What does the iostat command do in Solaris?
What does the iostat command do in Solaris?
Use the iostat command to report statistics about disk input and output, and to produce measures of throughput, utilization, queue lengths, transaction rates, and service time. For a detailed description of this command, refer to the iostat(1M) man page.
What does the summary of iostat show on boot?
By default if you run iostat without any options it will show the summary since boot which is very useful to compare the system performance in a bottleneck vs average system performance. # iostat tty sd0 sd1 sd2 sd3 cpu tin tout kps tps serv kps tps serv kps tps serv kps tps serv us sy wt id 0 5 18 1 19 0 0 0 0 0 0 0 0 0 0 1 0 99
How to get disk I / O statistics using iostat?
We can also get disk I/O statistics only for a specific disk or set of disk using iostat : # iostat -dl 2 sd0 sd4 1 3 sd0 sd4 kps tps serv kps tps serv 16 0 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Where can I find information about Oracle Solaris?
Locating Information About Oracle Solaris Commands 2. Managing User Accounts and Groups (Overview) 3. Managing User Accounts and Groups (Tasks) 4. Booting and Shutting Down an Oracle Solaris System 5. Working With Oracle Configuration Manager 6. Managing Services (Overview) 7. Managing Services (Tasks) 8. Using the Fault Manager 9.
When to use iostat to troubleshoot disk I / O?
Iostat is one of the most useful command when troubleshooting a disk I/O performance issue. It can also be used to troubleshoot a CPU performance issue as well. The iostat command can be run in various ways.
How to run iostat with delay in Linux?
8) iostat -k 2 3 Command: This command displays CPU and device statistics with delay. Same with the vmstat, as a statistic tool is the best way to use it with delay parameter. With the delay, we can see that what’s the trend. Here are some of the samples to run iostat with delay.
How to display extended Statistics in iostat command?
5) iostat -xd Command: This command shows us the extended I/O statistic for device only. We can display extended the statistic on one side and from the other side we can display the extended statistics. It means that we can display the extended statistics only for devices with the help of -xd option as below:
