by February 1, 2009 0 comments

Hitachi began the Tera Era by being first to launch a1TB hard drive. Now the
race is on to go beyond that. The first to outdo everyone is Seagate with the
launch of its 1.5 TB drive. Apart from Capacity and faster spindle speeds, now
‘Green’ being the theme of the year, most HDD manufacturers are focusing on
making environment friendly and energy efficient drives. Western Digital upped
the ante on being ‘Green’ with its Caviar series drives. We received hard drives
of 1TB or greater capacity from all these three manufacturers, and here is their
comparative review.

Seagate Barracuda 7200.11:1.5TB
If a 1TB hard-drive is insufficient for you and you don’t have space to add
another drive, you needn’t worry as Seagate has introduced a 1.5TB HDD, which
will provide you massive storage capacity within the same form-factor. To
achieve the capacity of 1.5 TB, Seagate didn’t cramm in any additional disk
platter, rather increased the disk storage density to about 375GB, so that the
hard-drive’s thickness doesn’t change. With the launch of this Barracuda drive,
Seagate marks the single largest capacity jump in the history of hard-drives, an
increase of 500GB from the previous highest capacity of 1TB.


Price: Rs. 8,250 (Warranty 5 yrs.)
Meant For: Desktop and High-end PCs
Key Specs: 1.5 TB storage capacity, 32 MB buffer, 7200 RPM, PMR
Pros: Massive capacity, eco-friendly
Cons: None
Contact: Fortune Marketing, Delhi
Tel: 26414468,

SMS Buy 130270 to 56677

As the name suggests, the drive has a spindle speed of 7200 RPM, and it uses
Perpendicular Magnetic Recording (PMR) technique, wherein the data bits are
arranged perpendicular to the disk’s platter, as against the lateral alignment
of bits in legacy drives. Thus, Barracuda raised the bar on capacity front. As a
result of higher areal density of the platters, the drive’s performance has
increased, and can provide a sustained data rate of upto 120MB/s. The drive is
eco-friendly as it meets the RoHS requirements and also consumes lesser power;
when at idle mode it consumes 8W, and when compared to other Seagate drives, is
lower. At this price and such a huge capacity, the drive is an ideal choice for
Home Theater systems and high-end gaming machines where space is a constraint
and capacity demand is always high.

Hitachi Deskstar E7K1000:1TB
This 1TB drive is meant for enterprises having features for business critical
storage systems. The drive embodies Rotational Vibration Safeguard (RVS)
technology that helps to maintain drive performance even in high-vibration
environments. Also for such critical business functioning, the hard drive
failure could be a potential threat; E7K1000 has a targeted 1.2
million hours Mean Time Between Failure rating that results in robust


Price: Rs. 14,000 (Warranty 5 yrs.)
Meant For: Data centers and nearline storage
Key Specs: 1TB storage capacity, HiVERT and RVS technology, 32 MB
cache, 7200 RPM
Pros: Reliability, power efficiency
Cons: None
Contact: Cyberstar Infocom, Bangalore
Mob: 9972580114
SMS Buy 130271 to 56677

Like Seagate’s 1.5TB drive, this one also has 32MB cache, 3Gb/s SATA
interface, and 7200 RPM spindle speed. Besides performance, the drive is energy
efficient too because of advanced power management and HiVERT technologies at
its bay. It consumes just 5.2W of power when it’s at idle mode.

Despite beingh priced highest among all the drives, this being an
enterprise-class is is best suited for archival solutions in nearline storage
and in multi-disk environment.

WD Caviar Green: 1TB
Western Digital went Eco-friendly by launching a 1 TB hard drive that’s a miser
when it comes to power consumption. As the capacity of a drive increases, the
prower required to run such a drive also increases, but contrary to that, this
Caviar Green 1TB drive just sips on power when its power consumption is compared
to the other two drives above.

It has a 32MB buffer memory which ensures accesses to the drive are reduced
thus increasing performance. Caviar Green has a sub-7200 RPM spindle speed,
unlike the other two, because it uses IntelliSeek technology that calculates
optimum seek speeds to lower the power consumption as well as noise and


Price: Rs. 10,950 (Warranty 5 yrs.)
Meant For: Desktop and external storage
Key Specs: 1 TB storage capacity, 32 MB buffer, IntelliSeek
Pros: loewer power consumption, quiter operation
Cons: sub-7200 RPM
Contact:Western Digital, Mumbai
Tel: 9321029204

SMS Buy 130272 to 56677

This is the reason, at idle mode, it consumes a meager 2.8W of power while
during read/write operation, it goes up to 5.4W which is nearly similar to
Hitachi’s power consumption of 5.2W in idle mode. The drive is quieter in
operation and lower on power consumption. It can be used for secondary desktop
storage or as a home file server, where performance can be traded up power

Performance Results
We tested the drives on an Intel Quad Core based machine with 2GB RAM. Hitachi
E7K1000 which is meant for nearline storage solutions, scored the highest in
almost every test. It was beaten just by a fraction in average transfer rate by
Seagate’s Barracuda 1.5TB drive, which can be attributed to the higher areal
density per disk of the drive, which results in its enhanced data transfer rate.
While WD’s Green drive operates at sub-7200 RPM speed, its performance matched
that of Seagate 1.5TB drive as it scored higher in the Business Disk Winmark
test. Hitachi was the leader with 88.7 MB/sec in High-end Disk Winmark test,
which checks the drives throughput for high-end applications.

Bottomline: The Seagate 1.5TB drive is ideal for those
who do not want to increase their storage capacity by increasing their
bay-counts. Hitachi E7K1000, with its features for robust performance, is ideal
for enterprise usage. While WD Caviar Gr een is for those who can give up a
little bit of performance to save power and also contribute towards environment.

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