PRIMECLUSTER Global File Services Configuration and Administration Guide 4.1 (Linux)

3.1.4 Automatic recovery by standby MDS node

MDS normally operates on the predefined primary MDS node and secondary MDS node.By setting a standby MDS node (i.e., MDS node other than primary or secondary MDS node), however, the number of nodes on which MDS can operate can be increased.

If the primary MDS node or secondary MDS node, or both are not activated after the specified time, the standby MDS node activates MDS instead of the primary MDS node or secondary MDS node.

MDS operation is required for accessing a file system and increasing the number of MDS nodes is advantageous to ensure continued file system operation.

For details on the MDS node settings, see "Node layout" in this manual.