2011年5月9日星期一

Online vs Offline Data Backup- Part 2_2362

Online vs Offline Data Backup: Part 2 A Look at Offline Data Backup

Improved Security

As I mentioned in Part 1, the offline data backup method may be the better option for you if you're concerned about transmitting sensitive data (albeit, encrypted data) over public internet pathways. However, I should note that there are ways to add another layer of security to this transmission process.

For example Toshiba Satellite a205 Battery, configuring a VPN (Virtual Private Network) tunnel between your business location and your secondary office / backup location. Check out this great article on Secure VPNs for Small Businesses by BrightHub contributing editor Joe Taylor, Jr. There are multiple encryption levels to choose from as well so you should choose the type that makes the most sense for the type of data you're backing up. To help you get an idea of where to start, check out Encryption Planning - What Data Should You Encrypt?, a great article by BrightHub managing editor Brett Callow.

So let's say you've looked into VPN and data encryption and you still feel that managing your data backup offline with, for example Dell Inspiron E1705 Battery, a product such as Acronis True Image is a better fit for your business. What's the next step?

How to Start

There are a number of different backup media types to choose from. The most popular type of offline backup system is probably a specialized backup server that incorporates some type of RAID configuration for fault tolerance. Other popular types of backup systems incorporate burnable CD/DVD drives or digital tape drives.

In a way, these types of removal media (since it's not ideal to remove server drives on a nightly/weekly basis) add an off-site twist to your on-site backup. I once worked for a company where I was responsible for all server data backup and storage. We used a digital tape backup system that employed an incremental backup schedule. We also used four different sets of seven backup tapes (one set for each week) and rotated them on a weekly basis. This added a layer of fault tolerance should a tape fail or get damaged.

Every Friday, that week's set would be placed in a fireproof case and my team would take turns taking it home with them for the weekend. This ensured that data could be restored should something happen to the office such as a fire or break-in. Granted this was roughly ten years ago Ibm Thinkpad T400 Battery, so more reliable media and more advanced backup systems are currently available, but I wanted to give you an example of an offline data backup routine put into practice.

Hopefully you now have a grasp on the differences between online and offline data backup systems. But which is better? That decision is somewhat subjective based on the sensitivity of the data you're backing up and the method you're most comfortable with. But is one more secure than the other? Is one more costly than the other? Is it possible to have a combination of both? Check out Part 3 for answers to these questions and more.

2011年5月6日星期五

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This very day within Pc History
1959
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1973
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1987
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1990
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2011年5月5日星期四

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2011年5月4日星期三

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Seagate versus Hitachi Hard disk drives
Seagate versus Hitachi Difficult Drives
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Image Credit score: Wikimedia Commons/Tor
Hitachi Deskstar 7K2000
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Seagate Barracuda XT ST32000641AS
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Decision Time
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2011年5月3日星期二

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2011年5月2日星期一

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2011年4月29日星期五

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