Rack mapping file

Nodes can be defined to belong to racks. For three or more racks, the failure groups of the NSD will correspond to the rack the node is in.

A sample file is available on the Ambari server at /var/lib/ambari-server/resources/mpacks/SpectrumScaleExtension-MPack-<version>/extensions/SpectrumScaleExtension/<version>/services/GPFS/package/templates/racks.sample. To use, copy the racks.sample file to the /var/lib/ambari-server/resources directory.

$ cat /var/lib/ambari-server/resources/racks.sample

#Host/Rack map configuration file
#Format:
#[hostname]:/[rackname]
#Example:
#mn01:/rack1
#NOTE:
#The first character in rack name must be "/"
mn03:/rack1
mn04:/rack2
dn02:/rack3