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Seagate 7200.11 1.5TB HDD  (Source: Seagate)
Seagate 1.5TB HDD uses four platters

It has only been about a year and a half since the first 1TB hard drives began to hit the market -- Hitachi was the first to unveil its 1TB HDD in January of 2007.

Just this week Hitachi unveiled its second generation 1TB HDD with a 43% power savings compared to the first generation. The Hitachi drive uses three platters to get the 1TB capacity and save energy. Today, Seagate announced the world’s first 1.5TB desktop hard drive called the Barracuda 7200.11 1.5TB.

As you can gather by the name, the drive spins at 7,200 RPM and uses four platters to reach the massive 1.5TB capacity. Seagate says that this is the largest increase in storage capacity in the last 50-years and the 500GB increase in capacity is thanks to improved perpendicular magnetic recording technology.

Along with the 1.5TB 3.5-inch desktop HDD, Seagate also announced new 500GB 2.5-inch HDDs for use in notebooks. The 500GB notebook drives will ship in 5,400 and 7,200 rpm varieties. The drives are known as the Momentus 5400.6 and Momentus 7200.4 HDDs. The 5,400 RPM drive uses an 8MB cache and the 7,200 drive has a 16MB cache.

Seagate executive VP and general manager of Personal Computer Business Michael Wingert said in a statement, “Organizations and consumers of all kinds worldwide continue to create, share and consume digital content at levels never before seen, giving rise to new markets, new applications and demand for desktop and notebook computers with unprecedented storage capacity, performance and reliability. Seagate is committed to powering the next generation of computing today with the planet’s fastest, highest-capacity and most reliable storage solutions.”

Seagate announced in 2006 that it expected capacity of HDDs to hit 2.5TB by 2009. The Seagate 1TB HDD was announced a bit over a year ago in June 2007.



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By TomZ on 7/10/2008 4:41:23 PM , Rating: 2
The situation you describe, having to back up data stored on a HDD, always existed with any size HDD. So if your preferred method is to clone to another drive, you always needed to buy them in pairs...or use RAID mirroring.

Also, SSD doesn't solve the problem, since they are not guaranteed 100% reliable. And even if they were, you'd still want to back up important data to cover faults like user error, e.g., I just deleted a file by accident.


By xphile on 7/10/2008 11:26:20 PM , Rating: 2
Yes the situation has always existed, but using HDD as the "preferred method" is become less a preference and more a prerequisite.

For a long time a CDR and then DVDR could get into the ballpark of being good backup mediums. Now per Gb, an awful lot of HDD are almost, or as cost effective, as DVD writable for storage - and a whole lot faster on and off the medium.

With drives from Seagate all having 5 year warranties now I've found it a no brainer, all my backup is to external HDD and the stuff I need to transfer about goes onto Corsair GT USB stick. Im using Vantec NexStar Dual bay SATA enclosures - up to 2 TB in each box. Important stuff is on 2 drives plus the original.

Where I would see these drives as a great improvement would not be in the drive needing to be backed up - but in the drive doing the backing up - whereby a number of smaller drives can all be contained on the one master backup.

Of course the cost factor is higher when they are newer - but it all works uniformly across the board - new drives push the older ones down in price.

Certainly Hard disks are increasing in size and dropping in price far faster than it would seem that Bluray is likely to, so I cant see optical storage coming back as a viable backup alternative for people like me anytime soon.

SSD is a nice idea - but its all about performance really - and at a high price, so I agree its not in the game there yet.


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