单项选择题 Sometimes performance is more important than availability （e.g.， in cases where the data can be easily re-created）.  Which of the following is the appropriate disk configuration for an application that requires faster writes over availability（）

单项选择题 A System p administrator noticed several error messages on the screen while the system was booting up； but was not able to write them down.  Where should the system administrator look for the console log， assuming it is in the default location（）

单项选择题 An administrator needs to be able to restore a mksysb created on SERVER_A using a 4MM tape drive， to SERVER_B that only has an 8MM tape drive. There is an additional server that has a  4MM drive at /dev/rmt0 and an 8MM drive at /dev/rmt1.  Which of the following procedures should be followed to convert from the 4MM to 8MM format（）