In some rare scenarios where you can’t even power off the virtual machine on VMware ESXi. This happens if the virtual host lost the I/O path or some issues related to I/O subsystems.In this situation,when you tried to power off the virtual machine,you will get error messages like “The operation can’t be allowed at the […]
Configuring VMware ESXi virtual machine console – VNC ?
In VMware ESXi 5.5 ,you can use VNC client to connect virtual hardware console for Solaris,Linux and windows guest operating systems by enabling VNC server. So that you can take the virtual machine consoles using any VNC viewer and no need to login to VSphere Client for any guest OS consoles .This is really good […]
How to Upload files to ESXI DataStore using Web-Client?
To recover the virtual machines on VMware ESXi , you need the installation DVD copy of it.Not all the time you can relay on the VMware snapshot to recover the guest OS and that is not a good practice. If you have the copy of installation DVD , you can recover those virtual machines from […]
How to Add ISCSI storage to VMware ESXi 5.5 ?
Here we will see how to add the ISCSI storage to the Vmware ESXi 5.5 hosts using VSphere web-client.As you know ISCSI storage is very cheap and many companies are preferred to deploy ISCSI storage for low and mid range servers. ISCSI can’t match the performance with FC SAN but cost wise its very affordable. […]
How to Run Vertias Explorer for Specific Module ?
Veritas explorer is a utility provided by Symantec to collect the necessary system information along with their products veritas volume manager and veritas cluster information.If you just run the veritas explorer,it will collect all their product information,logs,cores and other information for investigation. You have to provide the veritas explorer if you need any assistance from […]
Solaris Local Zone’s lsof
In Solaris local zone lsof will not work.By default all the application should have configured with specific port number.But sometimes your application will not start if that port has been already occupied by another application process.In this situation, you will get error like “unable to bind port <port-number>”if you try to start the application. Traditionally we […]
How to Identify Solaris Processor Cores ?
For hardware inventory, we may need to provide the Processor details like number installed physical processors , number core per processor on Solaris SPARC and X86 system. SunMicro system doesn’t make any complication to identify the CPU information on Solaris Operating system.To list the physical processor and core,we have the binary called “prsinfo” to pull the […]
How to upgrade SUN T5220 System Firmware Upgrade ?
We need to update the system firmware periodically to stay away from the bugs.Oracle hardware firmware can be download from the oracle website after logging with the support id. By upgrading the system firmware,system can support new devices,better performance,better availability and add more security to the system. In a order to upgrade the system firmware,y ou need to […]
How To Increase Ulimit Values in Redhat Linux ?
Shells like bash/csh/ksh are responsible to provide the control over various system resources to the user. Otherwise, one normal user may utilize the complete system resources and system won’t be available for other users. So setting the limit to users is very important and you need to be very careful before granting shell limits to […]
How to Measure the Network Bandwidth Between Solaris Nodes?
There is no command available in any Unix like operating systems to measure the actual bandwidth of network by sending the real packets over the network. OS developers intentionally left out this option since such type of commands will hammer the system network. But we need such kind of tool in project phase of the system where you need to perform some […]