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Fujitsu MAP3147, MAP3367, MAS3735, MAP3735, MAS3367 specifications Reset processing

Models: MAP3735 MAP3147 MAS3367 MAP3367 MAS3735

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Command Processing

1.7.6Reset processing

The INIT can reset the SCSI bus with following.

•RESET condition

•TARGET RESET message

•CLEAR TASK SET message

•ABORT TASK SET message

•ABORT TASK message

The RESET condition resets all the SCSI devices connected on the same SCSI bus. The IDD is initialized to the same state as when its power is switched on by the RESET condition, with the currently executed command as well as all the commands in the queue cleared.

The TARGET RESET message resets only specific SCSI device (TARG) selected by the INIT, and can initialize that TARG to the same state as when its power is switched on. However in a multi- initiator environment, caution concerning clearing of commands issued by other INITs is necessary.

The CLEAR TASK SET message clears all commands that the IDD is executing or queuing. The previously set environment and conditions, such as MODE SELECT parameters, are not changed.

An INIT which wants to clear only specific commands it has issued itself must use an ABORT TASK SET message or an ABORT TASK message. In this case, the INIT generates an ATTENTION condition at the desired point in time if that command is currently being executed on the SCSI bus, then sends the ABORT TASK SET message to the TARG. Also, if there is a disconnect in effect, after the INIT selects the TARG, an ABORT message, in the case of an untagged command, or an ABORT TASK message, in the case of a tagged command, is sent following an IDENTIFY message which specifies the object logical unit, or the INIT waits until a reconnection request occurs, then sends an ABORT TASK SET message or ABORT TASK message. In the case of an ABORT TASK SET message, only the commands issued previously in the logical unit specified at that time by the INIT that issues the ABORT TASK SET message (currently being executed or queuing) are cleared and there is no influence on the other commands.

When an ABORT TASK message is received, only the command issued to the logical unit specified at that time by the INIT which issued the ABORT TASK message is cleared, and there is no influence on the other commands. No status byte or TASK COMPLETE message concerning commands cleared in this processing is reported.

In particular, in the case of clearing of a write operation command for writing to the disk media which is currently being executed, the IDD stops processing of that command as shown in Table 1.6. The case of halting an overlapping command that is currently being executed (see Section 1.7.1) is the same. The INIT must determine the complete completion state and if necessary, must execute data recovery processing.

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Fujitsu MAP3147, MAP3367, MAS3735, MAP3735, MAS3367 specifications Reset processing
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MAP3735, MAP3147, MAS3367, MAP3367, MAS3735 specifications

Fujitsu, a renowned leader in technology and innovation, has developed a variety of reliable hard disk drives (HDDs) that cater to a wide range of data storage needs. Among these, the MAS3735, MAP3367, MAS3367, MAP3147, and MAP3735 series stand out for their advanced features and exceptional performance.

The MAS3735 is a high-capacity enterprise-class drive that boasts a storage capacity of up to 300 GB. Its 10,000 RPM spindle speed ensures rapid data retrieval and efficient performance, making it ideal for data-intensive applications. It utilizes a Serial Attach SCSI (SAS) interface, which allows for improved data transfer rates and increased reliability compared to traditional SATA drives. The drive is designed with advanced technologies such as error recovery and data integrity features, ensuring the safety and security of critical data.

Similarly, the MAP3367 and MAS3367 models are geared towards both enterprise and mid-range server environments, providing a storage capacity of up to 300 GB as well. These drives also operate at a spindle speed of 15,000 RPM, offering swift access times that enhance overall system performance. The MAP3367 employs the Ultra 320 SCSI interface, allowing for significant bandwidth and ensuring data is transmitted efficiently.

On the other hand, both MAP3147 and MAP3735 models provide versatile solutions for various applications, supporting capacities from 36 GB to 147 GB. The MAP3147, with its 10,000 RPM speed, is optimized for workloads requiring quick access and high throughput, making it suitable for transactional systems and enterprise applications. The MAP3735, while offering comparable capacity, emphasizes exceptional reliability and durability, which is crucial for environments that involve heavy data loads.

All these Fujitsu HDDs are characterized by their robust construction, reliability, and efficiency. They are built to withstand heavy workloads and are equipped with features like advanced thermal management and acoustic noise reduction, ensuring they operate effectively in data center environments.

In conclusion, Fujitsu's MAS3735, MAP3367, MAS3367, MAP3147, and MAP3735 series HDDs are designed for high performance and reliability, catering to both enterprise and mid-range environments. Their advanced features make them a strong choice for businesses looking to enhance their storage solutions while maintaining data integrity and system performance.