Administrator Guide

Possible Cause HCN Setup could not set up Fluid Cache on the server because the MPIO service was
configured for multipathing, but devices required by Fluid Cache were not blacklisted in
the etc/multipath.conf file.
Solution Add blacklist entries for the devices required by Fluid Cache. On each node in the
cluster, modify the Devices section of the /etc/multipath.conf file as follows:
blacklist {
devnode "^fldc[0-9]*"
devnode "^nvme[a-z]*"
devnode "^rssd[a-z]*"
}
After creating the entries and saving the file, start Fluid Cache by running this
command: service fldc_agentd start
Unable to remove a cache device from
Fluid Cache Cluster using Enterprise
Manager
Description
In Enterprise Manager, when you perform operations such as removing a cache device
from a Fluid Cluster node, the following error message is displayed:
Fluid Cache not Found
Possible Cause
Enterprise Manager may not be in synchronization with the Fluid Cache cluster to
retrieve the latest state.
Solution
To resolve this issue, shutdown the EM client, and then restart the EM Data Collector.
If the issue persists, contact Dell Customer Support.
Incorrect Network Address or Netmask
Possible Cause While setting up a server, incorrect values were entered for the network address or
netmask of either the management interface or the cache network.
Solution Restart HCN Setup and enter the correct values. See Setting up the Fluid Cache Servers.
Troubleshooting Fluid Cache Installations 41