单选题Which presents the heirarchical relationship between LVM entities？（）A Volume Group > Physical Volume > Logical Volume > FilesystemB Physical Volume > Volume Group > Logical Volume > FilesystemC Volume Group > Physical Volume > Filesystem > Logical Volu

第1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2题：

Which command synchronizes or rebuilds the logical volume control block， the device configuration database， and the volume group descriptor areas on the physical volumes？（）

• A、syncvg rootvg
• B、synclvm rootvg
• C、varyonvg rootvg
• D、synclvodm rootvg

第3题：

第4题：

Which of the following attributes should be specified when creating a volume group?（）

• A、stripe size
• B、allocation policy
• C、physical partition size
• D、number of logical partitions

第5题：

Which presents the heirarchical relationship between LVM entities？（）  

• A、Volume Group > Physical Volume > Logical Volume > Filesystem
• B、Physical Volume > Volume Group > Logical Volume > Filesystem
• C、Volume Group > Physical Volume > Filesystem > Logical Volume
• D、Physical Volume > Volume Group > Filesystem > Logical Volume

第6题：

With a scalable volume group, where is the logical volume control information stored on the disk?（）

• A、In the ODM
• B、In the volume group descriptor area
• C、In the first 512 bytes of the logical device
• D、In the first block of the user data within the LV

第7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.

第8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9题：

A system administrator’s daily monitoring has revealed a failing disk drive. The drive that is failing， hdisk0， is a lvm mirrored drive. What is the first step that should be taken in order to physically replace this drive？（）

• A、Remove the physical volume from the system.
• B、Remove the physical volume from the volume group.
• C、Remove the physical partitions from the volume group.
• D、Remove the logical volume copies from the failing drive.

第10题：

What is the objective of the superstrict option that can be used when creating mirrors?（）

• A、Allows the mirror partitions to spread across a maximum number of disks.
• B、Allows the copy of a partition to be on the same physical volume as the mirrored partition.
• C、Prevents partitions allocated to one logical volume mirror from sharing a physical volume with partitions from another logical volume mirror.
• D、Forces copies of logical partitions to be housed on different physical volumes, while allowing a single physical volume to be shared by logical volume mirrors.