As we all know that from Solaris 10 on-wards legacy method of starting and stopping service has been replaced by SMF (Service management facility) service management. Here we are not going in depth of SMF history and theory.Here we will see how to get the list of SMF service installed in server,how to see the dependencies and dependents services,Service tree map and […]
Solaris 10
rcapadm – Solaris Online Resource Capping
As you know, system resources like CPU,MEMORY,SWAP can be limited to Solaris local zones using capping.We do the resource capping by just using “zonecfg” command. But the changes are instantaneous ? No. You need to reboot the local zone in a order to take the settings effect.Here we will see how to make the changes instantaneous. But instantaneous […]
Solaris Zone’s Resource capping – MEMORY-CPU
Solaris Zone’s Resource capping: Resource capping is nothing but Limiting the system resources like CPU,Memory,SWAP to local zone.For an example, if you are running local zones without a resource capping,there may be high possibility that one zone will consume all the global zone resources and it will effect other local zones which are running the same global zone.We […]
How to use snoop in Solaris ?
Snoop is a inbuilt packet analyzer tool in oracle Solaris operating system.It is used for network troubleshooting and analysis.But normal user do not have permission to run snoop command.Only root user can run it.Snoop command having option to redirect the output to file.This file can be analysed later using snoop command itself or you can use wireshark tool for that.If […]
Solaris Process Inspection Commands
Oracle Solaris provides many utilities for inspecting the state of process which are running on the system.Using the process inspection commands ,we can dig in to the process in detail manner for in depth troubleshooting.Here we are going to see many process introspection command which will very handy on application trouble shooting.This article is based on Solaris internals book. Please see […]
How to find the Solaris global zone from local zone using script
Many of the Solaris administrators will break their head to find Solaris global zone name from localzone. These kind of questions may asked in interviews too.How do you find it ? The answer is No.There is no simple command to find it.Because Oracle (Sun microsystems ) designed the Solaris zones in such a way for that, you can’t find the global zone from local […]
ZFS – How to increase rpool in Solaris
We have an issue in ZFS “the next generation filesystem” as well.In ZFS, you can not extend the root pool by adding new disks.But it has some logic too. For an example,if you are having more than one harddisk in root zpool, loss of one disk result be un-bootable system.To eliminate these kind of situations ,its better to keep […]
Solaris Process controlling – proc tools
In the last post, we have seen about process status using prstat.But here we are going to see how to control the process using pid in Solaris Many of the Solaris administrator may thinking how to freeze the process ? Some beginners may still have doubt that how to kill the process? Some of them may still wondering how start […]
Solaris Processes Monitoring – prstat
Solaris has number of tools to examine process details and those just reading the /proc directory. These tools are very useful in application troubleshooting and analyzing the system performance. This article is based on “Solaris™ Internals: Solaris 10 and OpenSolaris Kernel Architecture” book. I would strongly recommend this for all the Solaris administrators. Here we […]
Solaris 10 – Local zone wise utilization Report using zonestat
I am sure many of the Solaris administrators will break their head in an order to find Solaris local zones wise resource utilization details on oracle Solaris 10. Because there is no simple inbuilt tool to find these details in Solaris 10 (Apart from prstat -Z). I just come across Jeff Victor’s Blog and found this […]