The customer has recently installed a pSeries p5-570 with EMC attached disk storage. After installation， the customer complained that the disk access appeared to be too slow. How should the pSeries technical specialist best assist the customer？（） Recommend the customer call EMC.。 Recommend the customer call IBM hardware support.。 Recommend the customer contact SupportLine.。 Recommend the customer re-creates the volume groups.。
请任意写出变流系统中的5种故障名称。
A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（） The bosboot command failed to complete.。 The JFS log device is corrupted.。 The initttab file is corrupted.。 The /dev entries or /etc files are missing.。
Which of the following statements is TRUE about the primary system dump device?（） It is shared. 。 It must be /dev/hd6. 。 It must be an internal disk. 。 It can be an external device.。
104型制动机的常用制动波速最大约为（）。 140m／s。 170m／s。 180m／s。 190m／。
A System p administrator needs to upgrade a system from AIX 5.2 to AIX 5.3.
Which of the following installation methods would minimize downtime（）
