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Cisco Bug: CSCuo97907 - Core Multi Processing Policy not limiting core use with certain CPUs

Last Modified

Jul 06, 2020

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(3b)A 2.1(3b)B 2.2(2c)A

Description (partial)

Symptom:
Blades using a Core Multi Processing policy do not seem to actually honor the policy, but it does show up when booting into BIOS. For example, implementing a policy of one should only show two cores in use. However, in testing with blades using certain CPUs, running ESXi 5.5, running esxtop shows more cores in use.

Conditions:
Blades (tested on B200 M3) with E5-2643 and E5-2609 CPUs don't appear to honor the changes of a BIOS policy that utilizes the Core Multi Processing option.

This defect can Also affect B200 M4 with E5-2683 v3. Other processors may be affected besides what is listed here.

Related Community Discussions

BIOS Policies and Core Multi Processing
Hi, We are trying to use the Core Multi Processing feature in the BIOS policy to mask the number of CPUs available on a server for Oracle licencing purposes. I can set this to 3 (so the dual socket server should present 6 cores) and then use this policy against the relevant Service Profile Template and the Service Profile for the server in question. When I boot the server with this proflle applied against it the BIOS still sees 16 cores (2 x 8 Core CPU). I have left it to boot, it is currently an ...
Latest activity: Mar 27, 2017
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