You are now able to perform scheduled maintenance activities on the Blade and SAP will not suffer any down time as a result of this activity.

现在能够在Blade上按计划执行维护活动，而不需要停止SAP。

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Online maintenance window that is 24x7 (that is all hours of all days of the week; online maintenance tasks can be scheduled any time).

在线维护窗口是24x7全天候的(即每周7天，每天24小时；可以在任何时间调度在线维护任务)。

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Twitter decided yesterday to delay a scheduled downtime for maintenance until the middle of the night, Iran time.

Twitter昨天决定将原先的维护时间推迟到伊朗时间的深夜。

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For example, senior officials say the State Department asked Twitter to refrain for going down for periodic scheduled maintenance at this crucial time to ensure that the site continues to operate.

CNN: Officials: Social networking providing crucial info from Iran

What is the up time track record of the company, as verified by a third party and including scheduled maintenance?

FORBES: Is Your Data Safe In The Cloud?

But recently, officials had been considering whether to delay this scheduled closure - for maintenance work - until the end of 2012, giving the LHC more time to hunt for the elusive particle.

BBC: No extra time for US particle lab