Seagate Announces 1TB Drives
Anh Tuan Huynh
June 25, 2007 3:15 PM
comment(s) - last by
New Barracuda 7200.11 and ES.2 offer capacities up to 1TB with 32MB caches
Seagate today unveiled two 1TB hard drives for consumer and enterprise markets – the new
Barracuda 7200.11 and Barracuda ES.2
. Seagate claims to have “the world’s most advanced family of one terabyte drives” with the new Barracuda models.
The new Barracuda 7200.11 is the follow up to last year’s
, ready to take on
Hitachi and Samsung 1TB
offerings. Seagate packs the 1TB Barracuda 7200.11 with 32MB of L2 cache, SATA 3.0Gbps and native command queuing support. The Barracuda 7200.11 makes use of four 250GB platters with second-generation
perpendicular magnetic recording technology
, or PMR. Seagate claims the new Barracuda 7200.11 can sustain 105MB/s data rate.
Even with four platters, Seagate claims the new Barracuda 7200.11 only draws 8-watts during idle and 11.6-watts during seek. Acoustically, the Barracuda 7200.11 generates around 27-to-29 decibels of noise during idle and seeking tasks. As with all new Barracuda generations, the 7200.11 improvements and technologies trickle down to smaller sizes. Seagate also offers the Barracuda 7200.11 in 750GB and 500GB sizes with the same 32MB buffer and PMR technology. Due to smaller sizes, the 750GB drive makes use of three platters while the 500GB drive has two platters.
Seagate’s new Barracuda ES.2 models cater towards the enterprise markets. Although it is similar to the Barracuda 7200.11, Seagate offers the ES.2 with serial attached SCSI, or SAS, interfaces. Seagate has also raised the MTBF rating of the Barracuda ES.2 to 1.2 million hours, up 200 thousand hours from the previous Barracuda ES.
Expect the Barracuda 7200.11 and ES.2 to arrive sometime this quarter in capacities up to 1TB. Seagate prices the 1TB Barracuda 7200.11 with an MSRP of $399. As with other Seagate drives, the new Barracuda 7200.11 and ES.2 come with five year warranties.
This article is over a month old, voting and posting comments is disabled
6/26/2007 7:57:52 AM
Most HD's use a magnetoresistive element as a read head. That is, the head has a rotatable magnetic domain that reacts when it is exposed to external magnetic fields, e.g., the magnetic grains in the recording layer of a HD platter. As the domain in the head moves, the resistance of the head changes. This reistance change is monitored by the drive electronics and corresponds to the data on the disk.
To improve the read speed of a MR head, the magnetic domain must be allowed to re-orient itself more easily in response to the presence or absence of an external magnetic field. In other words , the coercivity of the head must be decreased. Reduction in head coercivity is also necessary to allow the head to read high areal density media, as the information stored on such media is present in smaller magnetic grains that output a less intense magnetic field
The issue with reducing coercivity is that that the orientation of magnetic domains is also affected by temperature. If the coercivity of the MR head is lowered beyond a certain point, it becomes very difficult to maintains the orientation of the domains in the head (they spin randomly) at room temperature.
One thing most people do not realize is that in most cases, the major components of a hard drive must be developed in conjunction with one another, else they will not work. Hopefully my posts clarified some of this.
6/26/2007 8:53:31 AM
Great posts, thanks patentman!
6/26/2007 9:04:58 AM
Great info, Patentman!
Thanks for the clarification, I had some misconceptions about this :D
"And boy have we patented it!" -- Steve Jobs, Macworld 2007
Seagate, Samsung Begin to Ship 1TB Desktop Hard Drives
June 19, 2007, 12:20 PM
750GB Seagate Drives On Store Shelves: $540
April 28, 2006, 2:59 AM
Samsung Adds 2 TB 850 EVO, PRO SSDs for $800, $1000
July 7, 2015, 4:23 PM
Seagate Senior Researcher: Heat Can Kill Data on Stored SSDs
May 13, 2015, 2:49 PM
How to Recover Most Apps After Your NVIDIA Driver Crashes in Windows 10
March 30, 2015, 12:54 PM
Tinkerer Gets Old School Mac Plus Running on the Modern Web
March 24, 2015, 6:41 PM
Facebook-Backed Oculus Rift's Release Date Slips to 2016; Valve and HTC Salivate
March 16, 2015, 5:58 PM
Hackers Steal Roughly $1 Billion From Banks Using Malware RAT
February 17, 2015, 9:30 AM
Most Popular Articles
As iPad Sales Wane and Watch Flops, iPhone Saves Apple's Profit With Its Heroics
July 22, 2015, 6:13 PM
Editorial: Reddit Allows Itself to be Hijacked as a Hate Platform For Racist Bigots
July 21, 2015, 6:32 PM
Microsoft July 29 Windows 10 Launch: Freebies, Rollout, and What's Next
July 21, 2015, 2:40 PM
Quick Note: Apple Watch to Get Brick and Mortar Boost From Best Buy
July 27, 2015, 3:00 PM
Mozilla and Facebook to Adobe: It's Time to Kill Flash
July 20, 2015, 6:30 PM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2015 DailyTech LLC. -
Terms, Conditions & Privacy Information