Patching MeltDown and Spectre fixed will impact the appliance running on UCS servers?

thamilIniyan.shanmugam · ‎03-28-2018

Hi All,

Cisco had released Meltdown and Spectre fix for Cisco UCS B-Series M4 Blade Servers (except B260, B460).Can I know if this patches will impact the appliance which running on the blade server.For the example this fixed will cause any impact to CUCM 10.5?Can anyone share document which stated "No Impact to any appliance if we install the fix to blade servers?

Iniyan

Leo Laohoo · ‎03-28-2018

Yes because in order for the patches to be applied the appliance will need to be rebooted (using the CIMC).

thamilIniyan.shanmugam · ‎03-28-2018

Hi Leo,

Can we know the patch/fix will introduce new problems to CUCM 10.5,CUC or Subscribers which running on blade server? Does anyone tested the fix and it's running stable without introducing new problem to the appliance which running on blade servers? Any Cisco document proof this?

Iniyan

Leo Laohoo · ‎03-28-2018

@thamilIniyan.shanmugam wrote:

Can we know the patch/fix will introduce new problems to CUCM 10.5,CUC or Subscribers which running on blade server?

Nope.

@thamilIniyan.shanmugam wrote:

Does anyone tested the fix and it's running stable without introducing new problem to the appliance which running on blade servers?

Nope.

@thamilIniyan.shanmugam wrote:

Any Cisco document proof this?

Nope.
I upgraded two of my new 8540 (C240 M4 chassis) CIMC to 3.0(4a). Part of the patch covers a BIOS upgrade. This is where the Intel Meltdown and SPECTRE patch. There is no way to upgrade the BIOS without rebooting the appliance.

thamilIniyan.shanmugam · ‎03-29-2018

Thanks Leo. Really helpful. But my organization need a document from Cisco stated there will be no new problem will be introduce to appliances like CUCM or CUC after patch. I understand one of the impact will be reboot the CIMC.

Leo Laohoo · ‎03-29-2018

@thamilIniyan.shanmugam wrote:

But my organization need a document from Cisco stated there will be no new problem will be introduce to appliances like CUCM or CUC after patch.

Uhhhh ... Good luck with that. No manufacturer is going to issue this "document". Legal department will going to go bat-sh1t-crazy with this request.

thamilIniyan.shanmugam · ‎03-29-2018

Thanks Leo. Really appreciate your replies.

Iniyan