单项选择题 A customer has bought an IBM System Storage DS8700 and wants to attach ten SuSE Linux Enterprise Server hosts to the DS8700 with multiple paths.  What is the Multipathing Driver the customer needs（）

单项选择题 WhatisthecorrectordertocreateanobjectinanewIBMSystemStorageDS8000togetaLUNprovidedtoahost（）

单项选择题 A new Disaster Recovery site has been established using Metro Mirror to hold synchronous data at both sites. After the Metro Mirror is started， one of the most important applications， a DB2 database， slows down. An analysis shows that the I/O rate （especially write I/Os） is less than 40% compared to the former rates.  What is the best explanation for this behavior（）