Computer Storage, Part 2 Codexery

Seagate Barracuda

Seagate's pioneering 7200 RPM hard drive line since 1993.

Seagate Barracuda

The Seagate Barracuda line of hard disk drives and later solid-state drives debuted in 1993. It began as a series of high-capacity, high-performance SCSI drives, then added ATA models in 1999 and SATA models in 2002. By 2001, the Barracuda had become Seagate’s most popular product line, coinciding with the industry’s shift to 7200 RPM spindle speeds.

In 1992, Seagate released the first 7200 RPM hard drive, the Barracuda 1, with a 1.7 GB capacity and a 3.5-inch size. This early model was 1.6 inches (42 mm) thick, notably thicker than the modern 1-inch (26 mm) standard. The Barracuda 2LP, introduced in early 1994, was the first 7200 RPM drive to use the slimmer 26 mm form factor. It held 2 GB across six platters, a large capacity for its time. On July 24, 1995, Seagate shipped its one millionth Barracuda drive. On November 13, 2000, the Barracuda 180 series launched with a world-record 181 GB capacity, using 12 platters and the thicker 42 mm half-height format—the last Barracuda to do so. On December 3, 2001, Seagate introduced the Barracuda 36ES2 series, one of the final SCSI Barracuda lines. On December 2, 2002, the first Serial ATA hard drive, the Barracuda 7200.7 series, began shipping; retail availability followed on March 24, 2003.

The first Barracuda drive, the ST11950, arrived in 1993 with a 2.03 GB capacity (1.69 GB formatted) and FAST SCSI-2 or WIDE SCSI-2 interfaces. Its 7200 RPM spindle made it fast but expensive. The FAST SCSI-2 models offered 10 MB/s transfer speeds and targeted servers and high-performance systems. They came in a 3.5-inch half-height format (1.63 inches or 41.4 mm tall) with a 5-year warranty, 500,000-hour MTBF, and 4.17 ms latency. Bus speeds reached 100 Mbit/s by 1995. The Barracuda 2 series followed, offering a slightly higher capacity of 2.57 GB (2.1 GB formatted), plus an ST12450 model with two parallel heads and a 1.8 GB capacity. These drives were based on Seagate’s Sabre 8-inch and Elite 5.25-inch lines.

The third generation, announced October 18, 1993, for release the following year, increased formatted capacity to 4.1 GB. Six models were available: N/ND versions used SCSI-2 FAST (10 MB/s), while W/WD/WC/DC used SCSI-2 WIDE (20 MB/s). In late 2000, the Barracuda 180 series (ST1181677LW and ST1181677LC) became the world’s highest-capacity drives at 181 GB, using 12 platters of about 15 GB each.

Quick Facts

Weight
3.5": ~600g or ~400g(slim 20mm models) / 2.5": ~190g or ~90g
Dimensions
3.5": 26.11 x 101.85 x 146.99 mm or 19.99/20.2 x 101.85 x 146.99 / 2.5": 15 x 69.85 x 100.35 mm or 7 x 69.85 x 100.35 mm
Use
Computers, Notebooks, Consoles, Set-top boxes, etc.
Owner
Seagate Technology
Capacity
1.7 GB – 24 TB(helium filled models)
Released
Late 1992

Facts from the source article.

Lore & Background

The Barracuda line began with the Barracuda 1 in 1993, the first hard drive ever to have a spindle speed of 7200 RPM. It was available in capacities of 2.03 GB (1.69 GB formatted) with FAST SCSI-2 or WIDE SCSI-2 interfaces, and came in a 3.5-inch half-height format 1.63 inches thick. The Barracuda 2LP, released in early 1994, was the first 7200 RPM drive to use the slimmer 26 mm 3.5-inch form factor, containing 6 platters storing 2 GB total. On July 24, 1995, Seagate shipped its one millionth Barracuda hard drive.

In late 2000, Seagate introduced the Barracuda 180 series, the world's highest capacity hard drives at the time with 181 GB, using 12 platters and a 1.6-inch height. This was the last series to use the thicker 42 mm half-height Z height. The Barracuda 36ES2 series, announced December 3, 2001, was one of the last Barracuda SCSI series. On December 2, 2002, Seagate began shipping the first ever Serial ATA hard drive, the Barracuda 7200.7 series, with retail availability on March 24, 2003.

ATA models began with the Barracuda ATA in 1999, available in capacities between 6.8 GB and 28.2 GB with an ATA/66 interface. Subsequent ATA generations included the Barracuda ATA II (2000), ATA III (2000), ATA IV (2001), and ATA V (2002). The Barracuda ATA IV was the first generation to be available exclusively with fluid dynamic bearings in spindle motors, making them significantly quieter. The Barracuda 7200.7 family launched in December 2002 with 80 GB platters and capacities up to 160 GB, later raised to 200 GB using 100 GB platters in September 2003.

Reader's Guide

The Seagate Barracuda series is notable for introducing the first 7200 RPM hard drive to the market, setting a new standard for performance in the industry. Its evolution from SCSI to ATA and then to SATA interfaces reflects the broader transition of storage technology during the 1990s and early 2000s. The Barracuda 180 series held the title of the world's highest capacity hard drive at its launch, demonstrating Seagate's ability to push storage density limits. The line's adoption of fluid dynamic bearings in the Barracuda ATA IV marked a significant advancement in reducing noise and vibration. The Barracuda 7200.7 series was the first to ship with a Serial ATA interface, helping to popularize the new standard. However, some models had noted issues: the Barracuda ATA V SATA models experienced random data loss and compatibility problems with certain controllers, and the Barracuda ATA IV could not operate reliably at ATA/100 on RCC/ServerWorks IDE controllers. Despite these issues, the Barracuda line became Seagate's most popular product line from 2001 onward, as the industry moved to 7200 RPM spindle speeds.

Did You Know?

Frequently Asked Questions

What is the Seagate Barracuda?

The Seagate Barracuda is a product line of hard disk drives, later extended to solid-state drives, made by Seagate Technology. It debuted in 1993 as a family of high-capacity, high-performance SCSI drives before expanding into ATA (1999) and SATA (2002) formats.

When was the first 7200 RPM hard drive released?

Seagate shipped the Barracuda 1 in 1992, making it the industry's first 7200 RPM hard drive. It held 1.7 GB in a 3.5-inch enclosure that measured 1.6 inches thick, far bulkier than today's 1-inch standard.

Which Barracuda model was the first to use SATA?

The Barracuda 7200.7 series, which began shipping on December 2, 2002, was the line's first SATA hard drive. It followed the earlier introduction of ATA-based Barracuda models in 1999.

How popular did the Barracuda line become?

By 2001 the Barracuda had grown into Seagate's most popular product line, a milestone that coincided with the industry-wide shift to 7200 RPM spindle speeds. The line had already crossed the one-million-unit mark as early as July 24, 1995.

What was the highest-capacity Barracuda drive of its era?

The Barracuda 180 series, released on November 13, 2000, topped out at 181 GB, representing the line's peak capacity at that point. That was a dramatic leap from the original 1.7 GB starting point of the 1992 Barracuda 1.

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