[LU-1422] Cleanup Lustre cray specific code

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.3.0, Lustre 2.6.0
• Affects Version/s: Lustre 2.3.0
• Environment: Cray nodes running Lustre
• Assignee: Zhenyu Xu
• Reporter: James A Simmons

Description

In the early days of Lustre the cray Catamount system was supported. This required special blocks of code but today CRAY system use a standard Linux system so these special blocks of code are not only might not be needed but could hind performance on the CRAY platform. Such was the case recently uncoverd while doing IR testing. This ticket will be a peer view of what is and is not needed anymore.