Maintenance Technology September 2016 - 72

11 understanding the operating context of the system, particularly those redundancy aspects. Consideration must be given to what parts of the redundancy are hot-standby or cold-standby, and if the system being operated and maintained maximizes system uptime. If so, have the operational checks been optimized leveraging scientific methodologies which are sensible and defensible? schedules which are wasteful because they d o n ' t h ave t h e s a m e e f f e c t . I n fa c t , t h e maintenance task may cause the failure that the task was intended to prevent. It also exposes workers' health and safety, as well as our precious environment, to the risk of asset failure while the unnecessary task is being performed. The comprehensive database resulting from a RCM analysis includes the operating context, RCM information worksheet and RCM decision worksheet, all of which can be leveraged for the entire life cycle of the asset. The fact that the RCM analysis is a living document makes it possible to adapt to changing circumstances without having to reconsider all maintenance policies and demonstrate that maintenance programs are built on rational foundations, thereby meeting the audit requirements of regulators and standards. M o d e r n d a t a ce n te r s e m p l oy re d u n d a n t components and systems designed to maximize a facility's uptime. Component and system redundancies are intended to allow for concurrent maintainability and/or fault tolerance while sustaining IT processes. Paramount to successful operation and maintenance is These redundancies within a data center are an arrangement of like components, each having similar control devices. The redundant (protective) component is configured to support the protected component. The RCM process analyzes failure modes and effects to understand the failure consequences, then asks a group of Subject Matter Experts (SMEs - who know the asset best) if the failure is evident to operators under normal operating conditions and if there is a proactive task that is technically feasible and worth doing to reduce or eliminate those consequences. On redundant systems, in many instances there are failure modes that are not evident to the operator under normal operating conditions and may only become evident under multiple failure conditions. These are 'hidden' failures requiring the identification of tasks to secure the availability needed to reduce the probability of a multiple failure to a tolerable level. A task that reduces the probability of a 'multiple failure' could be an 'on-condition' task where there is a clear potential failure condition which is manageable. Ex: "Check unit temperature level" may be too vague. A possible alternative: "Visually inspect Thermal Unit 14-a's temperature using SOP S327 (f). If above 145°F, schedule for repair at next available downturn" or "custom-developed box containing code that can no longer be modified, update operating context and identify failure mode, schedule replacement with coded device that allows for user interface at earliest downtime". Another task could be a scheduled restoration if there is an age at which there is a rapid increase in the probability of failure. Perhaps a task could be a scheduled discard if there is an age at which there is a rapid increase in the probability of failure. WWW.SMRP.ORG 10127-4056 SMRP Solutions SE.indd 11 8/22/16 9:43 AM http://WWW.SMRP.ORG

Table of Contents for the Digital Edition of Maintenance Technology September 2016

Editorial
Uptime
On The Floor
Old-School Approach To New-World Technology
Art Meets Reliability Science
Commit To Safety
Robot-Human Interaction Getting Safer
Sanitary, Stainless Conveyors Not The Same
Reduce Hidden Process-Safety Costs
Pace Your Reliability Program
Win The War With 'Lubrication By Design'
SAP Tips And Tricks
Understand Pump Vibration
Select The Right Relay
Bearing Care
Clear Up HOA Confusion
Potato Waste Becomes Clean Water, Energy
Products
Showcase
Ad Index
Final Thought
Maintenance Technology September 2016 - 1
Maintenance Technology September 2016 - Cover1
Maintenance Technology September 2016 - Cover2
Maintenance Technology September 2016 - 1
Maintenance Technology September 2016 - 2
Maintenance Technology September 2016 - 3
Maintenance Technology September 2016 - Editorial
Maintenance Technology September 2016 - 5
Maintenance Technology September 2016 - Uptime
Maintenance Technology September 2016 - 7
Maintenance Technology September 2016 - On The Floor
Maintenance Technology September 2016 - 9
Maintenance Technology September 2016 - Old-School Approach To New-World Technology
Maintenance Technology September 2016 - 11
Maintenance Technology September 2016 - 12
Maintenance Technology September 2016 - 13
Maintenance Technology September 2016 - 14
Maintenance Technology September 2016 - 15
Maintenance Technology September 2016 - Art Meets Reliability Science
Maintenance Technology September 2016 - 17
Maintenance Technology September 2016 - 18
Maintenance Technology September 2016 - 19
Maintenance Technology September 2016 - Commit To Safety
Maintenance Technology September 2016 - 21
Maintenance Technology September 2016 - 22
Maintenance Technology September 2016 - 23
Maintenance Technology September 2016 - Robot-Human Interaction Getting Safer
Maintenance Technology September 2016 - 25
Maintenance Technology September 2016 - Sanitary, Stainless Conveyors Not The Same
Maintenance Technology September 2016 - 27
Maintenance Technology September 2016 - 28
Maintenance Technology September 2016 - Reduce Hidden Process-Safety Costs
Maintenance Technology September 2016 - 30
Maintenance Technology September 2016 - Pace Your Reliability Program
Maintenance Technology September 2016 - 32
Maintenance Technology September 2016 - 33
Maintenance Technology September 2016 - 34
Maintenance Technology September 2016 - 35
Maintenance Technology September 2016 - Win The War With 'Lubrication By Design'
Maintenance Technology September 2016 - 37
Maintenance Technology September 2016 - 38
Maintenance Technology September 2016 - SAP Tips And Tricks
Maintenance Technology September 2016 - Understand Pump Vibration
Maintenance Technology September 2016 - Select The Right Relay
Maintenance Technology September 2016 - Bearing Care
Maintenance Technology September 2016 - 43
Maintenance Technology September 2016 - Clear Up HOA Confusion
Maintenance Technology September 2016 - Potato Waste Becomes Clean Water, Energy
Maintenance Technology September 2016 - 46
Maintenance Technology September 2016 - 47
Maintenance Technology September 2016 - 48
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Maintenance Technology September 2016 - 50
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Maintenance Technology September 2016 - Showcase
Maintenance Technology September 2016 - Ad Index
Maintenance Technology September 2016 - 55
Maintenance Technology September 2016 - Final Thought
Maintenance Technology September 2016 - Cover3
Maintenance Technology September 2016 - Cover4
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