A previously functional, scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact. What is the most likely cause of the failure and how should it be resolved?（）A、The associated JFS2 log device h

第1题：

Companycom wants to apply a PTF to the p5 590 system. After doing a preview install, the output shows there is insufficient space in the /usr filesystem. The root volume group has no available physical partitions left. They do not want to add additional disk drives to the system, but have a jfs2 filesystem that is only 8% used. What could they do to utilize space in the jfs2 filesystem to apply this PTF?（）

• A、Backup the filesystem and recreate smaller
• B、Use the chfs to reduce the filesystem size
• C、Use cplv to copy filesystem to smaller size
• D、Use migratepv to copy filesystem to smaller size

第2题：

An application writes to a log file in the /logs filesystem that is full. After the log file is deleted，‘df’ still shows the filesystem as 100% full.  What is the likely cause of the problem and what will resolve it？（）

• A、The deleted file is still open by the application. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
• B、The deleted file is still open by the application. The application must be stopped before ‘df’ will show the reduction in the filesystem.
• C、The filesystem is still marked as full in the /etc/fs.status file. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
• D、The filesystem is still marked as full in the /etc/fs.status file. The application must be stopped before ‘df’ will show the reduction in the filesystem.

第3题：

The rootvg disk on a system failed and was replaced. The system was restored using the latest mksysb. However， no files in the /home filesystem were restored. What is the likely cause of this problem？（）

• A、The new drive is too small to hold the entire rootvg
• B、The /home filesystem was not mounted during creation of the mksysb
• C、The /home stanza in the bosinst.data contained an entry ’restore=no’
• D、The /home filesystem was NFS exported to another system during creation of the mksysb

第4题：

An Enhanced Journeyed File System that is in a shred non-concurrent Volume Group is growing  at an unexpected rate. It is the administrator’s task to enlarge the filesystem without interrupting service.  What method should be sued to achieve this goal？（）  

• A、 Use HACMP C-SPOC to increase the size of the JFS2 filesystem.
• B、 Use the smitty jfs2 fastpath to increase the size of the JFS2 filesystem.
• C、 Use HACMP C-SPOC to increase the size of the JFS2 filesystem and inline JFS2 logs.
• D、 Use mklvcopy hdisk# 2 jfs2lvname to increase the size of the JFS2 filesystem，then use splitlvcopy jfs2lvname 1 -y newjfs2lvname hdisk# to present the increased JFS2 filesystem to HACMP.

第5题：

Using splitvg to create a snapshot volume group of rootvg results in an error.  What is the most likely cause of the error（）

• A、There is not an available disk to allocate to the snapshot volume group
• B、One of the physical volumes associated with rootvg has a status of "missing"
• C、Rootvg is running in enhanced concurrent mode
• D、A snapshot volume group cannot be created for the rootvg

第6题：

Under  which  of  the  following  circumstances  must  a  JFS  filesystem  be  used  instead  of  a  JFS2   filesystem（）

• A、filesystem will contain 100GB files
• B、filesystem resides on a 32-bit system
• C、filesystem contains a large number of small files
• D、filesystem compression is required

第7题：

When is it appropriate to use a JFS filesystem instead of a JFS2 filesystem？（）

• A、When the filesystem will contain 100GB files.
• B、When the filesystem resides on a 32-bit system.
• C、When the filesystem contains a large number of small files.
• D、When filesystem compression is required due to limited disk space.

第8题：

An administrator needs to apply a Technology Level update. During the preview install， the output indicates that there is insufficient space in the /usr filesystem. Review of the root volume group indicates there are no available physical partitions， but the /test jfs2 filesystem is only 8% used.  What is the most efficient method to use the available space in the /test filesystem to apply the update？（）

• A、Use chfs to reduce the /test filesystem
• B、Use cplv to copy the /test filesystem to a smaller logical volume
• C、Use migratepv l to move the /test filesystem to a different volume group
• D、Backup the /test filesystem， remove it， and recreate it with a smaller size

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第13题：

A previously functional， scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact.  What is the most likely cause of the failure and how should it be resolved？（）  

• A、The associated JFS2 log device has failed. Check the log device and varyon the device.
• B、The logical volume that hosts the snapshots is full. Increase the size of the logical volume.
• C、Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existingsnapshot.
• D、The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

第14题：

The ‘fsck -p /dev/lv00’ command returned the following message：Not a recognized filesystem type. What is the likely cause of the problem and how should it be resolved？（）

• A、The file system superblock is dirty. It can be replaced from the VGDA
• B、The logical volume superblock is dirty. It can be replaced from the VGDA
• C、The file system superblock is dirty. It can be replaced from the secondary copy
• D、The logical volume superblock is dirty. It can be replaced from the secondary copy

第15题：

A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（）

• A、Inline logging
• B、Dynamic inode allocation
• C、Linear directory organization
• D、Online filesystem defragmentation

第16题：

How can a JFS2 filesystem be added to a volume group that has insufficient space to host a log LV？（） 

• A、Create the filesystem with an inline log.
• B、Create the filesystem referring to the jfs2log in rootvg.
• C、Create the filesystem and format the logical volume with ’logform’.
• D、Create the filesystem’s underlying logical volume with an inline log.

第17题：

A system administrator can create logical volumes and then add file systems to them， or create the file system directly. What is an advantage of the two-step approach instead of the one-step approach？（）

• A、The number of bytes per inode can be specified.
• B、Placement of the filesystem on the disk can be specified.
• C、The jfslog can be specified on creation of the filesystem.
• D、Either a JFS or JFS2 filesystem can be created on the logical volume.

第18题：

When running the jfs2 filesystem on a user volume group which of the following options is TRUE?（）

• A、Only the 64bit kernel is supported. 
• B、Filesystem compression is not supported. 
• C、Filesystem compression is supported only if the 64bit kernel is running. 
• D、Filesystem compression is supported running either a 32bit or 64bit kernel.

第19题：

A system administrator has determined that the /development filesystem needs to be changed from JFS to JFS2 to take advantage of the new capabilites available in JFS2. What is the method to convert the /development filesystem from type JFS to JFS2？（）

• A、Umount the /development filesystem and remount it using the following command： mount -t jfs2 /development
• B、Edit the /etc/filesystems file to change the type paramter to "jfs2" and change the log parameter to "jfs2log"
• C、Backup the /development filesystem data， delete the JFS /development filesystem， create the new JFS2 /development filsystem， and restore the data to the /development filesystem
• D、Backup the /development filesystem data， change the /development filesystem using the following command，chfs -t type=jfs2 /development.then， restore the data to the /development filesystem

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