LSI 9480-8i8e brings you an unprecedented high performance storage solution. As an advanced storage controller, megaraid 9480 8i8e combines innovative technology with excellent performance to provide users with a more efficient and reliable storage solution. Using the latest SAS technology, the LSI 9480-8i8e supports eight internal ports and eight external ports, providing more connection options for your storage devices. Whether you are in a personal office or an enterprise data center, the LSI 9480-8i8e can meet your different storage needs. Excellent performance is a highlight of the LSI 9480 8i8e. It uses an advanced RAID engine and supports multiple RAID levels such as RAID 0, RAID 1, RAID 5, and RAID 6 to provide excellent data security and reliability. Whether you're dealing with large data sets or high-speed data transfers, the LSI 9480-8i8e makes it easy. In addition, the LSI 9480-8i8e also supports hot plug and hot backup functions, allowing you to replace the hard disk or backup without downtime, improving the availability and maintainability of the storage system. What's more, its smart power management technology can reduce energy consumption, saving you money while being environmentally friendly. The LSI 9480-8i8e( 05 50031 00 ) also provides comprehensive monitoring and management capabilities that enable real-time monitoring and configuration adjustments through installed software to ensure that your storage system is always in optimal condition. Whether you are looking for a high-performance storage solution for your business or adding more storage options for your personal computer, the lsi raid card 9480-8i8e is the solution for you. It gives you more connection options, superior performance, and reliability, providing the perfect solution for your storage needs. Welcome to consult, STOR TECHNOLOGY LIMITED will give you the ultimate professional pre-sale and after-sales service, to provide you with the original high-performance products and 3 years warranty, for you to eliminate all concerns.

LSI 9361-16i is a RAID controller card produced by Broadcom, which is widely used in enterprise storage systems and servers. Let me briefly introduce some common specifications and advantages of the LSI 9361-16i ( 05-25708-00 ):   Specification: 1. Interface: PCIe 3.0x8 (backward compatible with PCIe 2.0)   2.Ports: 16 internal SAS/SATA ports   3.RAID level support: RAID 0, RAID 1, RAID 10, RAID 5, RAID 50, RAID 6, RAID 60   4. Storage capacity expansion: supports up to 256 physical devices   5. Memory: 1GB 1866 MHz DDR3 SDRAM (upgradeable to 4GB)   Advantages: 1. High performance: Megaraid sas 9361-16i has powerful processing power and data throughput, which can provide excellent performance and is suitable for high load storage environment.   2. Resilience and flexibility: Multiple RAID levels are supported to meet different data protection and performance requirements. It also supports hybrid drive types, including SAS and SATA, providing greater storage flexibility.   3. Data protection and reliability: 9361 16i has a variety of data protection functions, such as RAID level failure protection, hot backup, bad track repair and data encryption, to ensure data security and integrity.   4. Management and monitoring functions: the supporting management software (such as MegaRAID Storage Manager) provides rich monitoring and management functions, including remote management, alarm notification, configuration management, etc., to simplify management and maintenance.   5. Scalability: Support multiple LSI 9361-16i cards to expand through SAS link, providing greater storage capacity and performance.   Please note that specific specifications and benefits may vary from product version to product version and vendor changes. For the most accurate information, it is recommended to contact me directly for the latest and detailed product information, and STOR Technology Limited will provide you with the most detailed service and high-performance original products.

LSI 9440-8i is a RAID controller with the following specifications and advantages:   Specification: 1. Interface: The LSI 9440-8i is equipped with eight internal SATA/SAS ports to support the connection of multiple hard drives and mass storage devices.   2.RAID support: The controller supports multiple RAID levels, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and RAID 50, as well as JBOD (Independent Disk Only) mode. This provides flexible data protection and storage configuration options.   3. Data transfer rate: The megaraid 9440 8i supports SAS data transfer rates up to 12Gb/s, providing fast and stable data transfer.   4. Cache and Processor: The controller is equipped with 2GB DDRIII cache and built-in I/O processor for fast RAID computations and data operations to improve system performance.   5. Backup Battery Module (BBU) support: megaraid sas 9440 8i supports the insertion of a backup battery module to provide the protection of cached data and power failure recovery.   Advantages: 1. High performance and reliability: LSI 9440 8i provides high-speed data transmission and processing capabilities, suitable for application scenarios that require large capacity storage and high performance. The supported RAID level and cache mechanism can provide data redundancy and fault tolerance, and ensure data security and reliability.   2. Data protection and Redundancy: With different RAID levels, LSI 9440-8i allows to configure redundancy and data mirroring to provide fault tolerance and data redundancy to ensure that data is not lost.   3. Flexible storage configuration: Supports a variety of different RAID levels and JBOD modes, enabling users to flexibly configure storage according to their specific needs.   4. Management and monitoring: LSI 9440-8i（05-50008-02）provides management tools and monitoring functions for configuring controllers, monitoring disk status, troubleshoing and performance optimization to improve the efficiency of system management and maintenance.   High performance LSI 9440 8i, professional after-sales service, new original quality assurance, three-year warranty, immediately enjoy the factory price!

Experience unparalleled data storage and management with the cutting-edge MegaRAID SAS 9460-8i and 9460-16i. These innovative RAID controllers offer unrivaled performance, reliability, and flexibility for enterprises of all sizes.   The MegaRAID 9460 16i is designed for large-scale storage systems, providing an impressive 16 internal ports to handle massive amounts of data. With its advanced data protection features like RAID levels 0, 1, 5, 6, 10, 50, and 60, you can rest assured that your valuable information is safeguarded against any unforeseen circumstances.    Equally impressive is the Megaraid 9460 8i, offering 8 internal ports for efficient data management. Its versatile connectivity options ensure seamless integration into any existing infrastructure, making it the ideal choice for businesses seeking a reliable and scalable storage solution.   Both the LSI 9460-8i and LSI 9460-16i are built with high-performance PCIe 3.0 connectivity, ensuring lightning-fast data transfer speeds and reduced latency. Whether you're running complex database applications, hosting virtual machines, or handling intensive workloads, these RAID controllers deliver the exceptional performance needed to support your business operations.   Harness the power of MegaRAID technology, as the 9460-8i and 9460-16i elevate your storage capabilities to new heights. With their comprehensive management tools, intuitive user interface, and extensive compatibility with leading operating systems, managing and monitoring your storage environment has never been easier.   Designed with enterprise-grade components, the MegaRAID SAS 9460-8i and 9460-16i ensure maximum endurance and durability. These reliable controllers have undergone rigorous testing and meet the highest industry standards, guaranteeing long-term reliability and peace of mind.   Don't compromise on your storage infrastructure. Trust the MegaRAID SAS 9460-8i and 9460-16i to provide the perfect balance of performance, scalability, and data protection for your enterprise needs. Upgrade your storage capabilities and stay ahead of the competition with these cutting-edge RAID controllers.   STOR Technology Limited is a cloud storage and cloud computing hardware solution provider with many years of professional experience. We offer a wide range of original new lsi raid cards and lsi hba cards so you can experience high performance products while reducing costs. Of course, we also provide all kinds of server accessories and professional technical consultation. ODM orders are welcome and we are honored to provide you with professional solutions.

In this section, we will take a look at the chips and boards commonly used in various enterprise computer systems.   RAID cards refers to a SAS or SATA controller with RAID function, such as LSI 9560 8i. HBA cards refers to a SAS or SATA controller without RAID function, such as: sas 9300 16i,the controller can be directly welded to the mainboard and connected to the CPU through the PCIE bus. You can also make a PCIE card and insert it into a PCIE slot on the mainboard. PCIE cards come in many forms.   One is standard (full-height full-length, half-height half-length, etc. At present, they are basically half-height and half-length), and the other is non-standard or customized (these cards are in various forms, but still use the PCIE protocol, but the physical interface form changes). One type of non-standard Card, called a Mezzanine Card, is designed to save space in the computer case by having slots that are vertically oriented rather than parallel to the surface of the board, so that the card sits parallel to the motherboard.   The hard disk of an enterprise computer is plugged into a backplane and wired to the SAS HBA/RAID controller. Sometimes you need to connect more hard disks, and the number of direct connection ports of the SAS controller is not enough, so you need to use a SAS Switch (the industry is not called Switch, but SAS Expander) chip to expand the number of interfaces.   This chip can be placed on the backplane, and the hard drive signal is first connected to the SAS Expander, and then connected to the SAS controller from its uplink port. If the backplane space is relatively small, can not accommodate the SAS Expander chip location, in order to consider flexibility, Microsemi company introduced SAS Expander card, which is a PCIE card, but only use the PCIE interface to power, do not transmit signals. The SAS interface is exported from the SAS Expander to the connector.   In this way, the upstream signals of the backplane and SAS controller are connected to the SAS Expander card using cables. In this way, a SAS switching network is formed, and the SAS controller can identify all hard disks.   There is another chip often used in some enterprise computers: the PCIE Switch. As the number of PCIE channels provided by the CPU is not enough, just like SAS, a Switch chip is needed to expand the number of PCIE channels. Enterprise computer systems also contain some chips, such as BMC, sound processing chip/card, GPU/ graphics card, mechanical hard disk controller chip, solid state disk controller chip and so on.

The enterprise computer system market is a relatively open, standardized/compatible, full of competition market. In this market ecosystem, there are mainly the following roles: semiconductor manufacturing factories, semiconductor circuit designers, board design manufacturers, complete machine designers, complete machine manufacturers, complete machine manufacturing designers, software developers, system integrators, end users.   The operation process of this ecology from upstream to downstream is: the semiconductor circuit designer designs the corresponding chip, and sends it to the semiconductor manufacturing factory in the form of a layout to wait for manufacturing. After the chip leaves the factory, the design and manufacturer of the board (various HBA cards, Raid cards, motherboards, etc.) purchases the chip, sends it to the board manufacturing factory for processing and welding, and leaves the factory.   Machine design Manufacturers purchase board, chassis, power supply and other assembly into the machine factory. Large and small system integrators directly face the end users, design IT system architecture and schemes for users, purchase various products, software + hardware from corresponding manufacturers, and then provide users with pre-sale evaluation and consultation, sale process management, installation, deployment, and after-sales maintenance services.   Get the most out of your computing system with expert advice and after-sales support from our team of experts at STOR. Trust us to deliver best-in-class server components and software to meet your performance and budget requirements.   With the improvement of CPU integration, there are basically only two main chips on the motherboard: CPU(For servers) and I/O bridge.

The operating system kernel needs to provide a complete I/O control process and prepare a large number of various data structures to manage the flow of I/O between various modules.   These modules include: VFS directory layer, Page Cache layer, file system layer, network processing layer, common block layer, I/O scheduler layer, block device driver layer, external I/O channel controller driver layer. These layers together form a large and complex I/O protocol stack.   I'm sure you already have an idea of how programs use I/O devices. The most common I/O devices fall into three categories: network card devices, storage devices（st2400mm0129）， and interactive devices such as keyboards/mice. These devices can be connected to the system through PCIE or USB ports. The question is, how is the data sent to them generated and sent all the way to the device driver and to the device?   If a user mode program wants to read the contents of sector 0 of a hard disk fan, it cannot directly manipulate the hard disk, because it cannot call the functions provided by the hard disk device driver at all, it can only delegate the kernel code to do this through the read system call.   In the parameters of the read system call, the user side program must at least tell the kernel: which device to read, which bytes of the device to read from, where to put the data read back into memory, and other parameters (such as what way to read when reading, etc.). The same goes for reading files. 

The LSI 9380-8e has been introduced in previous articles. Now let me introduce the LSI 9380-4i4e 05-25190-02. This is a raid controller by Broadcom with the following specifications and benefits:   Specification: 1. Interface: The megaraid sas 9380 4i4e is equipped with four internal SATA/SAS ports and four external SATA/SAS ports, enabling it to connect to both internal and external storage devices. 2.RAID support: The controller supports multiple RAID levels, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and RAID 50, as well as JBOD (Independent Disk Only) mode. 3. Data transfer rate: support 12Gb/s SAS data transfer rate, high bandwidth, can provide faster data transfer speed. 4. Drive compatibility: Compatible with SATA and SAS hard drives, providing flexibility and scalability. 5. Caching: Provides caching mechanisms to improve performance and support hardware RAID computations to reduce the burden on the host processor.   Advantages: 1. High performance: LSI 9380-4i4e LSI00439 adopts advanced technology and high transmission rate, which can provide excellent storage performance and is suitable for applications requiring high-speed data transmission. 2. Data protection: Support multiple RAID levels, including redundancy and data mirroring, to provide data redundancy and fault tolerance to ensure data security and reliability. 3. Scalability: Four internal and four external ports provide high drive connectivity, making it suitable for scenarios where multiple storage devices need to be connected and flexible storage expansion. 4. Management and monitoring: LSI 9380-4i4e is equipped with management tools to simplify the configuration, monitoring and troubleshooing process and improve the efficiency of system management.   The lsi 9380-4i4e from STOR Technology Limited is an original high-performance array card with a 3-year warranty. And our team has more than 10 years of professional experience, provide perfect pre-sales and after-sales, so that you experience the most extreme service at the most affordable price.

The LSI 9560-8i and LSI 9560-16i are two RAID controllers made by Broadcom.Here are their specifications and advantages:   Specification: Number of ports: The MegaRAID 9560-8i has 8 internal SAS/SATA ports, while the MegaRAID 9560-16i has 16 internal SAS/SATA ports. These ports can be used to connect hard drives and build RAID arrays.   RAID level support: Both controllers support multiple RAID levels, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and RAID 50. Therefore, you can choose the best RAID level for your needs to balance data protection and performance.   Interface: They all adopt PCIe 3.0x8 interface, which provides sufficient bandwidth and fast data transfer speed.   Cache: MegaRAID 9560-8i and 9560-16i both have cache function, which can speed up the access to data and improve system performance.   Data protection: They have features such as global hotplugging, Battery Backup Protection (BBU), and RAID Drive Virtualization (RDM) to ensure data integrity and security.   Management software: The accompanying MegaRAID Storage Manager software provides an intuitive graphical user interface that allows users to easily configure, manage and monitor storage.   Advantages: Flexibility: Depending on the storage requirements, the number of ports of MegaRAID 9560-8i 05-50077-01 and 9560-16i 05-50077-00 provides different options, users can choose the appropriate version to meet the storage requirements according to the actual situation.   High reliability: Using high-quality components and advanced RAID technology, both controllers provide strong data protection and fault tolerance to reduce storage system risk.   High performance: The PCIe interface, cache and fast data transfer speed enable the MegaRAID 9560-8i and 9560-16i to handle large amounts of data and provide excellent storage performance.   Management and monitoring: The MegaRAID Storage Manager software makes it easy to configure, manage and monitor RAID arrays, enhancing the controllability and manageability of the storage system.   In summary, both MegaRAID 9560-8i and 9560-16i are powerful RAID controllers with high reliability, flexibility and high performance, which are suitable for building enterprise storage solutions. Contact us, to provide you with the best choice and solution, the factory price and three years warranty, is your most secure choice.

The unmatched performance of the Megaraid 9380 8E is one of its most striking features. The controller can handle diverse data workloads in an efficient and stable manner. With its excellent data transfer speed and excellent processing power, the LSI 9380-8E LSI00438 can easily cope with the high-intensity work requirements such as large-scale data processing, virtualization and cloud computing. Here are the specifications and benefits of the LSI 9380-8e MegaRAID array card: Specification: Number of ports: The LSI 9380-8e has eight external SAS (Serial connection SCSI) ports for connecting to external hard drives. This makes it suitable for scenarios where external storage needs to be connected, such as storage extensions or external storage cabinets. RAID level support: The array card supports multiple RAID levels including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and RAID 50. This allows you to choose the appropriate RAID configuration for your needs to provide data protection and performance optimization. Interface: LSI 9380-8e uses PCIe 3.0x8 interface to support high performance storage through high-speed data transfer and bandwidth. Caching: It comes with a 512MB or 1GB DDR3 cache, which provides fast data caching and read/write speeds to improve storage performance and response time. Data Protection: The LSI 9380-8e features optional SAS RAID-on-Chip (ROC) technology and Battery Backup Protection (BBU) to provide advanced data protection and fault tolerance to prevent data loss. Management software: Paired with LSI MegaRAID Storage Manager software, it provides an intuitive user interface, making it easier and more convenient to configure, manage and monitor the array. Advantages: High performance: Megaraid sas 9380-8e is equipped with advanced RAID technology and high-speed data transmission, which can provide excellent storage performance to meet enterprise storage requirements. Data protection and fault tolerance: Support for multiple RAID levels and optional SAS ROC technology and BBU capabilities provides advanced data protection and fault tolerance to reduce the risk of data loss. Flexibility and extensibility: Eight external SAS ports are suitable for connecting external hard drives to meet the requirements of storage expansion or external storage cabinets. Simple management: Equipped with intuitive MegaRAID Storage Manager software, it makes the configuration, management and monitoring of array operations easier and easier to operate. To ensure customer satisfaction and trust, STOR provides the LSI 9380-8E with a three-year warranty, providing comprehensive protection for your investment. No matter what part of the data storage field, this controller can operate robustly, giving you excellent data reliability and security.

Above we introduced the two important components of the hard disk. The article mentioned the ST2400MM0129 supplied by STOR Technology Limited, and now we will talk about it in detail. The ST2400MM0129 is a SAS hard drive model of the Exos 10E2400 series manufactured by Seagate. The following are the specific specifications and advantages of the hard disk: 1. Capacity: ST2400MM0129 has a storage capacity of 2.4TB, which can accommodate a large amount of data. 2. Interface: It uses SAS interface to provide reliable connection for high performance storage environment. 3. Speed: The speed of the hard disk is 10,000 RPM, which provides faster data access speed and is suitable for applications with high performance requirements. 4. Cache: With 256MB cache, it can speed up data read and write operations and improve system response speed. 5. Reliability: Seagate's reliability technology, including sensors, RAID recovery capabilities, and advanced error correction, protects data from corruption or loss. 6. High performance: HDD ST2400MM0129 is designed for enterprise-class storage environment, providing excellent read and write performance, suitable for data centers, servers and large-scale applications. 7. Durability: The hard drive has high vibration resistance and reliability to perform well in continuous operation and challenging environments. In general, Seagate ST2400MM0129 is a SAS hard disk with large capacity, fast speed, stable performance and high reliability, suitable for enterpriselevel environments with high requirements for data storage and processing. STOR not only provides high-performance hard drives, but also the original new Raid Card,HBA Card,Fiber Card,Network Card, etc. We will provide you with professional pre-sales and after-sales service, welcome to consult

STOR Technology Limited provides server accessories in addition to array cards, expansion cards, fiber optic cards, etc., as well as high performance enterprise hard disks. Such as:Seagate ST1000NM001A, Seagate ST2400MM0129.Let us briefly introduce the two important components of the hard disk drives: platters and magnetic heads.   Disk The substrate of the disc is made of metal or glass material, and in order to achieve high density and high stability, the surface of the substrate is required to be smooth and flat, without any defects. The magnetic powder is then sputtered onto the substrate surface and finally coated with a protective lubrication layer. Two technologies should be applied here, one is to create an extremely fine magnetic powder without impurities, and the other is to sputter the magnetic powder evenly.   The coarse density of each side of the disc is 32901120000b, which can be seen that its density is quite high, so the disc can not have any pollution, and the whole manufacturing must be carried out in the clean room of Class 100, which is also the reason why the hard disk needs to be disassembled and repaired in the clean room. Because the magnetic head uses the air flow to float on the platter and does not touch the platter, it can move back and forth between the rails at high speed, but if the magnetic head distance from the platter is too high to read the signal will be too weak, too low and will grind to the surface of the platter, so the surface of the platter must be quite smooth and flat, any foreign matter and dust will make the magnetic head friction to the magnetic surface and cause permanent damage to the data.   Magnetic head The storage principle of hard disk is to store data using its control circuit through the hard disk Read Write Head (Read Write Head) to change the N and S polarity of the extremely fine magnetic particle clusters on the surface of the disk, so these disks are very important.   In order to store more data, the magnetic particle clusters must be sputtered within the range that the magnetic head can locate, and the smaller the magnetic particles are made, the better. After sputtering, the magnetic particle density on the disk surface is quite high, and the hard disk read and write head needs to float on the disk surface in order to move back and forth on the disk surface at high speed to read data, but can not contact, contact will cause scratches. If the magnetic head is too high, the signal read will be very weak and cannot meet the requirements of high stability, so it should be as low as possible, and its Flying Height is very small (can be likened to requiring a Boeing 747 passenger plane, its flight height must be maintained at a distance of 1 meter and not crash). This technique is achieved entirely by generating airflow over the disc as the disc rotates, using aerodynamics to levitate the head above the disc.   Early hard drives had to run a program called Parking every time they were turned off. Its function was to return the magnetic head to an area of the innermost ring of the disk that was free of magnetic particles, called the start-stop zone. When a hard disk is not working, the magnetic head stays in the start-stop zone. When data needs to be read or written from the hard disk, the hard disk spins first. When the rotation speed reaches the rated speed, the magnetic head will be lifted by the airflow generated by the rotation of the platter, and the magnetic head will move to the area where the data is stored in the platter. The airflow generated by the disc's rotation is strong enough to hold up the magnetic head and maintain a tiny distance from the disc surface. The smaller the distance, the higher the sensitivity of the magnetic head to read and write data, and of course the higher the requirements for the components of the hard disk.   The early design of the disk drive can keep the head flying a few micrometers above the disk surface, and some later designs reduce the height of the head flying on the disk surface to about 0.1 to 0.5μm, and now the level has reached 0.005 to 0.01μm, which is only one thousandth of the diameter of a human hair. The airflow can both pull the magnetic head out of the open disk surface and keep it close enough to the disk surface to undate very closely with the disk surface, so that the flight of the magnetic head is strictly controlled. The magnetic head must fly above the disk without touching the disk, a distance that avoids chafing the magnetic coating and, more importantly, damaging the magnetic head. However, the magnetic head can not be too far away from the disk, otherwise it can not make the disk to achieve a strong enough magnetization, it is difficult to read the data on the disk.   Tip: The flying height of the magnetic head of the hard disk drive is low and the speed is fast. Once a small dust enters the hard disk sealing cavity or the magnetic head collides with the disk body, it may cause data loss to form a bad block, and even cause damage to the magnetic head and disk body. Therefore, the sealing of the hard disk system must be reliable, and the hard disk sealing chamber must not be opened under non-professional conditions, otherwise the dust will accelerate the damage of the hard disk. In addition, the seek servo motor of the hard drive head is shown to use a voice coil type rotary or linear motion stepper motor, which accurately tracks the track of the disk under the adjustment of the servo tracking, so the hard disk does not have impact collision when working, and should be carefully handled when moving.