{"id":4287,"date":"2020-10-30T21:58:43","date_gmt":"2020-10-30T20:58:43","guid":{"rendered":"https:\/\/webhosting.de\/?p=4287"},"modified":"2020-10-30T21:58:43","modified_gmt":"2020-10-30T20:58:43","slug":"server-datacenter","status":"publish","type":"post","link":"https:\/\/webhosting.de\/da\/server-rechenzentrum\/","title":{"rendered":"Server (datacenter)"},"content":{"rendered":"<p>Udtrykket datacenter omfatter den bygning eller de lokaler, hvor de centrale databehandlingssystemer er placeret. <a href=\"https:\/\/webhosting.de\/da\/switch-rechenzentren-zahlen-geld-fuer-server-abwaerme\/\">Server<\/a> af en virksomhed, en organisation eller et universitet. Af sikkerhedshensyn er disse enheder godt beskyttet og er normalt kun tilg\u00e6ngelige for en lille gruppe personer med s\u00e6rlig tilladelse. Nedenfor kan du se de vigtigste detaljer om et datacenters opbygning og opgaver.<\/p>\n<p>Server (datacenter): en virksomheds hjerne<br \/>\nEt datacenter (RZ) er designet til at behandle og h\u00e5ndtere store datam\u00e6ngder. De store finans- og teknologikoncerner har normalt deres egne centre og ansvarlige it-afdelinger. Mindre virksomheder eller endda privatpersoner har mulighed for at outsource disse tjenester. De lejer et it-center og anskaffer sig serverkapacitet til deres egne behov. Forbindelsen mellem datacenteret og kunden sker via sikre datalinjer.<br \/>\nFordelen ved et datacenter er, at det giver en h\u00f8jtydende infrastruktur, som ogs\u00e5 omfatter driften af parallelle systemer, s\u00e5 man er forberedt p\u00e5 fejl. Str\u00f8mforsyningen er ogs\u00e5 udstyret med to uafh\u00e6ngige str\u00f8mforsyningsenheder, s\u00e5 driften kan forts\u00e6tte i tilf\u00e6lde af en fejl. For at minimere risikoen for fejl er der normalt ogs\u00e5 installeret generatorer til en afbrydelsesfri str\u00f8mforsyning (UPS). Et effektivt klimaanl\u00e6g er ogs\u00e5 absolut n\u00f8dvendigt i et datacenter for at forhindre, at de h\u00f8jtydende computere overophedes.<\/p>\n<p>Organisering af RZ<br \/>\n- Systemteknik<br \/>\nDet er her, at datacentrets hardware bliver passet. Installationer og kabelf\u00f8ring udf\u00f8res af specialiserede systemteknikere. I tilf\u00e6lde af en fejlfunktion foretager de ogs\u00e5 rettidige analyser og visse reparationer.<br \/>\n- Systemforvaltning<br \/>\nHer udf\u00f8res konfigurationer, s\u00e5 datacenteret kan genkende og betjene nye enheder under drift. Afh\u00e6ngigt af datacentrets st\u00f8rrelse er softwareinstallation og administration ogs\u00e5 placeret her. Der installeres nye versioner af hj\u00e6lpeprogrammer og udgivelser i produktionen, som p\u00e5 forh\u00e5nd er blevet testet og godkendt af driften. Mange virksomheder opretholder deres egne testmilj\u00f8er til dette form\u00e5l.<br \/>\n- Drift<br \/>\nDenne del omfatter operat\u00f8rernes drift og overv\u00e5gning af selve computersystemet i datacenteret. P\u00e5 grund af operativsystemernes tekniske fremskridt har deres opgave \u00e6ndret sig afg\u00f8rende p\u00e5 grund af de tekniske fremskridt. Mange af de oprindelige opgaver er blevet overfl\u00f8dige p\u00e5 grund af automatiseringen af processer. Ikke desto mindre skal mennesker fortsat sikre vigtige funktioner i interaktion med maskinen, is\u00e6r i tilf\u00e6lde af systemfejl eller -anomalier (undtagelser).<\/p>\n<p>Sikkerhed<br \/>\nSom du kan se, er sikkerhed en topprioritet i et datacenter, og det er forst\u00e5eligt nok, n\u00e5r man t\u00e6nker p\u00e5 den dyre teknologi, der er installeret der. Ud over de restriktive adgangsregler l\u00e6gges der is\u00e6r stor v\u00e6gt p\u00e5 brandbeskyttelse. Det begynder med de strukturelle foranstaltninger, f.eks. fornuftig opdeling af rum eller dobbelte gulve, som giver mulighed for ekstra k\u00f8ling af maskinerne nedefra. Der anvendes meget f\u00f8lsomme r\u00f8gdetektionssystemer for at kunne opdage en eventuel brand p\u00e5 et tidligt tidspunkt. Medarbejderne i et datacenter er ogs\u00e5 aktivt uddannet i brugen af egnede brandslukkere for at kunne reagere hurtigt p\u00e5 mindre h\u00e6ndelser. Om n\u00f8dvendigt s\u00e6ttes ogs\u00e5 automatiske slukningsanl\u00e6g i drift, som bek\u00e6mper branden ved at udsende specielle slukningsgasser.<br \/>\nHvis et datacenter skulle g\u00e5 helt ned i tilf\u00e6lde af en katastrofe, har mange operat\u00f8rer et backup-datacenter klar, som er placeret et andet sted. Backup-datacenteret er bygget p\u00e5 samme m\u00e5de for at muligg\u00f8re den mest problemfri drift. Der investeres alts\u00e5 meget i sikkerheden i et datacenter, hvilket giver god mening, n\u00e5r man t\u00e6nker p\u00e5, at en finanskoncern f.eks. ville v\u00e6re n\u00f8dt til at indstille driften helt i tilf\u00e6lde af en udfald i flere dage. Det skyldes, at udelukkelse af handel og transaktioner hurtigt ville f\u00f8re til et sammenbrud.<\/p>\n<p>Datasikkerhed<br \/>\nKunde- og transaktionsdata, hvis v\u00e6rdi er n\u00e6sten <a href=\"https:\/\/webhosting.de\/da\/cloud-geschaeft-von-alphabet-mit-milliardenverlust\/\">Tab<\/a> kan f\u00f8re til et enormt tab af prestige og skade p\u00e5 omd\u00f8mme. M\u00e5ske husker du et eksempel fra banksektoren, hvor kundedata gik tabt p\u00e5 grund af datatyveri, hvilket f\u00f8rte til store forvridninger p\u00e5 grund af salget til skattemyndighederne og de efterf\u00f8lgende krav, der blev udl\u00f8st af dette. Det er klart, at ingen virksomhed kan og vil tillade det med sin <a href=\"https:\/\/webhosting.de\/da\/personenbezogene-daten-sozialen-netzwerken\/\">Data<\/a> handles. Fortrolighed og integritet af kunde- og transaktionsdata er v\u00e6sentlige komponenter i databeskyttelse. Derfor bruges der ogs\u00e5 mange penge p\u00e5 dette omr\u00e5de for at sikre sig mod uautoriseret adgang for medarbejdere eller hackere ved hj\u00e6lp af krypteringsteknikker og firewalls.<\/p>","protected":false},"excerpt":{"rendered":"<p>Der Begriff Rechenzentrum umfasst das Geb\u00e4ude oder die R\u00e4umlichkeiten, in welchem sich die zentralen Server einer Firma, Organisation oder Universit\u00e4t befinden. Aus Sicherheitsgr\u00fcnden sind diese Einheiten gut gesch\u00fctzt und gew\u00f6hnlich nur einem kleinen Personenkreis mit Spezialbewilligung zug\u00e4nglich. Nachstehend sehen Sie die wichtigsten Details zum Aufbau und zu den Aufgaben eines Rechenzentrums. Server (Rechenzentrum): das Hirn 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