Veritas volume manager is robust volume manager software and mostly used on Oracle Solaris, HP-UX and Linux Operating systems. In some cases, after the host reboot, you might get an error that “Disk group has no valid configuration copies” when you try to import the existing Veritas disk group. This error common in SRDF environment […]
Oracle Solaris
Oracle Solaris – Performance Troubleshooting using DTrace Toolkit
In this article, we will look at DTrace toolkit which is used to troubleshoot performance issues on Solaris operating systems. One of the co-authors of Solaris Performance and Tools [McDougall2007V2], Brendan Gregg, created this toolkit. It contains numerous d-scripts as well as Perl scripts that pre-process and post-process DTrace. DTrace toolkit is included in Oracle Solaris 11 and the […]
Meltdown and Spectre Vulnerabilities – Big Threats
Meltdown and Spectre Vulnerabilities have made 80% of servers as Vulnerable in overnight, thanks to Google Project Zero team and other security researchers who have brought such a worst vulnerabilities to the world (At least now). Meltdown vulnerability basically melts security boundaries which are normally enforced by the hardware (CPU). Spectre name is based on the root cause, “speculative […]
Configuring VLAN on LDOM – Oracle Solaris
Oracle VM for SPARC also known as LDOM is a hypervisor used to virtualize the Oracle Solaris environment on T & M series Oracle/ Fujitsu Hardware. This article will walk through to configure the VNIC with specific VLAN number for guest LDOMs. Before getting into the VLAN part, you must understand the virtual networking on […]
Veeam Extends Data Protection For AIX & Solaris
Veeam is known for VMware vSphere and Microsoft Hyper-V’s data protection solution. Veeam is a market leader in X86 virtualization world but now they would like to grab the opportunity in another enterprise world where the system runs on RISC chips. Majority of enterprise data protection solution for RISC systems are offered by Veritas Netbackup and […]
Oracle Solaris Cluster – Configure Standby Oracle Database – Dataguard – Part 2
Here is the step by step procedure to bring the oracle Dataguard standby instance under sun cluster control.Once you have completed the primary node setup , you are good to proceed with standby configuration. In this oracle Dataguard configuration ,we will be using the standby nodes as DR servers and it must be configured as […]
Oracle Solaris Cluster – Configure Oracle Database with Dataguard- Part 1
This article will provide step by step procedure to manage the oracle Database under Sun-cluster aka Solaris cluster on Oracle Dataguard environment. Oracle Dataguard is widely used product for the disaster recovery solutions.It provides great visibility to database administrator to manage their environment in better manner. Sun-cluster is used only on oracle Solaris operating system […]
Find Last Patched date on Oracle Solaris
Sometimes, we might need to find the last patched date on Solaris server for PCI compliance requirement. Many organizations are started using the configuration management tools to capture last patched date or maintenance date. But in a legacy environment, we might need to do the reverse engineering to identify last patched date for the server. Let’s […]
Managing Zone Cluster – Oracle Solaris
This article will talk about managing the Zone Cluster on oracle Solaris. The clzonecluster command supports all zone cluster administrative activity, from creation through modification and control to final destruction. The clzonecluster command supports single point of administration, which means that the command can be executed from any node and operates across the entire cluster. […]
Sun Cluster – Configuring Resource Group in Zone Cluster
This article will walk you through how to configure a resource group in zone cluster. Unlike traditional cluster, resource group and cluster resources are should be created inside the non-global zone. The required physical or logical resources need to be pinned from the global zone using “clzonecluster” or “clzc” command. In this article, we will […]