Pakadali pano, masiwichi ambiri pamsika, makamaka masiwichi akale, amangogwiritsa ntchito mphamvu imodzi yokha. Ngati magetsi akulephera (monga kulephera kwa magetsi), kusinthako sikungathe kugwira ntchito bwino, kapena kufooketsa maukonde. Ma switch opangidwa ndi magetsi ochulukirapo amatha kupititsa patsogolo kukhazikika kwa netiweki ndikuwonetsetsa kuti zida zikugwira ntchito mosadodometsedwa. Ndiye, magetsi osafunikira ndi chiyani ndipo chifukwa chiyani chosinthira chiyenera kutengera kapangidwe kamagetsi kocheperako?

Kodi magetsi opanda ntchito ndi chiyani?

Kuphatikizika kwamagetsi kumatanthawuza kapangidwe ka chipangizo chimodzi cha netiweki chogwiritsa ntchito mphamvu ziwiri kapena zingapo, ndipo mphamvu iliyonse imatha kuyimitsa chipangizocho. Panthawiyi, ngakhale magetsi atalephera, magetsi ena amanyamula katundu wamagetsi nthawi yomweyo kuti atsimikizire kuti zipangizozo zimagwira ntchito bwino. Maseva kapena ma disk array nthawi zambiri amatengera kapangidwe kamagetsi kocheperako, komwe kumatha kupewa kuzimitsa kwamagetsi kapena kulephera kwina (monga kutsika) kwa zida. Tsopano, kapangidwe kamagetsi kocheperako kakuchulukirachulukira pakusintha kwamaneti ndi zida zina chifukwa chaubwino wake wapadera.

Mwachidule za ma switch owonjezera magetsi

Kuchepetsa mphamvu yamagetsi nthawi zambiri kumatengera njira zoperekera magetsi monga kuchotsedwa kwathunthu ndi kuchotsedwa pang'ono. Kuperewera kwathunthu (komwe kumatchedwanso 1 + 1 redundancy) kumatanthauza kuti chosinthira chili ndi ma module awiri amphamvu. Ngati gawo limodzi lamagetsi likulephera, gawo lina lamagetsi likhoza kupitiriza kupereka mphamvu nthawi zonse popanda kukhudza ntchito ya intaneti. Kuchepetsa pang'ono (1+N redundancy) kumatanthauza kuti "1 mphamvu yowonjezera" imapereka mphamvu ku ma switch a "N". Chonde dziwani kuti kuipa kwa magetsi osafunikira m'derali ndikuti pali nthawi yosinthira magetsi, ndiye kuti, mphamvu yosungirako imayenera kupereka mphamvu ku chipangizocho pakapita nthawi, zomwe zingayambitse kusokonezeka kwa maukonde. Chithunzi 1 chikuwonetsa njira zosiyanasiyana zogwirira ntchito za kubwezeredwa kwathunthu ndi kuchotsedwa pang'ono.

Nthawi zambiri, magetsi apawiri mu switch ya netiweki amatengera kapangidwe kamagetsi kocheperako. Chonde dziwani kuti nthawi zonse, mphamvu zonse ziwiri zidzayatsidwa ndikugwira ntchito nthawi imodzi. Komabe, chifukwa cha opanga zida zosiyanasiyana, mphamvu zosunga zobwezeretsera za masiwichi ochepera operekedwa ndi opanga zimathanso kukhala zopanda ntchito.