Several factors affect drive speed on the whole, but generally the higher the rpm, the faster the drive's throughput and similar performance functions will be. The number of revolutions per minute (rpm) that a drive can perform affects throughput. However, there is some overlap between slower SAS drives and faster SATA drives. ( IOPS may also be measured throughput and IOPS results often suggest the same things about a drive.) The throughput of SAS drives is usually higher than that of SATA drives there are simply fewer delays in general. To measure drive speeds, drive throughput is benchmarked, or tested. Throughput is the amount of data that can be moved, processed, or read and written in a certain amount of time. The SATA equivalent is about 10% cheaper at $87ġTB 7200 rpm SAS drive goes for about $100 Power and data fused into one connection.ħ00,000 hours - 1.2M hours at 25 ☌, may fail after long period of use Power and data split into two connections.Ĭan be up to 10m (33ft) long. Narrow, can be up to a meter (roughly 3ft) long. If a Dual Port SAS connection is used then transfer speeds will be 2 x 6Gb/s. Lower MTBF than SAS (700,000 hours to 1.2 million hours of use at 25 ☌), less suited for servers.Įxpensive, less storage capacity, uses more power to operateĭata transfers at the rate of up to 6 Gb/sĭata transfers at the rate of up to 6 Gb/s, but generally faster than SATA. Serial Attached SCSI (pronounced "scuzzy") or Serial Attached Small Computer System Interface.įast data transfer rate, higher MTBF than SATA (1.2 to 1.6 million hours of use at 45 ☌), longer cables, sometimes higher rpm. Serial ATA or Serial Advanced Technology Attachment. Unfortunately one SAS soldier was killed in action.Comparison chart SATA versus Serial Attached SCSI comparison chart At least 25 rebels were killed and 18 captured, including the rebel leader. Operation Barras - the rescue of eleven British soldiers held captive by Sierra Leone's notorious West Side Boys. The SAS attacked eight IRA members who had just bombed an RUC station. The Loughgall Ambush - massacre of the IRA East Tyrone Brigade in 1987. The Pebble Island Raid - Raid during the Falklands War in 1982 on an Argentinian air base. 5 out of six gunmen were killed and 19 hostages were saved. Considered the most famous and successful hostage rescue in the world. Notable SAS operations include: Operation Nimrod - terrorist siege on the Iranian embassy in London, 1980. An SAS training course lasts for 6 months and has only a 1 - 3% pass rate. They are the best because they train to be the best. The SAS is widely regarded as one of the finest and best-trained special forces units in the world, and is the sole creator of special forces, other special organisations base themselves on the SAS, such as the Americans' Navy Seals and the Germans' KSK.Ī small group of these guys could wipe out a medium-sized enemy encampment within 2 minutes and disappear into the night. The operation was hailed as a great success and was to change the way the public viewed the regiment. Of the original 26 hostages, 24 were safe. One hostage was killed by the terrorists, but within minutes the terrorist threat had been eliminated, with five of the six having been killed and one captured. A diversionary attack was staged and other troopers went in through the ground floor. More than thirty troopers entered the building, including some who went in across the now famous balcony filmed live by the BBC. At 19:26 on Monday 5 May, the SAS went in. After six days of unsuccessful negotiations and one hostage's murder, Prime Minister Margaret Thatcher ordered an assault. The SAS have done many things in history, played a massive part in World War 2, the conflict of Ireland and the invasion of Iraq and Afghanistan and many, many other things, but heres an example of the eliteness: On 30 April 1980, six Iranian terrorists took over the Iranian Embassy in Princes Gate, London. The SAS (Special Air Service) is the British Army's counter-terrorist, special force organisation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |