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The servers listed in the table below represent hardware that LexEVS has been tested on.


These servers do not represent the minimum hardware required for loading any terminology. The LexEVS Local Runtime performs adequately in an environment with a memory limit of 4GB, but users cannot load larger OWL files, such as the full NCI Thesaurus or NCI Metathesaurus, in such environments. Users will have to load such terminologies on more powerful hardware. There does not exist a list showing the minimum hardware for a given terminology. Please refer to the VKC Support page for more information.

Testing Environments

Linux Server

Linux Server

Linux VM Server



Dell Poweredge 2900

Penguin Computing
Tempest 2900

Guest OS Linux

Dell Latitude


2 x Intel® Xeon™ E5405
Quad Core Processors 2.00GHz

Dual AMD Opteron 248 processors (64 bit)

AMD Dual-Core 3220 Opteron

1 x Intel® Core-Duo™ Processor 2.6 GHz


32 GB

16 GB

6 GB

8 GB

Local Disk

3.6 TB Raid 5 disk array

250 GB Raid 1 disk
drive(s) 250 GB stand alone disk drive

50 GB

System 1 x 80GB


CentOS release 7.0

Fedora Core 22

Red Hat Enterprise Linux Server
release 5.5 (Tikanga)

Windows 10