Okwangoku, uninzi lokutshintsha kwimarike, ngakumbi izitshixo ezindala, zisebenzisa umbane omnye kuphela. Ukuba unikezelo lwamandla aluphumeleli (njengokusilela kombane), utshintshi alukwazi ukusebenza ngokuqhelekileyo, okanye lude lukhubaze uthungelwano.Ubonelelo lwamandla oluNgafunekiyo sisisombululo esifanelekileyo kule ngxaki. Utshintsho oluyilwe ngonikezelo lwamandla olungafunekiyo lunokuphucula kakhulu uzinzo lwenethiwekhi kwaye luqinisekise ukusebenza okungaphazanyiswa kwezixhobo. Ke, yintoni unikezelo lwamandla olungafunekiyo kwaye kutheni utshintsho kufuneka lwamkele uyilo lonikezelo lwamandla olungafunekiyo?

Yintoni umbane ongafunekiyo?

Unikezelo lwamandla oludityanisiweyo lubhekisa kuyilo lwesixhobo sothungelwano esinye sisebenzisa izixhobo zombane ezimbini okanye ngaphezulu, kwaye unikezelo lwamandla ngalunye lunokuzimela ngokuzimeleyo isixhobo. Ngeli xesha, nangona unikezelo lwamandla aluphumeleli, ezinye izixhobo zombane ziya kuthwala ngokukhawuleza umthwalo wokubonelela umbane wezixhobo zokuqinisekisa ukusebenza okuqhelekileyo kwezixhobo. Iiseva okanye uluhlu lwediski ludla ngokuthatha uyilo lonikezelo lwamandla olungafunekiyo, olunokuthi luthintele ngokufanelekileyo ukuphuma kombane okanye okunye ukusilela (okufana nexesha lokuphumla) kwezixhobo. Ngoku, uyilo lonikezelo lombane olungafunekiyo luya luthandwa ngakumbi kwiiswitshi zenethiwekhi kunye nezinye izixhobo ngenxa yeenzuzo zalo ezizodwa.

Isishwankathelo sonikezelo lombane olungafunekiyo

Ukungafuneki kobonelelo ngombane ngokubanzi kwamkela iindlela zobonelelo lwamandla ezifana nokungafuneki ngokupheleleyo kunye nokungafuneki ngokuyinxenye. Ukugqithiswa ngokupheleleyo (okukwabizwa ngokuba yi-1 + 1 redundancy) kuthetha ukuba iswitshi ixhotyiswe ngeemodyuli zamandla amabini. Ukuba enye imodyuli yamandla iyasilela, enye imodyuli yamandla ingaqhubeka nokubonelela ngombane ngokuqhelekileyo ngaphandle kokuchaphazela umsebenzi womnatha. Ukungafuneki ngokuyinxenye (1+N redundancy) kuthetha ukuba “ubonelelo lwamandla olongezelelweyo olu-1” lunika amandla kwizitshixo zika-“N”. Nceda uqaphele ukuba ukungabikho konikezelo lwamandla olungafunekiyo lwendawo kukuba kukho ixesha lokutshintsha kombane, oko kukuthi, unikezelo lwamandla okuxhasayo lufuna ukubonelela ngombane kwisixhobo emva kwexesha elithile, elinokubangela ukuphazamiseka kwenethiwekhi. Umzobo we-1 ubonisa iindlela ezahlukeneyo zokusebenza zokungafuneki ngokupheleleyo kunye nokuchithwa okuyingxenye.

Ngokubanzi, unikezelo lwamandla amabini kunxibelelwano lwenethiwekhi luthatha uyilo lonikezelo lwamandla olungafunekiyo ngokupheleleyo. Nceda uqaphele ukuba phantsi kweemeko eziqhelekileyo, zombini izinikezelo zombane ziya kuqhutywa kwaye zisebenze ngexesha elinye. Nangona kunjalo, ngenxa yabenzi bezixhobo ezahlukeneyo, unikezelo lwamandla olugciniweyo lolunye utshintsho olungafunekiyo ngokupheleleyo olunikezelwa ngabavelisi lusenokungasebenzi.