Dual Port SAS (Serial Attached SCSI) technology refers to a data storage interface that provides two independent communication paths (or "ports") between the hard drive and the host system. This allows for data to be transferred in parallel and provides redundancy, as in the event of a failure in one port, the other port can take over to ensure continuous data availability.
In addition to enhancing data reliability, dual port SAS also enables multiple systems to access the same hard drive simultaneously, making it an ideal solution for high-availability storage configurations, such as in data centers or enterprise storage systems.
By providing two independent paths for data transfer, dual port SAS technology helps to increase data availability, improve system reliability and reduce downtime.
Error Correction and ReliabilityError correction and reliability refer to the measures taken to detect and correct data errors in a hard drive, as well as the ability of the hard drive to maintain data integrity over time.
Error correction is the process of detecting and correcting data errors that may occur during data storage or transfer. This is done through the use of error correction codes (ECC) or other similar techniques, which help to ensure that the data stored on the hard drive is accurate and free of errors.
Reliability, on the other hand, refers to the ability of a hard drive to maintain data integrity over time, even in the face of various environmental factors, such as temperature changes, physical shock, and magnetic interference. Reliable hard drives are designed with features such as enhanced shock protection and error correction, as well as robust internal components, to minimize the risk of data loss and ensure long-term data integrity.
Error correction and reliability are important considerations for hard drives that will be used in critical applications, such as in data centers, where data loss or corruption can have significant consequences. Hard drives that are designed with high levels of error correction and reliability are typically more expensive than those that are not, but they can provide peace of mind and ensure the continued availability of important data.
High Data Transfer RateData transfer rate is a measure of the speed at which data is transferred from one place to another. It is commonly measured in bits per second (bps) or bytes per second (Bps).
In the context of hard drives, the data transfer rate refers to the speed at which data can be read from or written to the disk. This rate is influenced by various factors, including the interface used to connect the hard drive to the system, the speed of the hard drive's spinning platters, and the size of the cache buffer.
Higher data transfer rates generally result in improved system performance and faster access to stored data. When evaluating the performance of a hard drive, it's important to consider not only its data transfer rate, but also its other specifications, such as its capacity, spindle speed, and cache size, to get a comprehensive understanding of its overall performance capabilities.
General Information:- Manufacturer : Seagate
- Manufacturer Model : ST4000NM0095
- Product Line : Exos 7E8
- Product Name : Exos 7E8 4TB Hard Drive
BEST-FIT APPLICATIONS :
- Hyperscale Applications
- High-Capacity Raid Storage
- Mainstream Enterprise External Storage Arrays (SaN, NAS, DAS)
- Cloud Data Centers�Replicated Bulk Data Storage
- Enterprise Backup And Restore�D2D, Virtual Tape
- Centralized Surveillance
- Storage Capacity : 4 TB
- Enclosure : Internal
- Interface : SAS-12GBPS
- Bytes Per Sector : 4KN
- Drive Dimensions : 3.5 INCH
- MTBF : 2 Million Hours
- Humidity Sensor : YES
- Super Parity : YES
- Low Halogen : YES
- Powerchoice� Technology : Yes
- Hot-Plug Support : YES
About Refurbished Products
Warranty
ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.
What does ALLHDD.Com warranty cover?
30-days to 3 years warranty:
Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.
What is not covered by our warranty?
The reason why our warranty does not cover any problem caused by the following conditions:
(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;
(b) any misuse outside the instructions in the user manual for any specific product;
(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.
What is the Manufacturer/Brand Warranty?
In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).
For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.
Important notes:
We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.
Individual product warranty mentioned on each item product description page/detail page.
Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.
Delivery
Shipping Options and Estimated Delivery Time
UPS Shipping Options:
FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days
UPS 3 Day Select®
Estimated delivery time: 3 business days
UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM
UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.
UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM
UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.
UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday
FedEx Shipping Options:
FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.
FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)
FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states
FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)
FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states
FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states
Worldwide Shipping Options:
UPS®/FedEx® International Economy
Estimated delivery time: 4-7 business days
UPS®/FedEx® International Priority
Estimated delivery time: 2-4 business days
UPS®/FedEx® Ground Shipping Canada
Estimated delivery time: 5-8 business days
Important notes:
- The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
- We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
- If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
- You can estimate the shipping cost from the products detail page, also available on the checkout page
- The shipping cost depends on box dimensions, weight, and zip/postal code
- To get a FedEx® delivery service you need to mention it on the checkout page notebox.
- For urgent shipments, please contact our customer service.
- Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.
