There are four tiers of certification (I, II, III, IV). On top of all requirements of a Tier 1 data center, Tier 2 data center are required to have redundant (N+1) capacity components such as uninterruptable power supply (UPS), cooling systems and auxiliary generators. Formulated by Japan Data Center Council Outline of Data Center Facility Standard 2 (1) Purpose of Formulating Data Center Facility Standard Along with the increase of introduction of the cloud computing, various types of data centers are requested. Feel free to contact our sales by phone +852 3959 1888 or email sales@dataplugs.com to learn more about our data center facilities. Here is the skinny on what constitutes a Tier 4 data center. Cooling: Redundant Chillers / heat Distribution Equipment and Dedicated Cooling. Choosing the most suitable data center tier for a business depends primarily on two factors – availability and security needs. Their Tier Standards have been working on data center classification and sorting the good data centers from the beefed-up, great ones for over twenty years. However, the lack of backups and redundancy could put their businesses at risk. Downtime should not occur when there is planned maintenance and unplanned outages. The performance confirmation test(s): • Planned work will require most or all of the site infrastructure systems to be shut down affecting computer equipment, Mac Mini Hosting N + 1 Power Redundancies The cost is significantly cheaper than Tier 4 data centers. The higher the certification, the better designed and more reliable the data center is. The Uptime Institute has split the requirements up into four tiers that are ordered (helpfully) from lowest redundancy to highest redundancy. They are generally considered as Tier 3+ data centers in the marketplace. Guidelines for Specifying Data Center Criticality / Tier Levels Schneider Electric – Data Center Science Center White Paper 122 Rev 2 5 set a requirement for how the final data center performs. Static vs Dynamic IP Addresses, Technology It has an expected uptime of 99.995% (26.3 minutes of downtime annually), only 0.013% higher than a Tier 3 data center. 100% Network Uptime Data centers ratings scale from 1 to 4, with ‘Tier 4’ being the upper echelon and ‘Tier 1’ being a more simplified data center. Managed Colocation Management and Operations (M&O) Stamp of Approval, No more than 1.6 hours of downtime per year, N+1 fault tolerant providing at least 72-hour power outage protection, 2N+1 fully redundant infrastructure (the main difference between tier 3 and tier 4 data centers). The data center Tier levels are: Tier I. It has a single path for power and cooling. The infrastructure also needs to be completely switched off to carry out the annual inspection and repair work of the facility, causing potentially lengthy downtime. Data Centres 104 105 Tier Requirement Tier 1 Tier 2 Tier 3 Tier 4 Power Supply to Data Centre 1 1 2 (One Primary, One Backup) 2 (Both Primary) M&E Systems Supporting IT Equipment (e.g. Data Center Tier 2 data center has more infrastructure and measures to ensure less susceptibility to unexpected downtime comparing with Tier 1 data center. They have defined what a facility requires to have to reach a particular tier and then certified that it does meet those requirements – thus obtaining certification as a tier rated data centre. Tier 3 Tier 1 and Tier 2 data centers are not generally suitable for mission-critical workloads, unless you have no other choice and have contingency plan to manage how the business works during downtime. The standards are comprised of a four-tiered scale, with Tier 4 being the most robust. IP Addresses and Subnets Redundant and backup components including power and storage redundancies are little or non-existent. The Tier Standard is performance-based and therefore flexible to the changing industry. In that case, it may not be worth it to put in the extra investment to run in a tier 3 or 4 environment. Bare Metal Servers, Connectivity A Tier 4 facility can only be offline for less than half an hour during the same time period. Tier 2 data centers have the same minimum requirements as Tier 1; however, the single distribution path for Tier 2 centers operates with redundant power and cooling capacity components. Data centers in the Tier 2 category feature redundant capacity components with a single distribution path servicing the data centers. Tier 2 data center has more infrastructure and measures to ensure less susceptibility to unexpected downtime comparing with Tier 1 data center. Tier 3 / Tier 3+ data center offers the most cost-effective solution for the vast majority of medium to large businesses. Data Backup & Recovery Tier 3 data center has to meet all of the requirements of Tiers 1 & 2 as well as ensuring all equipment is dual-powered and has multiple uplinks. These features render Tier 2 data centers more reliable than Tier 1 because … Due to the heavy expectations of a Tier 4 data center, data center owners will often install multiple backup systems to keep data centers up and running in case of emergencies and natural disasters. n Provides actual 5-year availability for 16 major sites by Tier classification. Data center tier standards create a sense of consistency of what can be expected from a data center’s capabilities and level of service based on which tier requirements it meets. Ste. It has an expected uptime of 99.671% (28.8 hours of downtime annually). n Provides IT based definitions and performance requirements for each Tier Level. A data center built according to tier 3 data center specifications should satisfy two key requirements: redundancy and concurrent maintainability. With a minimal improvement in availability, but significantly higher cost than Tier 3 data center, most business will choose Tier 3 data center over Tier 4 data center. Dataplugs offers web hosting, dedicated servers and colocation in Hong Kong Tier 3+ data centers. 99.741 % uptime per annum. Custom Servers Cyber Security 178 With multiple paths for power and cooling and systems in place, servers can remain online during planned maintenance and outages. A Tier 2 data center is slightly less susceptible than a Tier 1 to disruptions from both scheduled and unscheduled activity. Not all data centers are created equal. A Tier 2 data center is also known as a Level 2 data center. To decide which data center to go for, you need to consider both availability and your IT needs. 2 Introduction This introduction is not part of Uptime Institute Data Center Site Infrastructure Tier Standard: Topology.It provides the reader with context for the application of the Standard. To be defined as Tier 2, a data center must adhere to the following: No more than 22 hours of downtime per annum. Uptime: 99.741%. 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