Solaris : Configuring Kernel Parameters
You can display the current kernel parameters values by using the ‘sysdef -i’ command.
Category: Solaris Admin
Solaris Troubleshooting : System Hang – Sun Fire 280R
Step 1) What is exact cause of system hang (system, RSC, network)
Solaris patching for new learners.
What is a patch? A patch fixes problems that prevent the proper execution of software. It is a collection of files and directories that replace or update existing files/binaries and directories. The entire OS is installed as a collection of Solaris packages. It is done during...
Solaris – Identify the product used for Storage Multipathing
For Solaris 8 hosts the common multipathing product is VxDMP or EMC PowerPath. And for Solaris 10 hosts it can be MPxIO (the majority), VxDMP or EMC PowerPath. It is important to note that both VxDMP and MPxIO can be active at the same time;...
VxVM Troubleshooting – Procedure to Replace Internal FibreChannel (FC) Disks controlled by VxVM
Hot swapping of a failed disk is fairly straight procedure if the disks are regular SCSI disks, but for the Fibre Channel (FC) disks we should follow different procedure for hot swaping. Below specific procedure should be used when replacing one of the internal disks in...
Using "asr-disable" to disable PCI slots from OK prompt – Servers V440 or V490
System Administrators encounter frequent issues with onboard PCI slots after the maintenance operations like the OS upgrades, patch installations and firmware upgrades. And often it will leave us in a situation that we couldn’t boot up the machine, because of the issues to recognize PCI slots after...
Solaris SVM – How to check on a running machine which disk was used to boot.
It is often possible that we boot from a Solaris machine from one of the root mirror disk, and after sometime we forget current active disk. And the information of active boot disk is important while we perform SVM maintenance disks. This post will help you...
Solaris Performance Monitoring – Finding CPU / IO / Memory Bottlenecks – Demo Video
This Video presents you the procedure to investigate various performance bottlenecks related to Memory, CPU and IO using the commands iostat, vmstat and prstat.
Solaris IPMP – Diagnosis and Troubleshooting
Symptoms: * mpathd error messages in /var/adm/messages: No test address configured on interface <interface_name> disabling probe-based failure detection on it Test address address is not unique; disabling probe based failure detection on <interface_name> The link has gone down on <interface_name> Successfully failed over from NIC <interface_name1>...
Solaris 11 – How to Configure Solaris SMF services
How to Modify an SMF Service Property This procedure shows how to modify the property that identifies the user that can start a service. Become an administrator Change the value that is assigned to the start/user property.First, give the FMRI to identify the appropriate service....