{"id":30030,"date":"2019-10-31T21:33:18","date_gmt":"2019-10-31T18:33:18","guid":{"rendered":"https:\/\/prohoster.info\/blog\/koe-chto-pro-raspredelyonnye-data-tsentry-dlya-biznesa\/"},"modified":"2019-10-31T21:33:18","modified_gmt":"2019-10-31T18:33:18","slug":"koe-chto-pro-raspredelyonnye-data-tsentry-dlya-biznesa","status":"publish","type":"post","link":"https:\/\/prohoster.info\/no\/blog\/koe-chto-pro-raspredelyonnye-data-tsentry-dlya-biznesa","title":{"rendered":"Noe om distribuerte datasentre for virksomheter","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Noe<\/a><\/noindex>
\nFor a few days now, the Internet has celebrated its 30th anniversary. Over this time, the informational and digital needs of businesses have grown to such an extent that we are no longer talking about corporate servers or even the necessity of being located in a data center, but rather the rental of a whole network of data processing centers along with a range of accompanying services. This applies not only to large global projects with big data (giants have their own data centers), but even to medium-sized companies with frequent database position updates (for example, online stores) and services with high-speed data exchange (for example, banks).
\n<\/a><\/noindex><\/p>\n

Why does business need a distributed data center system? <\/h2>\n

\nSuch a system consists of IT complexes, geographically distributed according to the principle: a primary data center and regional data centers. They are initially equipped considering possible information flows and business processes of modern developing companies and ensure the continuity of these flows and processes.<\/p>\n

\u258dWhy distributed? <\/h3>\n

\nFirstly, due to the risk of putting all eggs in one basket. Currently, fault-tolerant solutions are in demand that can ensure the absolutely continuous operation of corporate applications, services, and websites under any conditions. Even in the event of an apocalypse. Such computing infrastructures must not only securely store data but also minimize the downtime of a company's IT services (read: business), whether during an epidemic of Roskomnadzor blockages, natural disasters, real technological catastrophes, or any other unforeseen circumstances. It is no coincidence that these solutions are referred to as disaster recovery (Disaster Recovery). <\/p>\n

For this, the locations of the computing complexes serving the company must be removed from each other at a safe distance following a specific scheme (see the table and illustration below). If necessary, a disaster recovery plan (DR-Plan) is employed, and services are automatically transferred to another site in the network using fault-tolerant methods and software solutions that are optimal for each specific case (data replication, backup, and more).<\/p>\n

For the second, to enhance performance. In normal mode (not emergency, but during peak loads), distributed data centers are designed to improve company performance and minimize information losses (for example, during DDoS attacks). This includes load balancing complexes between computing nodes: the load is evenly redistributed, and in the event that one of the nodes fails, its functions will be taken over by other nodes in the complex.<\/p>\n

For the third, for effective operation of remote branches. For companies with multiple divisions, centralized storage and processing solutions are used with geographically distributed replication. Each branch can operate with its own data volume, which will be consolidated into a single database at the central office. Changes in the central database are reflected in the databases of the divisions.<\/p>\n

\u258dStructure of Distributed Data Centers<\/h3>\n

\nGeographically distributed data centers are divided into four types. To the external user, they appear as a single system: management occurs through one service and support interface. <\/p>\n

\"Noe<\/a><\/noindex><\/p>\n

\"Noe
\nGeographically Distributed Data Centers<\/i><\/p>\n

\u258dObjectives for which businesses need distributed data centers:<\/h3>\n

\nContinuity of data processing. Uninterrupted operation is required to address inevitably arising technical issues without halting business processes, even when some communication channels and a significant part of the system fail. By the way, the ability of the system to perform its functions within the planned time considering the average safe operating time and the recovery time (Recovery Time Objective<\/a><\/noindex>) defines the level of reliability of the data center. There are four levels: TIER1, TIER2, TIER3, TIER4; the higher the rating, the more reliable the center's equipment and the higher the standard of its infrastructure. <\/p>\n

\u00d8kning av ytelse og kapasitet. Ved behov (toppbelastninger) kan man \u00f8ke effekten og forbedre effektiviteten i backup datasentre gjennom stordriftsfordeler: maksimal utnyttelse av beregningsressursene i hele det distribuerte systemet. Skalerbarhet gir fleksible beregningsmuligheter p\u00e5 foresp\u00f8rsel takket v\u00e6re dynamisk konfigurasjon.<\/p>\n

Katastrofebehandling. Sikres ved \u00e5 reservere beregningskapasitet p\u00e5 en fjern lokasjon. Systemets tilgjengelighet oppn\u00e5s ved en spesifikk innstilling av Recovery Point Objective (RPO) og Recovery Time Objective (RTO) (sikkerhetsniv\u00e5et og hastigheten p\u00e5 gjenoppretting avhenger av planen).<\/p>\n

Distribuerte tjenester. IT-ressurser og tjenester fra selskapet er adskilt fra den grunnleggende infrastrukturen og tilbys i et flerbruks milj\u00f8 p\u00e5 foresp\u00f8rsel og i n\u00f8dvendig omfang.<\/p>\n

Geografisk lokalisering av tjenester. For \u00e5 utvide m\u00e5lgruppen for merkevaren og gj\u00f8re selskapet tilgjengelig p\u00e5 nye geografiske markeder.<\/p>\n

Optimalisering av utgifter. Oppretting og vedlikehold av eget datasenter er veldig kostnadskrevende<\/a><\/noindex> prosjekt. For de fleste selskaper, spesielt store, geografisk distribuerte, og de som planlegger nye tilstedev\u00e6relsessteder p\u00e5 markedet, vil outsourcing av IT-infrastruktur hjelpe betydelig med \u00e5 spare.<\/p>\n

Hvorfor det er fordelaktig for virksomheter \u00e5 ha et datasenter \u00abi n\u00e6rheten\u00bb<\/h2>\n

\nFor mange moderne tjenester og forretningsapplikasjoner kan hastigheten p\u00e5 tilgang til plattformen v\u00e6re kritisk. Denne hastigheten avhenger f\u00f8rst og fremst av avstanden mellom plattformene i det distribuerte datasenteret. Hvis avstanden er kort, forenkles kommunikasjonen og ytelsen forbedres p\u00e5 grunn av redusert signalforsinkelse (latency). Dette er spesielt viktig ved backup. I en fiberoptisk kabel er lysutbredelsens forsinkelse omtrent 5 ms\/km. Latency p\u00e5virker tiden det tar \u00e5 utf\u00f8re inn- og utdataoperasjoner, som er omtrent 5-10 ms. <\/p>\n

Siden tjenestene m\u00e5 v\u00e6re i kontinuerlig drift, samtidig med at de har h\u00f8y tilgjengelighet og minimal nedetid, er det fordelaktig for virksomheter \u00e5 leie IT-infrastruktur geografisk n\u00e6r brukerne p\u00e5 m\u00e5lmarkedene.<\/p>\n

Tilgangshastigheten til plattformen avhenger ogs\u00e5 av utstyret. For eksempel kan man i v\u00e5rt nye datasenter i \"IT-parken\" i Kazan f\u00e5 en internettlinje p\u00e5 100 Mbit\/s for sin virtuelle server med maksimal komforttilgang. <\/p>\n

Bedrifter med stort internasjonalt omfang b\u00f8r godt bruke utenlandske plattformer for datalagring for \u00e5 spare trafikostnader og redusere lastetiden for nettsider for utenlandske brukere. Lang lastetid er en \u00e5rsak til lav rangering i Googles s\u00f8keresultater.<\/a><\/noindex> Og, viktigere, \u00e5rsaken til at m\u00e5lgruppen forlater nettstedene dine (h\u00f8y avvisningsrate som f\u00f8rer til tap av leads).<\/p>\n

Hva er fordelene med reserve datasentre?<\/h2>\n

\nGitt den ofte ustabile situasjonen i Russland n\u00e5r det kommer til informasjonssikkerhet (for eksempel den nylige massive blokeringen av IP-adresser av Roskomnadzo, som ogs\u00e5 p\u00e5virket nettsteder som ikke hadde noe med Telegram \u00e5 gj\u00f8re), er det praktisk \u00e5 plassere en del av IT-infrastrukturen til virksomheten utenfor det russiske rettsomr\u00e5det. For eksempel, ved \u00e5 leie servere i et sveitsisk datasenter, omfattes du av sveitsiske databeskyttelseslover, som er ganske strenge. Spesielt: hverken statlige organer i Sveits (bortsett fra regjeringen i spesielle tilfeller), eller rettsh\u00e5ndhevende myndigheter i andre land har tilgang til noen informasjon p\u00e5 \"svenske\" servere. Uten klientens viten kan ikke data bli forespurt fra datasentre og leverand\u00f8rer.<\/p>\n

Implementering av et reserve datasenter (eller hosting) p\u00e5 en avsides (utenlandsk<\/a><\/noindex>) plattform er strategisk fornuftig ogs\u00e5 ved behov for smertefri migrasjon av forretningskritiske tjenester for deres kontinuerlige drift. <\/p>\n

Litt mer om Kazan datasenteret<\/h2>\n

\nSiden vi snakker om datasenteret i Kazan, tillater vi oss et lite reklameavsnitt. \"IT-parken\", der datasenteret ligger, er den st\u00f8rste teknologiparken innen h\u00f8yteknologi i Tatarstan. Dette er et datasenter p\u00e5 et omr\u00e5de p\u00e5 en kvadratkilometer niv\u00e5 TIER3 med en kapasitet p\u00e5 2,5 MW og mulighet for \u00e5 plassere mer enn 300 stativ. <\/p>\n

\"Noe
\nSikkerheten p\u00e5 fysisk niv\u00e5 er sikret med to lag av bev\u00e6pnet vakthold, kameraer langs perimeteren, et passeringssystem ved inngangen, biometrisk adgangskontroll (fingeravtrykk) i maskinrommet og til og med dresskode for bes\u00f8kende (k\u00e5per, spesielle skoovertrekk med automat for p\u00e5kledning).<\/p>\n

\"Noe
\nAlle tekniske rom og serverhaller er utstyrt med et automatisk gass slukkeanlegg med r\u00f8ykdetektorer, som gj\u00f8r det mulig \u00e5 fjerne brann\u00e5rsaken uten \u00e5 skade h\u00f8yteknologisk utstyr. Energisparende, kj\u00f8le- og ventilasjonssystemer er implementert p\u00e5 h\u00f8yeste niv\u00e5, og n\u00f8kkelkomponentene i disse systemene er plassert i separate rom.<\/p>\n

\"Noe
\nVi har satt i drift v\u00e5r egen hermetiske sone i datasenteret \u00abIT-parken\u00bb. Datasenteret har en SLA p\u00e5 99.982%, som betyr at det fullt ut oppfyller h\u00f8ye internasjonale krav til operasjonell robusthet for datasentre. Det har lisenser fra FSTEK og FSB, samt PCI-DSS sertifikat, noe som gj\u00f8r det mulig \u00e5 plassere utstyr for organisasjoner som arbeider med personopplysninger (banker og andre). Og, som alltid, er prisene p\u00e5 virtuelle servere fra hostingleverand\u00f8ren RUVDS i dette datasenteret ikke forskjellig fra prisene p\u00e5 VPS<\/a><\/noindex> andre av v\u00e5re datasentre i Moskva, St. Petersburg, London, Z\u00fcrich.<\/p>\n

\"Noe<\/a><\/noindex>
\n
Kilde: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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