RAID

RAID Overview

The 650 is unique in that it is the only integrated POS computer to currently implement an integrated RAID function. The 650 uses the Intel Matrix Storage Technology to allow the two internal 2.5 inch hard drives to be configured as a RAID array. The 650 supports RAID 0, RAID 1 and Intel Matrix RAID which combines the benefits of two RAID volumes in a single RAID array.

If you are not currently familiar with RAID arrays Intel has a good white paper on the subject at: http://www.intel.com/design/chipsets/applnots/310855.htm

There are a number of benefits to using the RAID feature.

Protection is one benefit. When using a RAID 1 array, data is protected by mirroring. The primary RAID volume is duplicated automatically on the second drive, a mirror image of the first. If one of the two hard drives fails the system will still keep working. The bad hard drive can be replaced while the system is running. This is called hot swapping or hot plug. The new drive will automatically be updated to a mirror image of the working drive.

Performance is another feature RAID can provide. When configured as a RAID 0 array the two drives in the RAID array are striped. With striping, data is split between two drives. This allows the 650 to read the data more than twice as fast as with a single drive. The performance can be more than twice as fast because the Intel RAID driver also uses the AHCI NCQ function built into the SATA drives.

Protection and Performance can be mixed using an Intel Matrix RAID configuration, whereby a RAID 1 and RAID 0 can be setup on the same RAID array. Mission critical data can be stored in the RAID 1 volume and data requiring performance can be stored on the RAID 0 volume.

AHCI

AHCI stands for Advanced Host Controller Interface and is a feature of the SATA interface that allows for Hot Swapping and Native Command Queuing (NCQ). NCQ allows multiple commands to be sent to the hard drive at one time. The drive decides the best way to order the commands for the best performance from the drive. AHCI is enabled when RAID mode is selected in the BIOS setup.

To use AHCI drivers from Intel the BIOS must be set to RAID, not AHCI. The AHCI mode uses the same drivers as used for RAID. Follow the instruction for install the RAID drivers but set the HDD as a Non-RAID Disk in the RAID BIOS setup.

650 System Manual (Draft)

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Version 0.4 August 20, 2008

 

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Intel J2 650 system manual Raid, RAID Overview

J2 650 specifications

The Intel J2 650 is a microprocessor that has garnered attention for its robust performance and advanced features, tailored for a range of applications from embedded systems to high-performance computing tasks. As a member of Intel’s J-series, the J2 650 is designed to balance power efficiency with computational capabilities, making it a versatile choice for developers and manufacturers.

One of the standout characteristics of the Intel J2 650 is its architecture, built on Intel’s established x86 core. This architecture allows the processor to efficiently handle a multitude of tasks, thanks to its multi-core design, which enhances parallel processing capabilities. Typically, the configuration includes multiple cores that can operate at varying frequencies, optimizing performance based on workload demands.

The J2 650 is equipped with Intel's Hyper-Threading technology, enabling each core to handle two threads simultaneously. This feature significantly improves multitasking efficiency and is particularly beneficial for applications requiring substantial data processing. Whether in a data-driven application or an intensive gaming scenario, the J2 650 provides a responsive experience.

In terms of power management, the Intel J2 650 is designed with energy efficiency in mind. It features advanced power-saving technologies that allow it to scale down power consumption when idle or under light loads. This is critical for embedded applications, where preserving battery life can be a significant factor. The processor also supports Intel Turbo Boost Technology, which allows it to dynamically increase its clock speed when more processing power is needed, ensuring adaptability under varying workload conditions.

The J2 650 supports a wide range of connectivity options, including integrated graphics capabilities, which provide a solid visual performance without the need for additional hardware. It is compatible with various memory standards, allowing for superior data throughput and increased bandwidth essential for demanding applications.

In addition to its technical specifications, the Intel J2 650 is backed by comprehensive software support, including various development tools and SDKs. This allows developers to optimize their applications and make full use of the processor’s capabilities. The combination of performance, efficiency, and flexibility positions the Intel J2 650 as a formidable contender in the realm of microprocessors, suitable for a diverse array of industries and use cases.