在多數(shu)(shu)情(qing)況下，觸發停機的特定事件是不可預(yu)知(zhi)的。企業花費數(shu)(shu)千(qian)萬美(mei)元設計建設數(shu)(shu)據中心(xin)的冗余(yu)基礎設施和自動故障轉移系統，以(yi)彌補(bu)不可預(yu)測(ce)的問(wen)題。但是根據定義(yi)，這個目(mu)標是無(wu)法達到的。

英(ying)國數(shu)(shu)(shu)據中心運營商UKFast公司日前宣布，一(yi)家承包商在12月12日上午意外(wai)地在英(ying)格蘭曼(man)徹斯特市的(de)(de)(de)一(yi)個(ge)電力(li)中心觸(chu)發(fa)了(le)一(yi)起事(shi)故，切斷了(le)UKFast公司運營的(de)(de)(de)數(shu)(shu)(shu)據中心園區中三(san)個(ge)數(shu)(shu)(shu)據中心的(de)(de)(de)其中兩個(ge)設(she)(she)(she)施的(de)(de)(de)電力(li)供應。而這兩個(ge)數(shu)(shu)(shu)據中心的(de)(de)(de)備用電源(yuan)系統沒有按照設(she)(she)(she)計要求(qiu)建設(she)(she)(she)，因(yin)此導(dao)致數(shu)(shu)(shu)據中心斷電停機。

UKFast公司的曼徹斯(si)特數據(ju)中心園區

雖然(ran)花費了(le)大約一(yi)個小時(shi)的(de)(de)時(shi)間就將(jiang)其(qi)發電(dian)機的(de)(de)備用電(dian)源提供給數(shu)據中(zhong)心，但直到次日上(shang)午，UKFast公司的(de)(de)工程師們才(cai)恢復其(qi)所有的(de)(de)客戶服務。一(yi)些(xie)物理設備由(you)于停電(dian)而損壞，不得不被替換，并(bing)且使得基礎設施系統正常運行也存在一(yi)些(xie)軟(ruan)件的(de)(de)問題(ti)。

UKFast公司(si)提(ti)供了在曼徹(che)斯特數據(ju)中(zhong)心園區托管的各種數據(ju)中(zhong)心服務，其中(zhong)包括主機、、專用服務器，以及托管服務。園區內共有(you)三座兩(liang)層(ceng)樓的數據(ju)中(zhong)心建(jian)(jian)筑：MaNOC 4，MaNOC 5和MaNOC 6和7（建(jian)(jian)有(you)兩(liang)個(ge)數據(ju)中(zhong)心的單一建(jian)(jian)筑）。每棟(dong)建(jian)(jian)筑都有(you)兩(liang)層(ceng)的數據(ju)大廳。MaNOC 5和MaNOC 6和7這兩(liang)個(ge)建(jian)(jian)筑都遭遇電(dian)力中(zhong)斷(duan)。

而這(zhe)兩個數(shu)據中(zhong)心的(de)UPS供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統在(zai)失(shi)去市電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時正常工(gong)(gong)作(zuo)，而備(bei)(bei)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源柴油(you)發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機雖然啟動(dong)但未(wei)能實(shi)現(xian)相位同(tong)(tong)(tong)步，UKFast公司(si)表示這(zhe)種情況(kuang)歸(gui)因(yin)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)損(sun)壞(huai)：UPS供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統為(wei)其工(gong)(gong)作(zuo)負(fu)載提(ti)(ti)供(gong)了電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力，并啟動(dong)了柴油(you)發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機，然而，由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)物(wu)理損(sun)壞(huai)，對現(xian)場提(ti)(ti)供(gong)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力不(bu)穩定并且是間歇(xie)性的(de)。結果，柴油(you)發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機組(zu)無法實(shi)現(xian)同(tong)(tong)(tong)步并提(ti)(ti)供(gong)備(bei)(bei)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源。數(shu)據中(zhong)心工(gong)(gong)程(cheng)師只好對柴油(you)發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機實(shi)施了手(shou)動(dong)同(tong)(tong)(tong)步工(gong)(gong)作(zuo)。

由于電(dian)(dian)(dian)網通(tong)常并不可(ke)靠，因此許(xu)多數據(ju)(ju)中心運營商會在(zai)其數據(ju)(ju)中心上(shang)建立冗(rong)余的(de)電(dian)(dian)(dian)力供(gong)應(ying)，這些(xie)(xie)供(gong)應(ying)通(tong)常連(lian)接(jie)到多個電(dian)(dian)(dian)網。但是這種冗(rong)余基礎設(she)施的(de)投資成本(ben)高昂，一些(xie)(xie)數據(ju)(ju)中心運營商（特別是小型運營商）有時會省卻這些(xie)(xie)開支，把他(ta)(ta)們的(de)設(she)備的(de)正(zheng)常運行時間寄希望于他(ta)(ta)們備用電(dian)(dian)(dian)源系統的(de)穩健性上(shang)。

法(fa)國云(yun)計算服(fu)務提(ti)供商OVH公司(si)在(zai)斯(si)特拉斯(si)堡的(de)三個數(shu)據(ju)中(zhong)(zhong)心在(zai)11月(yue)電力(li)中(zhong)(zhong)斷后停(ting)機。該公司(si)表示，其停(ting)電的(de)主要原因之一(yi)是(shi)數(shu)據(ju)中(zhong)(zhong)心缺乏(fa)雙電源回路。 OVH公司(si)表示，雖然(ran)使(shi)用(yong)電源雙饋電架構是(shi)企業的(de)標準(zhun)，但是(shi)這(zhe)個數(shu)據(ju)中(zhong)(zhong)心實(shi)施的(de)是(shi)一(yi)個較(jiao)舊的(de)標準(zhun)，沒(mei)有(you)提(ti)供雙路電源。

文章編輯：CobiNet(寧波)  
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