Solaris : Configuring Kernel Parameters
You can display the current kernel parameters values by using the ‘sysdef -i’ command.
Category: Blog for Unix Admin
Solaris Troubleshooting : System Hang – Sun Fire 280R
Step 1) What is exact cause of system hang (system, RSC, network)
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 Networking Troubleshooting
The one problem that is vrey common in every system administrator’s life is network issue, and most of the times it will kill entire day if the root cause/symptoms were misunderstood . Below information will help you to understand some of the basic network issues...
Solaris Troubleshooting NFS : error “NFS mount fails with RPC: Program not registered”
When trying to mount an NFS file system from an NFS server, the mount fails with the error message: mount:<server>:/filesystem not responding: RPC: Program not registered
Solaris10: San/SAS/MPXIO/STMS config files
With the release of Solaris 10 Operating System (OS), the configuration of Storage Area Network (SAN), Serial Attached SCSI (SAS) attached devices, and turning on STMS/MPXIO has changed. This Post details the new ways devices are brought into the operating system, and their configuration files. The...