单项选择题
A. management of the library files
B. management of the encryption keys and archives
C. helps to reduce tape, file management and archive costs
D. helps to control the write speed matching on LTO-4 drives
单项选择题 On both the IBM SAN764B and the IBM SAN384B Fiber Channel Directors, all of the followingSmall Form Pluggable plus (SFP+) optical transceivers are supported EXCEPT:（）
单项选择题 A customer is currently using EMC disk. They are having an issue with the time it takes to complete a backup. What IBM tool can be used to show how much improvement can occur in the time it takes to backup the disk?（）
单项选择题 The IBM XIV Storage System supports all of the following fiber channel speeds EXCEPT:（）.