Administrator Guide

Server Does Not Appear in List of
Servers
Possible Cause A configuration issue is preventing the server from appearing in the list.
Solution From the server, run the command ip addr. The cache network interface’s state
should display as UP. If not, recheck the server configuration. See
Preparing the Fluid Cache Servers and Setting up the Fluid Cache Servers.
Possible Cause Firewall or iptables settings are preventing network communication.
Solution Check your firewall and iptables settings. See Checking Security Settings.
Possible Cause The network switch is not correctly cabled or configured.
Solution Review the settings for the network switch and consult your switch documentation.
See Cluster or Application Has Performance Issues.
Possible Cause The Fluid Cache agent is not running on the server.
Solution From the server, run the command: service fldc_agentd start
Possible Cause The Avahi daemon is not running on the server.
Solution From the server, run the command: service avahi-daemon start.
Cache Device Does Not Appear in List
of Cache Devices
Possible Cause The cache device you are trying to add is not supported by Fluid Cache.
Solution Refer to the list of supported devices in Requirements for Fluid Cache.
Possible Cause The driver or firmware for the cache device is not a supported version.
Solution Make sure that your cache device firmware and driver are up to date and that the driver
is loaded.
Firmware: Run the command: dmesg | grep mtip32xx | grep Firmware
In the output, the firmware must version displayed must be B1490508 or later.
Driver: Run the command: dmesg | grep -i micron
In the output, the driver version for the device named Micron RealSSD PCIe must be
2.4.2 or later.
Possible Cause The cache device is not functioning properly.
Troubleshooting Fluid Cache Installations 42