Owners Manual

Interface Port number Port type
Fluid Cache to Storage Center 3033 TCP
NOTE: Fluid Cache cannot be configured and does not function properly if any of these ports are
unavailable. To diagnose network connection problems and reassign port numbers, see the
troubleshooting topic Cannot Configure Fluid Cache.
RDMA Functionality
To make sure that RDMA is working correctly between the cluster nodes, use the utility ib_send_bw:
1. On one node, run the command: ib_send_bw
2. On a second node, run the command: ib_send_bw <IP_address_of_first_node>
If the test is successful, the bandwidth for the node displays on each node.
Multipathing Support
Fluid Cache supports multipathing and uses existing multipath configurations. You must make two
modifications to the Devices section of the /etc/multipath.conf file on each node in the cluster:
1. For the vendor “COMPELNT”, specify no_path_retry 6
2. Add blacklist entries to exclude devices used by Fluid Cache, as shown:
blacklist {
devnode "^fldc[0-9]*"
devnode "^nvme[a-z]*"
devnode "^rssd[a-z]*"
}
Checking Application Settings
All applications that use volumes mapped to Fluid Cache must be configured to start after Fluid Cache
and exit before Fluid Cache.
Preparing the Servers
Make sure that each server in the Fluid Cache cluster has the latest supported BIOS version, Lifecycle
Controller firmware, and iDRAC firmware.
• For updating Dell Lifecycle Controller and BIOS firmware on 13
th
generation of PowerEdge servers,
see the Dell Lifecycle Controller Graphical User Interface Version 2.05.05.05 For 13th Generation Dell
PowerEdge Servers User's Guide, available at http://topics-cdn.dell.com/pdf/idrac8-with-lc-
v2.05.05.05_User's%20Guide2_en-us.pdf
• For updating Dell iDRAC firmware on 13
th
generation of PowerEdge servers, see the Integrated Dell
Remote Access Controller 8 (iDRAC8) Version 2.05.05.05 User's Guide, available at http://topics-
cdn.dell.com/pdf/idrac8-with-lc-v2.05.05.05_User's%20Guide_en-us.pdf
• For other latest information related to Dell iDRAC and Dell Lifecycle Controller documentation, go to
http://www.dell.com/support/home/us/en/19/product-support/product/idrac8-with-lc-
v2.05.05.05/research
Modify your BIOS settings as follows:
14