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 […]
Virtual Machine Live Migration – How it works ?
Virtualization’s revolution has pushed many technical challenges from “impossible” category to the “possible” category. Live Guest OS Migration can be considered as one of the major benefits of the OS virtualization. Migrating the virtual machine from one host to another host without downtime facilitates fault management, load-balancing, and low-level system maintenance. It has eliminated all difficulties faced […]
Para virtualization vs Full virtualization vs Hardware assisted Virtualization
Virtualization is nothing but abstracting operating system, application, storage or network away from the true underlying hardware or software. It creates the illusion of physical hardware to achieve the goal of operating system isolation. In last decade, data centers were occupied by a large number of physical servers, network switches, storage devices. It consumed a lot of […]
LINUX – SCSI Device Management – Identifying Devices
This article is going to share very least used SCSI commands on Linux operating systems. These commands will be very useful to identifying SCSI devices and tuneable parameters. There are few utilities which can be used to get the detailed information about the scsi devices. lsscsi is most command tool which scans sysfs pseudo file […]
CLOUD WAR – Openstack vs VMware vSphere vs Amazon AWS
Cloud War or Data-center war ? There is a healthy competition out in the market to reduce the overall operating cost on IT. Companies are benefited with the cloud revolution, Virtualization and automation. Most of the organisations are moving towards asset free to reduce their additional investments on IT equipment. But all the organizations can’t just […]
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 […]
Amazon AWS – Change EBS volume type using Snapshot – Part 14
This article will walk through that how to change the AWS EBS volume type using snapshot feature. There is a limitation with AWS that you can’t change the volume type on fly. You must need to halt the instance and change the volume type. But again , you can’t switch to all the volume types […]
Amazon AWS – Change volume type – SSD GP2 to SSD IOPS – Part 13
This article will walk through that how to change the AWS EBS volume type from SSD GP2 to SSD IOPS volume type. Changing the volume type is not straight forward for all the volume types. Due to the instance limitation, you can’t change the volume type on the fly. You need to halt the instance […]