Adaptec ASR-6805T SAS Raid Controller Card 8 Internal Port PCI-E 2.0 X8

Overview of Adaptec ASR-6805T RAID Controller Card

General Specifications

• Manufacturer: Adaptec
• Part Number: ASR-6805T
• Product Type: RAID Controller Card

Technical Details

Bus and Compatibility

• Bus Compatibility: PCI Express Gen2
• PCI-E Bus Width: x8

Physical Characteristics

• Form Factor: Low-profile MD2

Performance Features

• Data Transfer Rate: 6 GBPS per Port
• Ports: 2 x SFF-8087 GBPS SAS (Serial Attached SCSI) Internal

Cache and RAID Support

Cache Details

• Standard Cache: 512 MB DDR2

RAID Levels Supported

• RAID Levels: 0, 1, 1E, 5, 5EE, 6, 10, 50, 60, JBOD

Backup and Expansion

Data Backup and Recovery

• Backup Type: Battery Backup

Disk Drive and Enclosure Support

• Maximum Number of Direct-attached Disk Drives: 8 (or Up to 256 with Expanders)
• Enclosure Support: GPIO (General Purpose Input/Output, Serial)

Additional Features

• Onboard Speaker: Yes

General Details

• Manufacturer: Adaptec
• Part Number / SKU: ASR-6805T
• Product Type: RAID Controller Card

Technical Specifications

Compatibility and Form Factor

• Bus Interface: PCI-E Gen2
• PCI-E Slot Width: x8
• Form Factor: Low-profile MD2

Performance and Data Management

• Data Transfer Speed: 6 Gbps Per Port
• Internal Ports: 2 x SFF-8087 6 Gbps SAS (Serial Attached SCSI)
• Cache Memory: 512 MB DDR2

RAID and Backup Features

• RAID Support: Yes
• Supported RAID Levels: 0, 1, 1e, 5, 5ee, 6, 10, 50, 60, JBOD
• Data Backup Method: Battery Backup

Drive and Enclosure Support

• Maximum Disk Drives: 8 Direct-attached, or Up to 256 with Expanders
• Enclosure Compatibility: GPIO (General Purpose Input/Output)

Additional Features

• Onboard Speaker: Yes

Interface: PCI-E 2.0 X8

The Adaptec ASR-6805T Raid Controller Card is equipped with the advanced PCI-E 2.0 X8 interface, which is a significant enhancement over its predecessor, the PCI-E 1.0 X8 interface. This improved interface offers users several benefits, making it an essential feature for any user seeking high-performance and reliable RAID storage solutions.

Superior Bandwidth

The PCI-E 2.0 X8 interface provides superior bandwidth capabilities compared to the previous generation. With a transfer rate of up to 5 GT/s per lane, this interface offers a total bandwidth of up to 40 Gbps (gigabits per second) in full-duplex mode. This increased bandwidth allows for faster data transfer between the RAID controller card and the connected storage drives.

For users dealing with large datasets or demanding applications that require rapid data access, the enhanced bandwidth provided by the PCI-E 2.0 X8 interface ensures smooth and efficient operations. Whether you are running data-intensive tasks or handling multiple simultaneous read and write operations, this upgraded interface enables seamless data flow without any bottlenecks.

Scalability and Future-Proofing

The PCI-E 2.0 X8 interface also offers excellent scalability and future-proofing capabilities. The increased number of lanes (8 lanes) compared to the previous generation means that this RAID controller card can support a higher number of devices and provide more extensive connectivity options.

With the growing demand for storage capacity, users can easily expand their storage infrastructure by adding more drives without worrying about limited connectivity options. The PCI-E 2.0 X8 interface ensures that the Adaptec ASR-6805T Raid Controller Card remains compatible with future storage technologies and allows for seamless integration of newer, faster storage devices.

Enhanced Performance and Reduced Latency

The PCI-E 2.0 X8 interface significantly contributes to the enhanced performance and reduced latency of the Adaptec ASR-6805T Raid Controller Card. The increased bandwidth and improved signaling efficiency of this interface result in faster data transfers, reduced system response times, and improved overall system performance.

Users can experience quicker application launch times, reduced file access latency, and improved system responsiveness when utilizing this RAID controller card. Whether you are running resource-intensive applications, virtualized environments, or large-scale database systems, the PCI-E 2.0 X8 interface ensures that your storage solution keeps up with the demanding workload.

Ports: 8 Internal

The Adaptec ASR-6805T Raid Controller Card boasts 8 internal ports, making it an ideal choice for users requiring substantial internal storage connectivity. This feature offers several benefits and is crucial for users seeking optimal storage performance and flexibility.

High Storage Capacity

The 8 internal ports provide users with ample storage capacity options. With each port capable of connecting to a separate storage drive, this RAID controller card supports a significant number of drives within a single system. This high storage capacity is invaluable for users dealing with large amounts of data or running resource-intensive applications that require extensive storage space.

Whether you are building a high-capacity NAS (Network Attached Storage) system, a media server, or a data center environment, the 8 internal ports of the Adaptec ASR-6805T Raid Controller Card ensure that you have enough connectivity options to accommodate your storage needs.

Flexible Drive Configuration

The 8 internal ports also offer users flexibility in configuring their storage drives. With multiple internal ports available, users can configure their drives in various RAID levels, such as RAID 0, RAID 1, RAID 5, RAID 6, or RAID 10. This flexibility allows users to choose the most suitable RAID configuration based on their requirements for performance, data redundancy, and fault tolerance.

Users can create high-performance configurations for applications that demand fast data access or choose redundancy options for critical data protection. The availability of 8 internal ports ensures that users have the necessary connectivity to implement their preferred drive configuration without any limitations.

Efficient Cable Management

The Adaptec ASR-6805T Raid Controller Card's 8 internal ports contribute to efficient cable management within the system. With a sufficient number of ports available, users can organize their cables neatly and minimize clutter within the chassis.

Efficient cable management not only improves the aesthetics of the system but also enhances airflow and cooling. Proper cable routing prevents cables from obstructing airflow and reduces the risk of heat buildup around the storage drives. This promotes better overall system reliability and ensures optimal performance of the storage solution.

Cache: 512MB

The Adaptec ASR-6805T Raid Controller Card is equipped with a generous 512MB cache memory. The cache plays a crucial role in enhancing the performance and efficiency of RAID operations, making it an essential feature for users seeking optimal storage performance.

Faster Data Access

The 512MB cache memory significantly improves data access speeds for frequently accessed files or applications. By temporarily storing frequently accessed data in the cache, the RAID controller can serve subsequent read requests from the cache itself, eliminating the need to retrieve the data from the slower storage drives.

This caching mechanism results in faster data access times, reduced latency, and improved overall system responsiveness. Whether you are running a database server that handles frequent read operations or an application that repeatedly accesses specific files, the 512MB cache ensures that the data is readily available for quick retrieval.

Enhanced Write Performance

The cache memory also contributes to enhanced write performance. By utilizing write-back caching, the RAID controller can quickly acknowledge write requests by storing the data in the cache and then destaging it to the storage drives at a later time.

This write-back caching mechanism allows for faster write speeds as the controller can immediately respond to write requests without waiting for data to be written to the slower storage drives. The 512MB cache enables efficient handling of high-volume write operations, ensuring that data is written swiftly and reducing the risk of bottlenecks in write-intensive environments.

Data Protection and Recovery

The cache memory of the Adaptec ASR-6805T Raid Controller Card also enhances data protection and recovery capabilities. With the inclusion of a battery backup unit (BBU), the controller can preserve cached data in case of power loss or system failure.

In the event of an unexpected power outage, the BBU provides temporary power supply to the cache memory, allowing it to destage any pending data to the storage drives before shutting down. This ensures that no data is lost or corrupted during sudden power disruptions, providing an added layer of protection for critical information.

Improved RAID Rebuild Performance

The 512MB cache memory also contributes to improved RAID rebuild performance. In the event of a drive failure within a RAID array, the controller needs to rebuild the data from the remaining drives onto a replacement drive.

With a larger cache size, the RAID controller can store more data during the rebuild process, minimizing the time required for the rebuild operation. This results in faster recovery times and reduces the vulnerability window where data is at risk.

Optimized Storage Efficiency

The cache memory of the Adaptec ASR-6805T Raid Controller Card optimizes storage efficiency by intelligently managing data access patterns. With advanced algorithms, the controller identifies frequently accessed data and stores it in the cache, while less accessed or cold data is stored on the storage drives.

This intelligent caching mechanism ensures that data is efficiently stored and accessed, maximizing the utilization of storage resources. Users can make the most of their storage drives by prioritizing frequently accessed data in the cache, resulting in improved performance and reduced wear on the drives.