单选题A system administrator has backed up the datavg volume group using the savevg command. There are several raw logical volumes and some unmounted jfs filesystems in datavg. Which of the following statements is true about this backup?（）A The volume group

第1题：

The system administrator notices that there is an I/O bottleneck on one of three disks in datavg volume group. This problem disk contains the JFS log， loglv00 and one filesystem， /mydatabase.  There are no other logical volumes on this disk.  Which of the following options would be the best solution？（）

• A、 Increase the size of the JFS log logical volume so more transacations can be written to this log.
• B、 Create a second， additional JFS log and have the /mydatabase logical volume point to both JFS logs.
• C、 Migrate the JFS log device to another physical disk in the same volume group.
• D、 Only one JFS log device for each volume group can be used.  Use the migratepv command to move the JFS log device to an empty disk in another volume group.

第2题：

An AIX system has a rootvg plus a separate volume group for database application. Which of the following commands are sued to backup the entire system?（）

• A、smitty mksysb (select additional volume group)
• B、mkszfile && mksysb /dev/rmt0
• C、smitty mksysb AND smitty savevg
• D、smitty savevg (select additional volume group)

第3题：

第4题：

When defining resources for a concurrent resource group， which of the following is NOT  supported？（）   

• A、 Application Servers using disk
• B、 Definition of Multiple IP aliases
• C、 Volume Groups using raw logical volumes
• D、 Volume Groups supporting concurrent access

第5题：

An  administrator  has  a  server  experiencing  performance  problems  with  logical  volumes  within  a particular volume group.  Which command can report I/O statistics for logical partitions with each logicalvolume within the volume group（）

• A、Islv
• B、vmstat
• C、iostat
• D、Ivmstat

第6题：

A system administrator has a server experiencing performance problems with logical volumes within a particular volume group. Which command can report I/O statistics for logical partitions with each logical volume within the volume group？（）

• A、lslv
• B、lsvg
• C、iostat
• D、lvmstat

第7题：

The 'lsvg -o' command is run with an output of only rootvg, but the server has another volume group named datavg, which is notdisplayed. What is the likely cause?（）

• A、datavg is in an offline state.
• B、'lsvg -o' only displays the root volume group.
• C、'lsvg -o' only displays the fist volume group.
• D、datavg has no filesystems and therefore, is inactive.

第8题：

第9题：

A system administrator has a filesystem called /test/data in volume group datavg. Which of the following commands will allow the administrator to create a mirrored copy of the filesystem’s data？（）

• A、chfs
• B、chlv
• C、mklvcopy
• D、mkfscopy

第10题：

An administrator is trying to extend an existing volume group with a new hard disk, but the extendvg command returns the following error. 0516-1162 /usr/sbin/extendvg. Warning, The Physical Partition Size of 64 requires the creation of 8924 partitions for hdisk11. The limitation for volume group datavg is 1016 physical partitions per physical volume. Use chvg command with -t option to attempt to change the maximum Physical Partitions per Physical volume for this volume group. The chvg -t may or may not allow the extendvg command to succeed. What is the implication of using this option?（）

• A、It reduces the maximum file size allowed within the given volume group.
• B、It reduces the maximum number of files allowed within the given volume group.
• C、It reduces the maximum number of logical volumes allowed within the given volume group.
• D、It reduces the maximum number of physical volumes allowed within the given volume group.