% idle
% sys
% user
% iowait
第1题:
Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound?()
第2题:
Which of the following phrases is TRUE regarding monitoring disk I/O with iostat?()
第3题:
In order to determine how efficiently an application is reading and writing data, which of the following utilities will report read and write sizes on disk I/O requests?()
第4题:
Which of the following commands should be used to report statistics on network protocols used by the system?()
第5题:
An AIX system, which is running a database, is having performance issues with I/O writing. The DBA has provided numbers for the HIGH and LOW watermarks for pending file writes, which will optimize the system for best performance. To set these numbers, which of the following commands would be used?()
第6题:
CPU
Memory
Paging space
Disk capacityX
第7题:
filemon
istat
vmstat
iostat
第8题:
sar
iostat
svmon
vmstat
第9题:
The total CPU usage for this drive
The bandwidth utilization of the indicated drive
It can best be represented by the equation (%iowait - %ioidle)
It can best be represented by the equation (kilobytes read/kilobytes written) *100
第10题:
df
diagrpt
errmsg
errpt
第11题:
% idle
% sys
% user
% iowait
第12题:
tin
tout
% idle
% tm_act
第13题:
Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?()
第14题:
Which of the following commands can be used to determine if a disk drive is causing a bottleneck?()
第15题:
Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem?()
第16题:
A user calls to report they are getting I/O errors on a file system. Which of the following tools should be used to isolate this problem?()
第17题:
In an iostat report, which of the following options best describes the value of % iowait?()
第18题:
The amount of time taken to service an I/O interrupt
The percentage of time CPU(s) are waiting for page ins
The percentage of time the CPU9(s) are waiting on network
The percentage of time the CPU(s) are waiting for outstanding disk I/O requests
第19题:
vmstat
fileplace
iostat
lvmstat
第20题:
tprof
iostat
svmon
filemon
第21题:
The iostat can only be run as the root user
There could be zero percent I/O wait and still be an I/O bottleneck
Any I/O wait time displayed in output of iostat is an indication of severe I/O bottlenecks
Running iostat without any arguments/parameters is sufficient for resolving I/O bottlenecks
第22题:
20%
40%
60%
80%
第23题:
perfmon -h 30 -l 25
chdev
no -o
smit chgsys
第24题:
lsattr
pstat
netstat
ifconfig