锟接★拷支锟斤拷锟斤拷锟斤拷锟较★拷说锟斤拷锟斤拷锟角的伙拷锟斤拷锟斤拷为锟斤拷锟斤拷舜锟斤拷锟�?

锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷维锟斤拷谈锟斤拷|锟斤拷时锟戒：2015-06-18 11:52:21 |锟斤拷锟侥讹拷锟斤拷174锟斤拷|锟斤拷锟斤拷签锟斤拷携锟斤拷支锟斤拷锟斤拷锟斤拷 |锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

5锟斤拷知锟斤拷锟斤拷锟较ｏ拷直锟斤拷说锟角伙拷锟斤拷锟斤拷锟较ｏ拷太锟斤拷锟剿ｏ拷锟斤拷锟揭撅拷锟斤拷锟斤拷锟侥匡拷锟斤拷应锟斤拷锟斤拷Tengine锟斤拷朔锟斤拷锟绞憋拷锟斤拷碌模锟斤拷锟斤拷羌虻サ锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�

锟斤拷每一锟轿癸拷锟较凤拷锟斤拷锟斤拷时锟斤拷锟斤拷实锟斤拷锟斤拷锟剿猴拷锟斤拷锟斤拷锟角碉拷锟矫伙拷锟斤拷锟节诧拷锟侥憋拷锟斤拷锟斤拷锟角匡拷锟斤拷锟皆伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷潜锟斤拷锟揭拷愎伙拷锟斤拷锟斤拷樱锟斤拷锟斤拷锟揭拷锟斤拷前锟斤拷锟斤拷锟缴憋拷锟斤拷木锟斤拷椤ｏ拷堑锟斤拷锟绞裁达拷强锟斤拷锟斤拷院涂煽锟斤拷锟�?影锟斤拷锟斤拷锟斤拷缘锟斤拷锟斤拷锟斤拷锟斤拷锟叫�?锟斤拷维锟斤拷锟斤拷锟竭匡拷锟斤拷锟斤拷?锟饺等★拷

一锟斤拷什么锟角匡拷锟斤拷锟皆和可匡拷锟斤拷

锟缴匡拷锟斤拷锟斤拷锟节革拷锟斤拷锟斤拷时锟斤拷锟斤拷锟酵革拷锟斤拷锟斤拷锟斤拷锟铰ｏ拷系统锟斤拷锟斤拷确执锟斤拷锟戒功锟杰的革拷锟绞★拷锟斤拷锟斤拷锟斤拷锟斤拷指系统锟斤拷执锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷母锟斤拷省锟斤拷锟斤拷锟斤拷锟揭恍┲革拷甓拷澹�

1. MTBF锟斤拷锟斤拷全锟斤拷锟斤拷Mean Time Between Failure锟斤拷锟斤拷平锟斤拷锟睫癸拷锟较癸拷锟斤拷时锟戒。锟斤拷锟角达拷锟铰的诧拷品锟节规定锟侥癸拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟铰匡拷始锟斤拷锟斤拷锟斤拷锟斤拷锟街碉拷一锟斤拷锟斤拷锟较碉拷时锟斤拷锟狡斤拷锟街碉拷锟組TBF越锟斤拷锟斤拷示锟缴匡拷锟斤拷越锟斤拷锟斤拷确锟斤拷锟斤拷锟斤拷锟斤拷越强锟斤拷

2. MTTR锟斤拷锟斤拷全锟斤拷锟斤拷Mean Time To Repair锟斤拷锟斤拷平锟斤拷锟睫革拷时锟戒。锟斤拷指锟斤拷锟睫革拷锟斤拷品锟斤拷平锟斤拷锟睫革拷时锟戒，锟斤拷锟角从筹拷锟街癸拷锟较碉拷锟睫革拷锟叫硷拷锟斤拷锟斤拷时锟戒。MTTR越锟教憋拷示锟阶恢革拷锟斤拷越锟矫★拷

3. MTTF锟斤拷锟斤拷全锟斤拷锟斤拷Mean Time To Failure锟斤拷锟斤拷平锟斤拷失效时锟戒。系统平锟斤拷锟杰癸拷锟斤拷锟斤拷锟斤拷锟叫多长时锟戒，锟脚凤拷锟斤拷一锟轿癸拷锟较★拷系统锟侥可匡拷锟斤拷越锟竭ｏ拷平锟斤拷锟睫癸拷锟斤拷时锟斤拷越锟斤拷锟斤拷

锟斤拷锟斤拷锟斤拷Availability = MTBF / (MTBF + MTTR)锟斤拷一锟斤拷锟斤拷锟角讹拷锟斤拷锟斤拷N锟斤拷9锟斤拷锟斤拷锟斤拷系统锟斤拷锟斤拷锟皆ｏ拷锟斤拷宕伙拷时锟斤拷锟斤拷说锟斤拷锟斤拷锟斤拷锟解，锟斤拷锟斤拷锟饺拷锟轿拷锟斤拷锟�(24*365=8760锟斤拷小时)锟斤拷3锟斤拷9(99.9%)锟斤拷锟斤拷味锟斤拷全锟斤拷宕伙拷时锟斤拷锟斤拷525.6锟斤拷锟接ｏ拷4锟斤拷9(99.99%)锟斤拷52.6锟斤拷锟接ｏ拷5锟斤拷9(99.999%)锟斤拷5锟斤拷锟接★拷

锟斤拷锟斤拷些时锟斤拷指锟斤拷锟较匡拷锟皆凤拷锟斤拷去锟狡碉拷IT锟斤拷锟斤拷锟斤拷锟斤拷牡胤锟斤拷锟斤拷锟斤拷锟剿狄伙拷锟斤拷锟斤拷匣指锟绞憋拷锟杰筹拷锟斤拷一锟斤拷锟斤拷锟皆讹拷锟街革拷锟斤拷锟斤拷维锟斤拷识锟斤拷锟斤拷锟斤拷锟斤拷锟教★拷系统锟杰癸拷锟饺地凤拷锟斤拷锟皆ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟藉椿锟绞憋拷锟斤拷锟斤拷;平锟斤拷失效时锟斤拷蹋锟揭伙拷锟斤拷锟较低筹拷目煽锟斤拷猿锟斤拷锟斤拷锟斤拷猓拷壹锟斤拷锟斤拷锟狡碉拷锟斤拷锟解，锟斤拷锟斤拷锟斤拷锟斤拷硬锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷鹊锟�

锟斤拷锟斤拷影锟斤拷锟斤拷锟斤拷缘锟斤拷锟斤拷锟�

影锟斤拷锟斤拷锟斤拷缘锟斤拷锟斤拷胤浅锟斤拷亩啵拷锟斤拷强锟斤拷源蛹锟斤拷锟轿拷锟饺ワ拷锟斤拷锟斤拷锟斤拷锟斤拷锟街拷锟斤拷锟斤拷獭锟斤拷锟斤拷锟斤拷锟揭碉拷锟斤拷锟斤拷锟斤拷锟侥革拷维锟饺★拷

小锟斤拷锟狡硷拷锟侥讹拷