At the start of a database mirroring session , the database is in the synchronizing state 在數(shù)據(jù)庫鏡像會(huì)話開始時(shí),數(shù)據(jù)庫處于synchronizing狀態(tài)。
If transaction safety is off , some data loss is always possible , even in the synchronized state 如果關(guān)閉事務(wù)安全性,則即使處于synchronized狀態(tài),也總可能丟失某些數(shù)據(jù)。
Manual failover requires transaction safety to be set to full and the database to be in the synchronized state 手動(dòng)故障轉(zhuǎn)移要求將事務(wù)安全設(shè)置為full ,并且數(shù)據(jù)庫處于synchronized狀態(tài)。
If transaction safety is on , automatic failover and manual failover are both supported in the synchronized state , there is no data loss after a failover 如果啟用事務(wù)安全性,則synchronized狀態(tài)同時(shí)支持自動(dòng)故障轉(zhuǎn)移和手動(dòng)故障轉(zhuǎn)移,并且在故障轉(zhuǎn)移后不會(huì)丟失數(shù)據(jù)。
Forces database service to the mirror database after the principal server fails with the database in an unsynchronized state or in a synchronized state when automatic failover does not occur 在主體服務(wù)器因數(shù)據(jù)庫處于不同步狀態(tài)而失敗后,強(qiáng)制鏡像數(shù)據(jù)庫提供服務(wù)。
From vibrating torque equations of shaker ' s exciting shafts , the self - synchronizing condition and synchronizing state stability condition of balanced elliptical shakers excited by two - shaft self - synchronizing are obtained 從振動(dòng)篩偏心軸的振動(dòng)力矩方程出發(fā),導(dǎo)出了雙軸自同步平動(dòng)橢圓振動(dòng)篩的自同步條件和穩(wěn)定運(yùn)轉(zhuǎn)條件。