单项选择题 Companycom has the following: 8 x 1.65GHz CPUs 16GB Memory 4 LPARs LPAR 1: Test/Dev 1 CPU, 2GB Memory, 1 Fibre Channel HBA, AIX 5.3 LPAR 2: QA 1 CPU, 2GB Memory, 1 Fibre Channel HBA, AIX 5.3 LPAR 3: Prod 3 CPUs, 6GB Memory, 1 Fibre Channel HBA, AIX 5.3 LPAR 4: Web App 3 CPUs, 6GB Memory, 1 Fibre Channel HBA, SUSE Linux Utilization over a 30 day period LPAR 1: Average utilization was 15%, Peak utilization was 100% LPAR 2: Average utilization was 25%, Peak utilization was 100% LPAR 3: Average utilization was 50%, Peak utilization was 90% LPAR 4: Average utilization was 35%, Peak utilization was 100% If the customer has a requirement for all four LPARs to be moved to a p5 590 and assigned to a shared pool. Which of the following would best describe the profile requirements?（）

单项选择题 Companycom is considering a partitioned solution with one of the LPARs utilizing 12 CPUs. Multiple applications will be loaded on this large LPAR. However, the customer wants to ensure some tasks will have higher priority access to the CPU and memory resources. Which of the following solutions would best satisfy the requirement?（）

单项选择题 Companycom has been performing scheduled backups of their data to tape using "tar" in a script for over one year with no problems. Recently, the tar command is returning a non zero return code during the backup phase, causing the script to fail. What is the primary cause of this problem?（）