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Field Notice: FN – 72368 – Some DIMMs Might Fail Prematurely Due to a Manufacturing Deviation – Hardware Upgrade Available

Cisco announced Field Notice: FN – 72368 – Some DIMMs Might Fail Prematurely Due to a Manufacturing Deviation – Hardware Upgrade Available My personal recommendation please use ADDDC and PPR – It could prevent hardware failures … UCS-ML-128G4RT-H is in 2nd revision from 28-Oct-22. Problem Description A limited number of DIMMs shipped from Cisco are … Continue reading “Field Notice: FN – 72368 – Some DIMMs Might Fail Prematurely Due to a Manufacturing Deviation – Hardware Upgrade Available”

Add F1705 Alert to Cisco UCS Manager Plugin

New Cisco UCS firmware brings possibility to have notification about F1705 Alerts – Rank VLS. In latest version of Cisco UCS Manager Plugin for VMware vSphere HTML Client (Version 3.0(6)) we could add Custom fault addition for proactive HA monitoring. How to do it? Cisco UCS / Proactive HA Registration / Fault monitoring details / … Continue reading “Add F1705 Alert to Cisco UCS Manager Plugin”

Field Notice: FN – 70432 – Improved Memory RAS Features for UCS M5 Platforms – Software Upgrade Recommended – 4.2(1i)

I recommend upgrade to a Server Firmware Bundle that includes ADDDC Sparing to expand the memory error coverage – 4.2(1i). More info: Handling RAS events When BANK-level or RANK-level RAS events are observed (and PPR is enabled): Verify that no other DIMM faults are present (for example, an uncorrectable error) Schedule a maintenance window (MW). … Continue reading “Field Notice: FN – 70432 – Improved Memory RAS Features for UCS M5 Platforms – Software Upgrade Recommended – 4.2(1i)”

Fault Resilient Memory (FRM) for Cisco UCS

We can see annual incidence of uncorrectable errors is rissing. Here is one possibility – How to solved it with FRM. ESXi supports reliable memory. Some systems have reliable memory, which is a part of memory that is less likely to have hardware memory errors than other parts of the memory in the system. If … Continue reading “Fault Resilient Memory (FRM) for Cisco UCS”

Memory Controller May Hang While in Virtual Lockstep – fix in UCSM 4.1(1c)

SAP HANA is very intensive for memory operation. With ADDDC Sparing We can add System reliability. It is optimized by holding memory in reserve so that it can be used in case other DIMMs fail. But there Could be another problem with. Memory Controller May Hang While in Virtual Lockstep For more information – Intel® … Continue reading “Memory Controller May Hang While in Virtual Lockstep – fix in UCSM 4.1(1c)”

Proactive HA is working in VCSA 6.7 with Cisco UCS Manager Plugin for VMware vSphere HTML Client (beta Version 3.0(2))

Cisco has released the 3.0(2) beta version of the the Cisco UCS Manager VMware vSphere HTML client plugin. These version is working with vSphere 6.7. It’s currently running and enabled on 9 different clusters – 290 hosts. It works great so far. Here are the new and changed features in Release3.0(2): Included defect fixes Added … Continue reading “Proactive HA is working in VCSA 6.7 with Cisco UCS Manager Plugin for VMware vSphere HTML Client (beta Version 3.0(2))”