Administrator Guide

Fluid Cache License Is Expired
Possible Cause System settings such as changes to the system date cause the current Fluid Cache
license to expire. You can still access data on cached volumes, but performance is
degraded because the Fluid Cache cluster has been placed in maintenance mode and
caching is no longer active.
Solution Check the status of the license file by selecting the Fluid Cache cluster in Enterprise
Manager and referring to the status shown on the Events or Cache tabs. If the license is
expired, make sure that your system settings for date and time are correct. If it is not
correct, set the appropriate date and time. Take the Fluid Cache cluster out of
maintenance mode by selecting the cluster in Enterprise Manager, clicking Edit
Settings in the Summary tab, and then clearing the Maintenance Mode option.
Possible Cause Fluid Cache for SAN is running on an evaluation license (typically 90 days) and that time
period has been exceeded. You can still access data on cached volumes, but
performance is degraded because the Fluid Cache cluster has been placed in
maintenance mode and caching is no longer active.
Solution Check the status of the license file by selecting the Fluid Cache cluster in Enterprise
Manager and referring to the license type shown on the Events or Cache tabs. If the
number of days remaining is zero, contact your Dell representative to purchase a Fluid
Cache for SAN license. After activating the new license, take the Fluid Cache cluster out
of maintenance mode by selecting the cluster in Enterprise Manager, clicking Edit
Settings in the Summary tab, and deselecting Maintenance Mode.
Fluid Cache License Is Invalid
Possible Cause The license file is invalid if it is in any way modified. This causes unsuccessful digital
signature validation.
Solution Contact Dell Customer Support.
Cannot Configure the Cache Network
Possible Cause Firewall settings or IP table entries are preventing access to one or more ports required
by Fluid Cache.
Solution Change your firewall settings to allow access by Fluid Cache. For a list of required
ports, see Checking Network Connections. To check which ports are currently in use,
log in as a root user and run the command:
/bin/netstat -tulpn
Troubleshooting Fluid Cache Installations 45