During implementation of a two-node cluster,it is determined that error notification for the shared Disk subsystem would be beneficial. Which of the following is a pre-requisite for implementing automatic error notification?()
A. The cluster must not be running.
B. The cluster.es.server.utils lpp must be installed.
C. The error notification module must be enabled in RSC
D. The permissions on /tmp/hacmp.out need to be changed to 774.
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迫于舆论而捐款,这种行为是利他行为。
A. 正确
B. 错误
当气水分离器()达到液面标尺规定的高度时,启动水环真空泵的电动机。
A. 油位
B. 水位
C. 气位
D. 真空度
《大气污染防治行动计划》要求京津冀地区到2017年全国地级及以上城市可吸入颗粒物浓度比2012年下降20%。
A. 正确
B. 错误