Friday, August 16, 2013

The Warehouse to the Web

The Warehouse to the Web
In early implementations, the corporate data warehouse was intended for managers, executives, business analysis, and a few other high level employees as a tool for analysis and decision making. Information limn the data warehouse was delivered to this group of Users in a client/server environment. But today's data warehouses are no longer confined to a select group of internal users. Under present conditions, corporations need to increase the productivity of all the members in the corporation's value chain. Useful information from the corporate data warehouse must be provided not only to the employees but also to customers, suppliers and all other business partners.

So in today's business climate, you need to open your data warehouse to the entire community of users in the value chain, and pet hips also to the general public. This is a tall order. Low can you accomplish this requirement hi serve information to thousands of user in 24 x 7 mode'? How can you do this without incurring exorbitant costs for information delivery'? T.lic Internet along with Web technology is the answer. The Web will be your primary information delivery mechanism.

This new delivery method will radically change the ways your users will retrieve, analyze, and share information from your data warehouse. The components of your information delivery will be different. The Internet interface will include browser, search engine, push technology, home page, information content, hypertext links, and downloaded Java or Active X apple is.

When you bring your data warehouse to the Web from the point of view of the users, the key requirements are self-service data access, interactive analysis, high availability and performance, zero-administration client (thin client technology such as Java applets), tight security, and unified metadata.

WEB-ENABLED DATA WAREHOUSE

WEB-ENABLED DATA WAREHOUSE

We all know that the single most remarkable phenomenon that has impacted computing and communication during the last few years is the Internet. At every major industry conference and in every trade journal, most of the discussions relate to the Internet and the Worldwide Web in one way or another...

Starting with a meager number cilium four host computer systems in 1969, the Internet has swelled to gigantic proportions with nearly 95 million hosts by 2000. It is still growing exponentially. The number of Worldwide Web sites has escalated to nearly 26 million by 200). Nearly 150 million global users get on the Internet. Making Full use of the ever-popular Web technology, numerous companies have built I interacts and Extracts to reach their employees, customers, and business partners. The Web has become the universal in-formation delivery system.

We are also aware of how the Internet has fueled the tremendous growth a electronic commerce in recent years. Annual volume of business-to-business e-commerce exceeds 5300 billion and total c-commerce will soon pass the $1 trillion mark. No business can compete or survive without a Web presence. The number of companies conducting business over the Internet is expected to grow to 400,000 by 2003.

As a data warehouse professional, what are the implications for you? Clearly you have to tap into the enormous potential of the Internet and Web technology for enhancing the value of your data warehouse. Also you need to recognize the significance of e-commerce and enhance your warehouse to support and expand your company's e-business.

You have to transfer your data warehouse into a Web-enabled data warehouse. On the one hand, you have to bring your data warehouse to the Web and on the other hand, you need to bring the Web to your data warehouse. In the next two subsections we will discuss these two distinct aspects of a Web-enabled data warehouse.

OLAP Council

OLAP
The OLAP Council was -established in January 1995 as a customer advocacy group to serve as an industry guide. Membership and participation are open to interested organizations. As of -Mid-200(L, the council includes sixteen general members. mainly vendors of OLA P products.

Over the years, the council has worked on OLA P standards for the Multi-Dimensional Application Programmers Interface (MDAPI) and has come up with revisions. Figure 3-9 show a timeline of the major activities or the council.

Several OLAP vendors, platform vendors, consultants, and systems integrators have announced their support for MDAPI 2.0. 

 

Monday, June 17, 2013

70-246 Question 7

70-246 Question 7
Your company has a private cloud that is managed by using a System Center 2012 infrastructure. An administrator installs a new tape drive on a server that has Data Protection Manager (DPM) installed. You discover that the tape drive is unavailable from the DPM Administrator console. You verify that the tape drive is installed correctly on the DPM server. You need to ensure that the tape drive is available from the DPM Administrator console. What should you do from the DPM Administrator console?

70-246

A. From the Agents view, click Install.
B. From the Disks tab, click Add.
C. From the Protection view, click Tape.
D. From the Libraries view, click Rescan.

Answer: D

Explanation:


To configure tape libraries

In DPM Administrator Console, on the navigation bar click Management, and then click the Libraries tab. In the Actions pane, click Rescan. The Rescan operation might take several minutes to complete. DPM will add any library jobs to the queue that began during the Rescan operation. If a library job is already in progress when the Rescan operation begins, the Rescan operation will fail. Configuring Tape Libraries http://technet.microsoft.com/enus/library/ff399665.aspx

70-246 Question 6

70-246 Question 6
Your company has a private cloud that is managed by using a System Center 2012 infrastructure. You deploy Data Protection Manager (DPM) to the private cloud. You configured DPM to back up the following information on 20 servers that run Windows
  • Server 2008 R2:
  • Data volumes
  • System state data
  • Volume mount points
You discover that the system state backup failes on all of the servers. You can verify that all other data is backed up successfully. You need to ensure that the system state backup completes successfully on all of the servers. What should you do?

A. Install Windows Server Backup on each server.
B. Connect each server to a dedicated LUN.
C. Reinstall the DPM agent on each server.
D. Add each server to a dedicated protection group.

Answer: A

Explanation:


A system state backup uses the Windows Server Backup feature to take a snapshot of the system state and saves it locally to the server before moving it to the DPM server storage pool. Troubleshooting Data Protection Manager System State and Bare Metal Backup
http://blogs.technet.com/b/dpm/archive/2011/10/31/troubleshooting-data-protectionmanager-
system-state- and-bare-metal-backup.aspx