单选题A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：       （1）The average record written to disk is 16KB       （2）The I/O block size is 2KB   （3）Th

题目
单选题
A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：       （1）The average record written to disk is 16KB       （2）The I/O block size is 2KB   （3）The stripe size on the RAID array is 16KB  Which of the following will improve performance without rebuilding the operating system？（）
A

Change the I/O block size to match the RAID Stripe size.

B

Change the RAID stripe size to match the I/O block size.

C

Change the record size of the database to match the RAID stripe size.

D

Change the record size of the database to match the I/O transfer rate.

相似考题

1.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.

2. A technical specialist has a requirement to implement a 4-way POWER5 server with a small Web server partition and a high performance database server partition. The Web server provides a client front-end to the database server. The most important concerns are speed of communication between the Web server and the database and I/O speed of the database. Which of the following virtualization features would be most appropriate？（）A、Virtual SCSIB、Virtual EthernetC、Virtual I/O ServerD、Micro-Partitioning

3. A technical specialist has installed a Host Bus Adapter （HBA） on a p5-550 server. The system has four AIX 5L V5.3 partitions and a Virtual I/O server. The HBA will be used to connect all four partitions to a DS8000 storage array. What else must be performed to make the storage available to the partitions？（）A、Allocate the HBA to a client partition.B、Restart the Virtual I/O Server to detect the changes.C、Install the device driver for the DS8000 in each of the four AIX partitions.D、Allocate the HBA to the VIO server partition and install necessary drivers.

4.Given the following output what course of action should be undertaken for a long term solution（）A、Implement regular monitoring to avoid full filesystemsB、Double the size of /usrC、Reduce the size of /home to balance the filesystemsD、Add another disk allow for growth.

更多“单选题A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：       （1）The average record written to disk is 16KB       （2）The I/O block size is 2KB   （3）Th”相关问题

  • 第1题：

    A technician is working on a new computer running Windows XP and the hard drive is formatted at 20GB but is an 80GB hard drive. There is not another partition and no extra space can be foundunder Windows explorer.  Which of the following would be the BEST way to partition the remainder of the hard drive without data loss？ （）

    • A、Add another hard drive and use that available space.
    • B、Run FDISK.
    • C、Use the Disk Management tool.
    • D、Back up all important data to an external drive then reformat the hard drive.

    正确答案:C

  • 第2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

    正确答案:B

  • 第3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

    正确答案:D

  • 第4题：

    When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）

    • A、 Disk size， stock availability， VHDCI
    • B、 Disk size， distance， temperature， and compatibility
    • C、 Disk fragmentation， MTBF， and maintenance
    • D、 Disk configuration， throughput， transactions， queues， and latencies

    正确答案:D

  • 第5题：

    You plan to deploy a distributed database application that runs on multiple Windows Server 2008 R2  servers.   You need to design a storage strategy that meets the following requirements： èAllocates storage to servers as required  èUses the existing network infrastructure èUses standard Windows management tools   èEnsures that data is available if a single disk fails What should you include in your design？（）

    • A、An iSCSI disk storage subsystem that supports Microsoft Multipath I/O. Configure the storage  subsystem as a RAID？0 array.
    • B、An iSCSI disk storage subsystem that supports Virtual Disk Service （VDS）. Configure the storageubsystem as a RAID？5 array.
    • C、A Fibre Channel （FC） disk storage subsystem that supports Microsoft Multipath I/O. Configure the  storage subsystem as a RAID？0 array.
    • D、A Fibre Channel（FC）disk storage subsystem that supports the Virtual Disk Service（VDS）.Configure  the storage subsystem as a RAID？5 array.

    正确答案:C

  • 第6题：

    单选题
    Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）
    A

     filemon

    B

     istat

    C

     vmstat

    D

     iostat


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    An xSeries specialist monitors a customer’s server that has poor performance.  The customer is running an x365 with a ServeRAID 6i controller with write-back cache turned on and ten 15K rpm drives in a RAID-5 array.  It is a mission-critical server and must have a redundant storage system.  Performance tests indicate that the Average Disk sec/Transfer exceeds 20 ms.  Which of the following is the lowest-cost method to increase the throughput？（）
    A

    Disable the ServRAID cache

    B

    Change the RAID level to 10

    C

    Change the cache level to Write Through

    D

    Add five more drives to the array to increase the number of read/write heads


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Given the following output what course of action should be undertaken for a long term solution（）
    A

    Implement regular monitoring to avoid full filesystems

    B

    Double the size of /usr

    C

    Reduce the size of /home to balance the filesystems

    D

    Add another disk allow for growth.


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    A technician is working on a new computer running Windows XP and the hard drive is formatted at 20GB but is an 80GB hard drive. There is not another partition and no extra space can be foundunder Windows explorer.  Which of the following would be the BEST way to partition the remainder of the hard drive without data loss？ （）
    A

    Add another hard drive and use that available space.

    B

    Run FDISK.

    C

    Use the Disk Management tool.

    D

    Back up all important data to an external drive then reformat the hard drive.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    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


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    You plan to deploy a distributed database application that runs on multiple Windows Server 2008 R2  servers.   You need to design a storage strategy that meets the following requirements： èAllocates storage to servers as required  èUses the existing network infrastructure èUses standard Windows management tools   èEnsures that data is available if a single disk fails What should you include in your design？（）
    A

    An iSCSI disk storage subsystem that supports Microsoft Multipath I/O. Configure the storage  subsystem as a RAID？0 array.

    B

    An iSCSI disk storage subsystem that supports Virtual Disk Service （VDS）. Configure the storageubsystem as a RAID？5 array.

    C

    A Fibre Channel （FC） disk storage subsystem that supports Microsoft Multipath I/O. Configure the  storage subsystem as a RAID？0 array.

    D

    A Fibre Channel（FC）disk storage subsystem that supports the Virtual Disk Service（VDS）.Configure  the storage subsystem as a RAID？5 array.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    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.


    正确答案： B
    解析： 暂无解析

  • 第13题：

    You have run out of disk space on a partition. Which of the following would be an easy way to move data to a new partition without reconfiguring the path to the data in existing applications？（）

    • A、 Run ext2fs ACL.
    • B、 Use a hard link.
    • C、 Use a symbolic link.
    • D、 Use the loopback device.
    • E、 Create a block device offset.

    正确答案:C

  • 第14题：

    A company installed a new server to manage its electronic image storage.  They have two distinct image sizes： 2KB and 16KB.  Two distinct arrays are created on a ServeRAID adapter.  The first array will store all of the 2KB images， and the second array will store all the 16KB images.  The RAID stripe size was left at the default size of 8KB.  After installation， a performance problem is identified. According to performance monitoring， 80% of the images are 16KB.  Which of the following will best optimize performance？（）

    • A、Change the stripe size on the RAID controller
    • B、Change the stripe size to 1024K on the RAID controller
    • C、Change the stripe size on the RAID controller for the first array
    • D、Change the stripe size on the RAID controller for the second array

    正确答案:A

  • 第15题：

    A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：       （1）The average record written to disk is 16KB       （2）The I/O block size is 2KB   （3）The stripe size on the RAID array is 16KB  Which of the following will improve performance without rebuilding the operating system？（）

    • A、Change the I/O block size to match the RAID Stripe size.
    • B、Change the RAID stripe size to match the I/O block size.
    • C、Change the record size of the database to match the RAID stripe size.
    • D、Change the record size of the database to match the I/O transfer rate.

    正确答案:A

  • 第16题：

    Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）

    • A、 filemon
    • B、 istat
    • C、 vmstat
    • D、 iostat

    正确答案:D

  • 第17题：

    单选题
    A technical specialist has installed a Host Bus Adapter （HBA） on a p5-550 server. The system has four AIX 5L V5.3 partitions and a Virtual I/O server. The HBA will be used to connect all four partitions to a DS8000 storage array. What else must be performed to make the storage available to the partitions？（）
    A

    Allocate the HBA to a client partition.

    B

    Restart the Virtual I/O Server to detect the changes.

    C

    Install the device driver for the DS8000 in each of the four AIX partitions.

    D

    Allocate the HBA to the VIO server partition and install necessary drivers.


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    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


    正确答案： B
    解析： 暂无解析

  • 第19题：

    多选题
    Full Atomicity, Consistency, Isolation, Durability (ACID) compliance is a necessity for a new application, which heavily reads and writes data. This requires the following config file options: Sync_binlog=1 Innodb_flush_log_at_trx_commit=1 Innodb_doublewrite=1 However, this configuration is expected to introduce disk I/O overhead. What three changes will reduce disk I/O overheads?（）
    A

    Use of soft links for database directories on the same physical disk

    B

    Use of delay_key_write=ON for batch index update

    C

    Allocation of RAM to the buffer pool such that more of the data can fit in RAM

    D

    Placement of InnoDB log files and datadir on separate physical disks

    E

    Use of separate directories on the same physical disk for log files and data files


    正确答案： D,E
    解析： 暂无解析

  • 第20题：

    单选题
    A company installed a new server to manage its electronic image storage.  They have two distinct image sizes： 2KB and 16KB.  Two distinct arrays are created on a ServeRAID adapter.  The first array will store all of the 2KB images， and the second array will store all the 16KB images.  The RAID stripe size was left at the default size of 8KB.  After installation， a performance problem is identified. According to performance monitoring， 80% of the images are 16KB.  Which of the following will best optimize performance？（）
    A

    Change the stripe size on the RAID controller

    B

    Change the stripe size to 1024K on the RAID controller

    C

    Change the stripe size on the RAID controller for the first array

    D

    Change the stripe size on the RAID controller for the second array


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    A technical specialist has a requirement to implement a 4-way POWER5 server with a small Web server partition and a high performance database server partition. The Web server provides a client front-end to the database server. The most important concerns are speed of communication between the Web server and the database and I/O speed of the database. Which of the following virtualization features would be most appropriate？（）
    A

    Virtual SCSI

    B

    Virtual Ethernet

    C

    Virtual I/O Server

    D

    Micro-Partitioning


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    You plan to deploy a distributed database application that runs on Windows Server 2008 R2. You need to design a storage strategy that meets the following requirements： èAllocates storage to servers as required   èIsolates storage traffic from the existing network   èEnsures that data is available if a single disk fails   èEnsures that data is available if a single storage controller fails What should you include in your design？（）
    A

    An iSCSI disk storage subsystem that uses Microsoft Multipath I/O. Configure a RAID？0 array.

    B

    An iSCSI disk storage subsystem that uses Virtual Disk Service （VDS）. Configure a RAID？5 array.

    C

    A Fibre Channel （FC） disk storage subsystem that uses Microsoft Multipath I/O. Configure a RAID？5  array.

    D

    A Fibre Channel（FC）disk storage subsystem that uses Virtual Disk Service（VDS）.Configure a RAID？0 array.


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）
    A

     Disk size， stock availability， VHDCI

    B

     Disk size， distance， temperature， and compatibility

    C

     Disk fragmentation， MTBF， and maintenance

    D

     Disk configuration， throughput， transactions， queues， and latencies


    正确答案： D
    解析： 暂无解析

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