In an iostat report, which of the following options best describes the value of % tm_act?()A、 The total CPU usage for this driveB、 The bandwidth utilization of the indicated driveC、 It can best be represented by the equation (%iowait - %ioidle)D、 It can b

题目

In an iostat report, which of the following options best describes the value of % tm_act?()

  • A、 The total CPU usage for this drive
  • B、 The bandwidth utilization of the indicated drive
  • C、 It can best be represented by the equation (%iowait - %ioidle)
  • D、 It can best be represented by the equation (kilobytes read/kilobytes written) *100

相似考题
更多“In an iostat r”相关问题
  • 第1题:

    在Solaris系统中,系统管理命令iostat的用途是()


    正确答案:报告中央处理器(CPU)统计信息和整个系统、适配器、tty设备、磁盘和CD-ROM的输入/输出统计信息

  • 第2题:

    Which of the following commands should be used to observe the number of system calls per second? ()

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

    正确答案:D

  • 第3题:

    Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound?()

    • A、 tin
    • B、 tout
    • C、 % idle
    • D、 % tm_act

    正确答案:D

  • 第4题:

    Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?()

    • A、20% 
    • B、40% 
    • C、60% 
    • D、80%

    正确答案:A

  • 第5题:

    Which of the following phrases is TRUE regarding monitoring disk I/O with iostat?()

    • A、 The iostat can only be run as the root user
    • B、 There could be zero percent I/O wait and still be an I/O bottleneck
    • C、 Any I/O wait time displayed in output of "iostat" is an indication of severe I/O bottlenecks 
    • D、 Running "iostat" without any arguments/parameters is sufficient for resolving I/O bottlenecks

    正确答案:B

  • 第6题:

    Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system?()

    • A、 foo ; lsps -s
    • B、 tprof -kx ; foo
    • C、 iostat ; foo ; iostat
    • D、 vmstat -s ; foo ; vmstat s

    正确答案:D

  • 第7题:

    下面的AIX系统性能检查命令,正确的是()。

    • A、检查CPU性能:使用vmstat、topas命令
    • B、检查内存使用情况:使用vmstat、topas命令
    • C、检查IO平衡使用情况:使用iostat命令
    • D、以上全对

    正确答案:D

  • 第8题:

    单选题
    Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound?()
    A

     % idle

    B

     % sys

    C

     % user

    D

     % iowait


    正确答案: A
    解析: 暂无解析

  • 第9题:

    填空题
    在Solaris系统中,系统管理命令iostat的用途是()

    正确答案: 报告中央处理器(CPU)统计信息和整个系统、适配器、tty设备、磁盘和CD-ROM的输入/输出统计信息
    解析: 暂无解析

  • 第10题:

    单选题
    If a system administrator wants to show only a disk report for disk2, at two second intervals, what is the correct command to run?()
    A

     iostat disk1 1 

    B

     iostat -d disk1 2 

    C

     iostat disk2 1 

    D

     iostat -d disk2 2


    正确答案: C
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the following commands should be used to observe the number of system calls per second? ()
    A

     sar 

    B

     iostat 

    C

     svmon 

    D

     vmstat


    正确答案: B
    解析: 暂无解析

  • 第12题:

    单选题
    Which command series should be used to determine whether file paging or paging space paging is a problem when running a program from an idle system?()
    A

     foo ; lsps -s

    B

     tprof -kx ; foo

    C

     iostat ; foo ; iostat

    D

     vmstat -s ; foo ; vmstat s


    正确答案: C
    解析: 暂无解析

  • 第13题:

    iostat可以查看服务器内存大小。


    正确答案:错误

  • 第14题:

    In an iostat report, which of the following options best describes the value of % idle?()

    • A、 A representation of the equation (tps/kbps)*100
    • B、 The percentage of time the disks are idle with no activity
    • C、 The percentage of time the disks are idle with no outstanding CPU requests
    • D、 The percentage of time the CPU is idle with no outstanding disk I/O requests

    正确答案:D

  • 第15题:

    An administrator attempted to run a sar -u report and received the following error: sar: 0551-201 Cannot open /var/adm/sa/sa12.  Which of the following should be scheduled in adm’s crontab to enable sar reporting()

    • A、sar
    • B、sa1
    • C、vmo
    • D、iostat

    正确答案:B

  • 第16题:

    If a system administrator wants to show only a disk report for disk2, at two second intervals, what is the correct command to run?()

    • A、 iostat disk1 1 
    • B、 iostat -d disk1 2 
    • C、 iostat disk2 1 
    • D、 iostat -d disk2 2

    正确答案:D

  • 第17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18题:

    Users are complaining of slow performance. The iostat command indicates hdiskxxx is extremely busy. There is no activity on any other hdisks in the same volume group. Which of the following is the best action to take?()

    • A、Change intra policy to outer
    • B、Change intra policy to center
    • C、Change inter policy to maximum
    • D、Increase the physical partition size

    正确答案:C

  • 第19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20题:

    单选题
    Which of the following phrases is TRUE regarding monitoring disk I/O with iostat?()
    A

     The iostat can only be run as the root user

    B

     There could be zero percent I/O wait and still be an I/O bottleneck

    C

     Any I/O wait time displayed in output of iostat is an indication of severe I/O bottlenecks 

    D

     Running iostat without any arguments/parameters is sufficient for resolving I/O bottlenecks


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    A system administrator ran the iostat command because of system performance problems. The following iostat output is provided: Based on the output, which of the following is insufficient?()
    A

    CPU

    B

    Memory

    C

    Paging space

    D

    Disk capacityX


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?()
    A

    20% 

    B

    40% 

    C

    60% 

    D

    80%


    正确答案: C
    解析: 暂无解析

  • 第23题:

    单选题
    All of the following types of statistics are reported by the iostat command tool EXCEPT:().
    A

     Free memory

    B

     CPU statistics 

    C

     Disk statistics 

    D

     Terminal statistics


    正确答案: D
    解析: 暂无解析