNode is failed.
GrayNode is powered off.
Table 2. Node State Details
Node RoleOnline (Green)Failed (Red)Degraded (Amber)Powered Off (Gray)
OSSAll of the following:
  • Powered on
  • Lustre is running
  • All OSTs mounted
  • All OSTs local
All of:
  • Powered on
  • Lustre failed
Any of the following:
  • Lustre starting
  • Stopped/crashed
  • In a recovery state
  • Not all OSTs mounted
  • Mounted partner OSTs
Powered off
MDSAll of the following:
  • Powered on
  • Lustre is running
  • MDT is mounted
  • MDT is local
All of the following:
  • Powered on
  • Lustre failed
Any of the following:
  • Lustre starting
  • Stopped/crashed
  • In a recovery state
  • MDT not mounted
  • Mounted partner MDT
Powered off
MGS*Powered onPower state unknownN/APowered off
MGMTAll of the following:
  • Powered on
  • Primary node is active
  • Secondary node inactive
Power state unknownAll of the following:
  • Primary node inactive
  • Secondary node is active
Powered off

* If the MGS role exists on a node with another role (such as MDS), the criteria of the other role supersedes the MGS criteria.