If you are working as a Sun Solaris system administrator, you know that how rapidly Solaris operating system is changing from version to version. There were a lot difference between Solaris 9 and Solaris 10. But people were able to grab the changes quickly in the past when it was transformed from Solaris 8/9 to […]
VMTurbo 5.0 – Control in the Software Defined Universe
Virualization is very powerful technology but it comes with greater responsibility as well. If you do not configure or maintain your virtual environment properly, it will affect whole environment. Do you would like to know how ? In most of the cases , SAN storage systems will be shared for all the physical and virtual […]
Exadata Storage Cell Commands Cheat Sheet
It is not an easy to remember the commands since most of the UNIX administrators are working on multiple Operating systems and different OS flavors. Exadata and ZFS appliance are adding additional responsibility to Unix administrator and need to remember those appliance commands as well. This article will provide the reference to all Exadata storage […]
Exadata – Distributed Command-Line Utility (dcli) – Part 6
Distributed command line utility(dcli) provides an option to execute the monitoring and administration commands on multiple servers simultaneously.In exadata database machine , you may need to create the griddisks on all the exadata storage cells frequently. Each time , you need to login to all the storage cells and create the griddisk manually.But dcli will make […]
Exadata Storage Cell – Administrating the Disks – Part 5
Exadata Storage server uses the cell software to manage the disks. Like volume manager, we need to build couple of virtual layers to get the grid disks.These griddisk will be used to create the ASM disk group on the database level . In this article, we will see that how we can create/delete the celldisk, […]
Exadata – CELLCLI command Line Utility1 – Part 4
Exadata storage is managed by CELLCLI command line utility. Management process (MS) will communicate with cellcli to maintain the configuration on the system. CELLCLI utility can be launched by user “celladmin” or “root”. In this article ,we will see how to list the storage objects and how to stop/start the cell services using the CELLCLI […]
Exploring the Exadata Storage Cell Processes – Part 3
Exadata storage cell is new to the industry and only oracle is offering such a customized storage for oracle database. Unlike the traditional SAN storage ,Exadata data storage will help to reduce the processing at the DB node level. Since the exadata storage cell has its own processors and 64GB physical memory , it can […]
Architecture of Exadata Database Machine – Part 2
Exadata Database machine provides a high performance,high availability and plenty of storage space platform for oracle database .The high availability clustering is is provided by Oracle RAC and ASM will be responsible for storage mirroring .Infiniband technology provides high bandwidth and low latency cluster interconnect and storage networking. The powerful compute nodes joins in the RAC […]
Exadata DataBase Machine Overview – Part 1
This article is going to provide the overview about the Oracle’s Exadata database machine and the benefits of this engineering system. Oracle Database machine is fully integrated with oracle databases and it uses Exadata storage servers.This machine provides high performance and high availability for all type of database workloads.It also completely eliminates the all the […]
Do not virtualize your Environment using Hypervisor !
Virtualization is definitely saving the IT cost and most of the companies are benefiting from it.But at the same time, you should not virtualize the all the environment using hypervisors without analyzing it. Hypervisor Virtualization may not be a good choice for heavy work load systems and some specific applications. These items needs to be identified prior […]