Server Configuration

Each server in this example cluster meets the recommended hardware requirements specified in the ESM Installation Guide.

• 2 TiB of RAID 10 storage is provided via 15K RPM disks.
• The network interface runs at 1 GB.
• One 1 GB interface on each server will be interconnected by a cable.
• RedHat 7.7 is used with ESM 7.5 software with the APHA Module.
• The company’s internal DNS server is used for name-to-address translation for the cluster. This is generally the best choice, because there can be thousands of connectors, and dozens of ESM clients. Changing the ESM hostnames on this many machines would be difficult.
• Linux configuration files are used to define the hostname, the IP addresses for each interface, DNS server addresses, and the default route. In a corporate environment, a more common choice would be to set these values via DHCP. For the purposes of this example it is convenient to configure these on the machine directly, so what is going on can be seen. In any case, it is likely that the interconnect ports would be statically defined, since they connect to each other, and do not have access to a DHCP server.
• The shared disk partition and the metadata partition are allocated space via the Logical Volume Manager (LVM). This is strongly recommended that you use Logical Volume Manager (LVM) tools to manage disk space. It will be much easier for you to increase the disk space later using LVM tools.