Note:

The maximum data transfer rate in asynchronous mode may be limited by the response time of initiator and the length of SCSI bus length. The maximum data transfer rate in synchronous mode may be limited by the cable length, transmission characteristics of the SCSI bus and the connected SCSI device number.

(5)Continuous block processing

The addressing method of data blocks is logical block address. The initiator can access data by specifying block number in a logically continuous data space without concerning the physical structure of the track or cylinder boundaries.

The continuous processing up to [64K-1] blocks in a command can be achieved, and IDD can perform continuous read/write operation when processing data blocks on several tracks or cylinder.

(6)Programmable multi-segment data buffer

The data buffer is 8M bytes. Data is transferred between SCSI bus and disk media through this data buffer. This feature provides the suitable usage environment for users.

Since the initiator can control the disconnect/reconnect timing on the SCSI bus by specifying the condition of stored data to the data buffer or empty condition of the data buffer, the initiator can perform the effective input/output operations with utilizing high data transfer capability of the SCSI bus regardless of actual data transfer rate of the disk drive.

(7)Cache feature

After executing the READ command, the IDD reads automatically and stores (prefetches) the subsequent data blocks into the data buffer (Read-ahead caching).

The high speed sequential data access can be achieved by transferring the data from the data buffer without reaccessing the disk in case the subsequent command requests the prefetched data blocks.

The write cache feature is supported. When this feature is enabled, the status report is issued without waiting for completion of write processing to disk media, thereby enabling high speed write processing.

IMPORTANT

When Write cache is enabled, you should ensure that the cashed data is surely flushed to the disc media before you turn off the drive's power.

To ensure it, you should issue either the SYNCHRONIZE CASHE command or the STOP UNIT command with specifying “0” to the Immediate bit and then confirm that the command is surely terminated with the GOOD STATUS.

C141-E205

1-3

Page 18 Page 20
Page 19
Image 19
Fujitsu MAU3147NC/NP, MAU3073NC/NP, MAU3036NC/NP manual C141-E205
Page 18 Page 20

MAU3036NC/NP, MAU3147NC/NP, MAU3073NC/NP specifications

The Fujitsu MAU3036NC/NP, MAU3147NC/NP, and MAU3073NC/NP are advanced models designed to offer high performance and reliability in various computing environments. These models are particularly notable for their optimized efficiency and robust feature set, making them suitable for a range of applications from enterprise servers to high-performance computing.

One of the standout features of the MAU series is its reliance on cutting-edge technology that maximizes data handling capabilities. The MAU3036NC/NP boasts a formidable capacity for high-speed data processing, making it ideal for tasks requiring quick data retrieval and storage. With an optimized caching mechanism, this model enhances data throughput and reduces latency, contributing to an overall faster response time in demanding applications.

The MAU3147NC/NP introduces further advancements with its enhanced thermal management system. This ensures that the unit operates at optimal temperatures, reducing the risk of overheating and prolonging the lifespan of the hardware. Additionally, this model implements advanced error-correcting code (ECC) memory, which significantly improves reliability by detecting and correcting internal data corruption, a crucial feature in mission-critical environments.

Meanwhile, the MAU3073NC/NP excels in terms of scalability. Its architecture allows for easy upgrades and expansions, accommodating growing data needs without significant downtime. This flexibility is essential for businesses looking to future-proof their operations and adapt to changing demands seamlessly.

All three models incorporate Fujitsu's innovative energy-efficient technologies, which not only reduce power consumption but also align with global sustainability goals. The intelligent power management systems make these units not only cost-effective but also environmentally friendly, demonstrating Fujitsu's commitment to responsible manufacturing.

Furthermore, robust connectivity options, including multiple interface support, make these models easily integrable into existing IT infrastructures. They are compatible with a variety of operating systems and software, ensuring that users can leverage their full potential regardless of their specific setup.

In summary, the Fujitsu MAU3036NC/NP, MAU3147NC/NP, and MAU3073NC/NP series exemplify the blend of performance, reliability, and efficiency. With features tailored to meet the evolving needs of modern businesses, these models stand out in the competitive landscape of computing solutions, ensuring that users can address both current and future challenges in data management and processing.
Top Page Image Contents