Description
Introduction to the Seagate 900GB 10K SAS-12GBPS Hard Drive
The Seagate 900GB 10K SAS-12GBPS Hard Drive is a high-performance internal storage solution designed for enterprise storage systems. It offers a capacity of 900GB for storing large amounts of data, and utilizes a SAS-12GBPS interface for fast data transfer. The 10K RPM spindle speed and 128MB cache ensure quick and efficient data access, while the 512E format optimizes storage capacity. This hard drive is built with reliability and durability in mind, making it a reliable choice for critical business applications.
Benefits of SAS-12GBPS Interface
The SAS-12GBPS (Serial Attached SCSI) interface provides several benefits compared to other storage interfaces:
- High Speed Data Transfer: SAS-12GBPS offers a maximum data transfer rate of 12 Gbps, which allows for fast and efficient data transfer.
- Scalability: SAS-12GBPS supports expandable, point-to-point connections, which makes it easy to add new storage devices as your storage needs grow.
- Improved Reliability: SAS-12GBPS utilizes a dual-ported interface, which helps to ensure data availability even in the event of a single drive failure.
- Better Data Integrity: SAS-12GBPS uses a differential signaling method that helps to reduce the chances of data corruption due to electrical interference.
- Improved Cable Management: SAS-12GBPS utilizes smaller and more flexible cables compared to other storage interfaces, making it easier to manage and route cables in a crowded data center.
Fast Data Transfer with 128MB Cache
The 128MB cache on the Seagate 900GB 10K SAS-12GBPS Hard Drive enhances its performance by acting as a high-speed buffer between the hard drive and the host system. The cache stores frequently accessed data, allowing the hard drive to quickly retrieve it, reducing the time required to access the data. This results in faster data transfer and improved overall system performance.
Additionally, the cache helps to absorb small, random write requests, which can slow down the hard drive. By caching these requests, the hard drive can handle them more efficiently, reducing the amount of time required to complete the request.
512E Format Optimizes Storage Capacity
The Seagate 900GB 10K SAS-12GBPS Hard Drive uses the 512E (512 byte emulation) format, which optimizes storage capacity. The 512E format is designed to work with legacy systems that were originally built for 512-byte sector size hard drives, while still allowing for the use of larger 4K sector size drives.
In traditional 512-byte sector hard drives, the sectors are physically divided into 512-byte units. In contrast, 4K sector hard drives use 4096-byte physical sectors and emulate 512-byte sectors using a technique called 512-byte emulation. The 512E format takes advantage of the larger physical sector size of 4K drives to store more data in each sector, resulting in increased storage capacity and improved data access performance.
In conclusion, the use of the 512E format on the Seagate 900GB 10K SAS-12GBPS Hard Drive allows for increased storage capacity and improved data access performance compared to traditional 512-byte sector hard drives, while still maintaining compatibility with legacy systems.
General Information
- Manufacturer : Seagate Technology
- Manufacturer Part : 1FE201-002
- Manufacturer Website Address : www.seagate.com
- Product Type: Hard Drive With Tray (HDD)
- Sub-Type: SAS-12GBPS
- Product Line : Enterprise Performance 10K HDD
Technical Information
- Storage Capacity: 900 GB
- Form Factor : 2.5 Inch
- Interface : SAS-12Gbits
- Number Of Heads : 4
- Number Of Disks : 2
- Nand Flash Type : EMLC
- Nand Flash Size : 32 GB
- I/O Acceleration And Response Time Optimization : Enabled
- Intelligent Nand Endurance Management : Yes
- AFR : 0.44%
Performance
- Rotational Speed : 10000 RPM
- External Transfer Rate : 1200 MBPS
- Average Latency : 2.9 MS
- Sustained Transfer Rate Outer To Inner Diameter : 241 To 117 MBPS
- Cache : 128 MB
