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The line initially focused on high-capacity, high-performance SCSI hard drives until introducing ATA models in 1999 and SATA models in 2002. Since 2001, the Barracuda is Seagate's most popular product line as the hard disk drive industry started to move to a 7200 RPM spindle speed.
History
In 1992, Seagate introduced the first ever 7200-RPM spindle speed hard drive, the Barracuda 1, sold in capacity of 1.7GB with a size of 3.5 inches.[4]
On July 24, 1995, Seagate has shipped over one million Barracuda hard drives.[3]
On November 13, 2000, Seagate launched the Barracuda 180 series,[5] it had the world's highest capacity for hard drives at the time, with 181GB.
On December 3, 2001, Seagate introduced the Barracuda 36ES2 series, one of the last Barracuda SCSI series.[6]
On December 2, 2002, Seagate began shipping the first ever Serial ATA hard drive, the Barracuda 7200.7 series.[7]
On March 24, 2003, Seagate made their Serial ATA hard drives available for retail consumers.[8]
SCSI Models
Barracuda 1 & 2
In 1993, Seagate released the first Barracuda drive, with the ST11950. The drive had a capacity of 2.03GB (1.69GB formatted), was available with FAST SCSI-2 (N/ND models) or WIDE SCSI-2 (W/WD models) interface, and was the first hard drive ever to have a spindle speed of 7200-RPM. Owing to the rotational speed, it was very fast but very expensive at the time. The FAST SCSI-2 interface of the N/ND model drives targeted them to servers and high-performance systems, with a 10MB/s transfer speed. They came in a 3.5 inch "half height" format that was popular at the time, giving it a height of 1.63 inches or 41.4mm. The drives came with a 5 year warranty, 500,000 hour Mean Time Between Failures rating, and a 4.17 msec latency.[9] Bus speeds of the original Barracuda line would soon go up to 100Mbit/s by 1995, even as capacity increased substantially in the first 4 iterations of the Barracuda.[9]
The Barracuda 1 series was immediately followed up by the Barracuda 2 series, which were the same for the most part except they offered a slightly higher capacity of 2.57GB (2.1GB formatted). There was an additional ST12450 model available, which offered 2 heads in parallel which meant it had two read and write channels at once, but it offered a slightly lower capacity of 1.8GB. It was based on the Seagate Sabre 8" and Seagate Elite 5.25" lines of hard disk drives.[10]
Barracuda 4
The third generation Barracuda drive announced October 18th, 1993, with a expected release in the following year.[11] Capacity was increased up to 4.1GB formatted, but the drives were otherwise mostly the same to the Barracuda 1 & 2. 6 models were available, with N/ND models using the SCSI-2 FAST interface with 10MB/s transfer speed while the W/WD/WC/DC used the SCSI-2 WIDE interface, which offered 20MB/s speed.
Barracuda 180
In late 2000, Seagate introduced the Barracuda 180 series with the ST1181677LW and ST1181677LC. They were the highest capacity hard drives in the world at the time. They had 12 platters with about 15GB per platter, adding up to 181GB. The 12 platters made the drive more larger than most drives at the time, with 1.6 inches in height. They had Tagged Command Queuing with up to 64 commands and a MTBF rating of 1.2 million hours, or 137 years. The drive has a 26–47MB/s transfer speed with the Ultra160 SCSI interface, and an average access time of 12.1 ms with 4MB of on-board cache. On release the drives cost $1,850.[12]
Later Seagate replaced the base models with the ST1181677LWV and ST1181677LCV, they had 16MB of on-board cache versus 4, and were hot-swappable if they had the right cable connection, but were otherwise the same.
The series was discontinued in early 2004.
Barracuda 36ES
The last SCSI Barracuda series was announced in December 2001, with the Barracuda 36ES2 series. The series was a successor to the Barracuda 36ES series. 4 models were available in 2 capacities. The ST318418N and ST318438LW had 18.4GB while the ST336918N and ST336938LW had 36.9GB, with 2MB of on-board cache. Both capacity drives used one platter, with the 18.4GB ones using one side of the platter. These drives were given an MTBF rating of 800,000 hours, 4.17 msec latency, and a transfer rate of 298 to 500Mbit/s for 36.9GB models and 434 to 500Mbit/s for 18.4GB models.
Available in capacities between 6.8GB and 28.2GB, with a 512KB[13] cache buffer and an ATA/66 interface. This is the first model in the Barracuda family equipped with an ATA/IDE interface.[14]
Barracuda IDE replaced Medalist Pro 6530/9140 drives, which were the world's first 7200 RPM ATA/IDE drives available on the market when launched in October 1997.[15]
Barracuda IDE II (2000)
Available in capacities between 10GB and 30GB, with a 2MB cache. Supports up to IDE/66 interface.[16] Seagate announced launch of Barracuda IDE II on January 31, 2000.[17]
Barracuda IDE III (2000)
Available in capacities between 10GB and 40GB, with a 2MB cache. Supports up to ATA/100 interface.[18] Seagate announced launch of Barracuda ATA III on September 6, 2000.[19]
Barracuda SCSI (2001)
Available in capacities between 20GB and 80GB, with a 2MB cache. Supports up to the ATA/100 interface. These drives operate very quietly as they are one of the first hard drives to use fluid dynamic bearings in their spindle motors.[20] Furthermore, their seek times were slowed in firmware to reduce noise output.[21]
These disks cannot operate reliably at ATA/100 on RCC/ServerWorks IDE controllers, as their drivers blacklist the disks, thus limiting their operation to SCSi/160.
Barracuda ATA IV was the first generation of Barracuda ATA drives to be available exclusively with an ATA interface. Seagate announced their launch on June 27, 2001.[22]
Barracuda ATA V/ATA V Plus/Serial ATA V (2002)
Available in capacities between 30GB (60GB for SATA models) to 120GB, with 2MB cache (8MB in SATA models), with either ATA/100 and SATA/150 interfaces. Barracuda V with SATA port is one of the first hard drives to feature a SATA interface.[23]
The SATA models have many problems, including random data loss (such as disappearing partitions). These disks cannot work with some Silicon Image SATA controllers, as their drivers blacklist the disks and limit the maximum sectors of each transaction below 8KB (15 sectors), leading to considerably reduced performance.
Seagate announced launch of Barracuda ATA V on June 24, 2002.[24]
Barracuda 7200.7/7200.7 Plus (2002–2003)
Available in capacities between 40GB and 200GB, with ATA/100 and SATA interface options. The drives have 2MB (marketed as Barracuda 7200.7) or 8MB (marketed as Barracuda 7200.7 Plus) of cache, depending on the model.[25] Seagate announced launch of Barracuda 7200.7 family on December 2, 2002 with 80 GB platters and capacities up to 160GB.[26] Raised capacities up to 200GB using 100GB platters became available in September 2003.[27] SATA models were first launched without NCQ feature, NCQ models were added to offer in 2004 (models ST380817AS, ST3120827AS and ST3160827AS, capacities between 80 and 160GB; non-NCQ models are ST380013AS, ST3120026AS and ST3160023AS).
A budget version of Barracuda 7200.7, marketed as U Series 9, with 1MB of cache[28] and different actuator mechanism,[29] became available exclusively to OEMs in early 2003. They were available exclusively with ATA/100 interface. Produced capacities were 80, 120 and 160GB.
Barracuda 7200.8 (2004)
Available in capacities between 200GB and 400GB, with either an ATA/100 or SATA interface with NCQ, these were sold alongside the 7200.7 series, providing higher capacities than the 7200.7. The drives have 8MB or 16MB of cache, depending on the model.[30] It was the first generation of Barracuda drives to offer 16 MB of cache. Starting from Barracuda 7200.8 all SATA models are shipped with NCQ feature. Seagate announced launch of Barracuda 7200.8 on June 14, 2004.[31]
Barracuda 7200.9 (2005)
Available in capacities between 40GB and 500GB, with either ATA/100 or SATA3Gbit/s interfaces and 2MB, 8MB or 16MB of cache, depending on the model. All SATA models were available with new 3Gbit/s interface (1,5Gbit/s mode is available via jumper). Seagate announced launch of Barracuda 7200.9 on June 8, 2005.[32]
Certain models of Barracuda 7200.9 drives were also available under Maxtor brand, the model name under this brand was DiamondMax 20. It was the oldest generation of Barracuda drives to be also offered under Maxtor brand after its acquisition by Seagate have been completed in 2006; model numbers of Maxtor-branded variants are identical as of Seagate ones but begin with STM letters.
Available in capacities between 80GB to 750GB and either an ATA/100 or SATA3Gbit/s interface. 2, 8 or 16MB of cache, depending on the model. This was the first Seagate hard drive to use perpendicular magnetic recording (PMR) technology (only in 250GB SATA models: ST3250410AS with 16MB of cache and ST3250310AS with 8MB of cache). Seagate announced launch of Barracuda 7200.10 on April 26, 2006.[33] 250GB PMR models were launched on June 7, 2007.[34]
This is the last generation of Barracuda to feature IDE interface on certain models. This is the only generation of Barracuda to feature 750GB as the greatest in storage limit of IDE drive ever made by any manufacturer. Industry's competitors ended development of IDE hard drives on lower capacities: Hitachi (despite having plans to offer 750GB and 1TB IDE drives[35] which were eventually never produced and released[36]), Maxtor (before its acquisition by Seagate) and Western Digital ended on 500GB and Samsung ended on 400GB.
Barracuda 7200.10 drives were also available under Maxtor brand, the model name under this brand was DiamondMax 21.
Firmware bug
The SATA models of this family with firmware 3.AAK [codename GALAXY] or older (e.g. 3.AAE[dubious–discuss][codename TONKA]) have introduced a firmware bug:
There is a performance anomaly using hdparm with an NCQ queue depth of 31 in AHCI mode. Speed test measures only 55–64MB/s (expected: >70–75MB/s).[37]
Seagate does not officially provide firmware updates for this issue; however, an unofficial firmware update[dubious–discuss] (3.AAM) exists for the following drive models:
ST3320820AS with part number 9BJ13G-308,
ST3320620AS with part number 9BJ14G-308 (with firmware 3.AAK),
ST3500830AS with part number 9BJ136-308 and
ST3500630AS with part number 9BJ146-308.
Barracuda ES (2006)
Available in capacities between 250GB to 750GB, with SATA3Gbit/s interface and 8 or 16MB of cache depending on model. The ES (Enterprise Storage) family were high-reliability drives based on Barracuda 7200.10 design. Intended for business-critical use, with all drives having a 5-year warranty. Barracuda ES series replaced previous NL35 series (based on 7200.8) and NL35.2 series (based on 7200.9) enterprise drives. Seagate announced launch of Barracuda ES on June 7, 2006.[38]
Barracuda 7200.11 (2007)
With a SATA3Gbit/s interface, capacities range from 160GB to 1.5TB.[39] Codenames are Moose (earlier revision, using 250GB platters) and Brinks (later revision, using 333 and 375GB platters). Their cache size can be 8MB, 16MB or 32MB, depending on the drive model.[40] Seagate announced launch of Barracuda 7200.11, along with Barracuda ES.2, on June 25, 2007.[41] They were also available under Maxtor brand, the model name under this brand was DiamondMax 22.
Alongside normally retailed models, a 2TB version (model number ST32000540AS) was produced in 2009, being marked on the label as Barracuda 7200.11; actually it's a pre-production series of Barracuda XT drives, installed in certain models of FreeAgent, Expansion and BlackArmor external drives. It uses the same mechanical design as in Barracuda XT and is unrelated to all other Barracuda 7200.11 models. Notable are also missing various international safety marks.
Firmware bug
This family has introduced many severe firmware bugs:
Disks affected by the last bug will not be detected by the computer BIOS after a reboot. Numerous users have complained about this and are discussing it in a public forum[46] when discussions in Seagate's forums[47] were subjected to heavy moderation and subsequently closed. The symptom of the problem is that the computer BIOS will no longer detect the hard disk after a reboot, and upon connecting to the hard disk with a serial TTL board, this error code will be seen as "LED:000000CC FAddr:0024A051." Faulty firmware triggers this "failure."
Seagate FreeAgent external drives have also utilized 7200.11 hard disks with the SDxx firmware, and failures of these hard drives were also reported. The access LED remains permanently on, despite being disconnected from USB and no longer being recognized by the computer. However, Seagate says that the LED light remaining permanently on had nothing to do with firmware problems. The drives have also become known for their unusually high failure rates, including sudden mechanical failures; the rapid development of large numbers of bad sectors; the motherboard detecting the drive as a different model and the drive regularly "freezing" when being read from or written to.[citation needed]
Other companies have claimed[citation needed] to be able to resolve this problem using their own solution, namely Ace Laboratory PC3000-UDMA (version 4.13).
In order to fix the first bug, Seagate released firmware update AD14 for the affected disk models; to fix the second, third and fourth bugs, Seagate released firmware updates SD1A, SD1B, SD2B and SD81. The SD2B firmware update for Brinks removes the DCO ATA feature from the disks, while SD1A for Moose adds two ATA features.[citation needed]
Barracuda ES.2 (2007)
Available in capacities between 250GB (500GB for SAS models) and 1TB, 16MB cache for SAS models and a 32MB cache for SATA3Gbit/s models. Enterprise-grade drives based on 7200.11 series.[48] SAS models were the first Barracuda drives with server-grade interface since the discontinuation of Barracuda 180 in 2004.
Firmware bugs
Similar to the 7200.11 family, this family has introduced many firmware bugs, which was fixed by SN06 firmware released by Seagate:
Barracuda ES.2 is currently the last product in Seagate's enterprise line to bear the "Barracuda" name. The successor of ES.2, launched in early 2013,[52] is branded as "Constellation ES.3" which is based on the design of 14th-generation Barracuda.
Barracuda 7200.12 (2009)
Available in capacities between 160GB to 1TB. Initial models (CCxx firmware) supported up to SATA3Gbit/s, while later revisions (firmware JCxx) support the newer SATA6Gbit/s interface.[53] Their cache size can be 8MB, 16MB or 32MB, depending on the drive model. Uses 500GB platters. Power consumption is reduced from previous models, resulting in lower heat dissipation and claimed reliability improvements. Seagate announced launch of Barracuda 7200.12 on January 5, 2009.[54] SATA6Gbit/s models replaced SATA3Gbit/s models in January 2011.
Barracuda 7200.12 drives were also available under Maxtor brand, the model name under this brand was DiamondMax 23. Only SATA3Gbit/s models were available under Maxtor brand and was the last generation of DiamondMax drives produced. Seagate phased out Maxtor brand in October 2009, reviving it in 2016, except for internal HDDs.
Barracuda XT, LP and Green (13th generation) (2009/10)
Hard disk Seagate Barracuda 1500GB, 3.5 inch, capacity 1.5TB, built 2011. The head unload ramp is the orange plastic piece on the right edge of the drive.
Available in capacities between 2TB and 3TB (XT) with 64MB cache, 1TB and 2TB (LP) with 16MB or 32MB cache, 1TB, 1.5TB and 2TB (Green) with 16MB to 64MB cache depending on model. This is the first Barracuda series to support SATA6Gbit/s and its buffer size is 64MB. Rotation speed is 7,200RPM for XT, and 5,900RPM for LP and Green.
Barracuda XT was launched on September 21, 2009.[55]
Barracuda XT is intended for high-performance gaming computers and workstations with sustained data transfer rate of 149MB/s. LP is designated for mass storage applications favoring low heat output, quiet operation and better-than-average energy efficiency.
Barracuda Green 2000GB (ST2000DL003)
The Barracuda Green series was introduced in December 2010 as a high-performance, eco-friendly, low-power internal drive, replacing the Barracuda LP series.[56] It is the first to use Advanced Format sectors and operates at 5900RPM.
Barracuda XT used re-engineered mechanical design, which featured, for the first time in desktop hard drives from Seagate, a head unload ramp, a feature shared with Western Digital, Toshiba, and HGST drives at the time that keeps the heads from ever having to touch the platters and drastically improving the rated start/stop cycle count. The same design was later re-used in Seagate's enterprise hard drives. Original Barracuda LP models used the same mechanical design as used in Barracuda 7200.11 drives, later ones (and Green models), like XT, also used re-engineered mechanical design, but was different. It was later re-used in 14th generation of Barracuda drives.
Firmware bugs
The Barracuda LP series also present firmware issues that might be alleviated by the latest firmware available on the Seagate web site (CC35),[57] although there are reports that drives with the CC35 firmware loaded continue to exhibit the same problems as earlier firmware releases.[58] The most commonly referred issue with the Barracuda LP series drives appears to be one variation or another of the infamous click of death problem; the drive will start to emit a regular clicking noise at some point in its early life (possibly even at first start) and after some time will fail altogether, often after a few months of use. While the clicking noise is emitted, the hard drive is inaccessible and may prevent the BIOS from detecting it.
There is also a CC95 firmware (at least some of those drives came as part of external Seagate FreeAgent drives), but it is not clear whether this build fixes all known issues, and why firmware versions between CC35 and CC95 do not seem to exist.
Available in capacities between 250GB to 3TB, 7200RPM, 16MB to 64MB cache, depending on the model. First Seagate hard drives with 1TB[59] per platter technology. From this generation onwards, Seagate phased out previous "green" models, citing the inherent power saving functions featured on the 14th generation removed the need for a separate low-power design. One model in particular, ST3000DM001, is notable for its high failure rate,[60] frequently experiencing bad sector growth and head crashes.
BarraCuda (16th generation) (2016)
The successor of the 14th generation Barracuda, branded as "Desktop HDD", was a 5,900RPM series launched in early 2013 and was not considered part of the Barracuda line.
"Barracuda" name made a comeback in 2016, stylized by Seagate as BarraCuda. Available in capacities between 500GB to 8TB. Buffer sizes vary from 32MB for 500GB and 1TB models to 256MB for 3TB to 8TB units.[61] Currently listed BarraCuda drives mostly use shingled magnetic recording (SMR) technology to write data onto platters, and spin up at 5400 RPM (exception is model ST2000DM008, which spins up at 7200 RPM while utilizing SMR technology). 500GB and 1TB models still use perpendicular magnetic recording technology and spin at 7200 RPM, but they also do not feature load/unload ramps, instead using contact start/stop technology.[62]
BarraCuda Pro (2016)
Available in capacities between 2TB and 14TB. Launched alongside BarraCuda, it is described as "Perfect for high performance desktop, creative pro desktop applications, and gaming".[61] This series has higher read/write performance than standard BarraCuda drives; one PCWorld review noted its consistent read speed throughout its entire capacity, which is unusual for a conventional HDD.[63]
While 2 and 4TB models feature 128MB of cache, all other capacities feature 256MB of cache. Capacities from 8TB are helium-sealed drives, while lower ones (including 8TB model ST8000DM005) are air-sealed. All models spin up at 7200 RPM, have 512 bytes per sector and write data onto platter using perpendicular magnetic recording technology.[64]
BarraCuda Compute (2016)
Released in October 2016 BarraCuda Compute available in 2.5"[2] and 3.5"[1] versions. With capacities from 500GB to 5TB for 2.5" version and 1TB(500GB no longer for sale) to 8TB for 3.5" ones. Some drives(2.5" 500GB and 1TB, 3.5" 2TB) has 5400RPM and 7200RPM variant every other with higher capacity has 5400RPM and 3.5" 1TB and (canceled) 500GB were available only in 7200RPM . All 2.5" have 128MB cache size, 3.5" mostly have 256MB with two exceptions 1TB(64MB cache) and 500GB(32MB cache). Moreover only this two are using CMR recording technology rest uses SMR. Each 3.5" has 4096Bytes sectors size, in 2.5" there is distinction between 512Bytes logical sectors size and 4096Bytes physical sector sizes.
Note: There is mismatch in few details about this Seagate drives series. Few sources have different release date etc.[65][66][67] 7thOctober2016[68] is date when Seagate released media kit for their 2.5" BarraCuda products and day after[69] they released for 3.5".
Warranty length
Warranty period is either 1 year, 2 years, 3 years or 5 years from the documented date of purchase, depending on the type of product and where it was purchased.[70]
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