单选题Error log analysis indicates that a disk is starting to fail and will need to be replaced. The failing disk contains multiple logical volumes which span multiple disks. A free disk has been added to the failing disk’s volume group.Which of the followin

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：

A system administrator has a failed disk drive that is mirrored to another disk drive. They successfully removed the logical volume copies off of the failed disk drive. Which of the following commands should be used to remove the failed disk drive from the volume group？（）

• A、chvg
• B、rmdev
• C、reducevg
• D、exportvg

第3题：

第4题：

A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated，and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover？（）  

• A、 Disk should be mirrored across separate storage enclosures.
• B、 Disk heartbeats should be added over multiple disk adapters.
• C、 Disk major and minor numbers should be set as unique across nodes.
• D、 Disk adapter queue_depth should be increased from the default values.

第5题：

What must an administrator do to create two new volume groups on a system with only one spare disk?（）

• A、Run the 'mkvg -M' command to create multiple volume groups on a single disk
• B、Add a new disk to the system or release a disk from the one of the existing volume groups
• C、Run the 'mkvg' command to create multiple volume groups on a single disk providing the disk does not have a PVID
• D、Run the 'mkvg' command to create multiple volume groups on a single disk providing the volume groups have the same PP size

第6题：

Which of the following procedures should occur before removing a failing disk from a volume group?（）

• A、Veryoff the volume group
• B、Unmount any filesystems on the disk
• C、Remove all physical partitions on the disk
• D、Unmount mirrored filesystems from the disk

第7题：

When attempting to boot a PC, the POST process completes without error. The PC then displays,‘non system disk or disk error’. Which of the following would MOST likely cause the issue?（）

• A、Out-of-date BIOS
• B、Invalid motherboard jumper settings
• C、Failing power supply
• D、Floppy disk in the drive

第8题：

第9题：

A system administrator has determined a root mirrored disk， hdisk1， needs to be replaced. The root volume has been unmirrored. What is the next step to remove the disk drive？（）

• A、cfgmgr
• B、rmdev -d hdisk1 -l
• C、reducevg rootvg hdisk1
• D、have the IBM CE replace the disk

第10题：

A disk contains several logical volumes.  Which of the following commands indicates how much data is read from or written to a particular logical volume on the same disk?（）

• A、 sar 
• B、 iostat 
• C、 svmon 
• D、 filemon