d)If an error is detected in initial self-diagnosis the LED blinks. In this case, it is recommended to issue the REQUEST SENSE command from the initiator (host system) to obtain information (sense data) for error analysis.

IMPORTANT

The LED lights during the IDD is executing a command.

However, in same commands, the lighting time is only an instant.

Therefore, it seems that the LED blinks or the LED remains off.

5.6.2Checking SCSI connection

When the initial operation is checked normally after power is turned on, check that the IDD is connected to the SCSI bus from the host system. Although checking the connection depends on the structure of the host system, this section describes the general procedures.

(1)Checking procedure

Issuing the commands and determining the end status depends on the start mode of the spindle motor and UNIT ATTENTION report mode (specified with setting terminal). Figure 5.4 shows the recommended checking procedure for the mode that the motor starts when power is turned on. Figure 5.5 shows for the mode that the motor starts by the START/STOP command. In these recommended checking procedures, following items are checked.

Note:

Following steps a) to e) correspond to a) to e) in Figures 5.4 and 5.5.

a)Issue the TEST UNIT READY command and check that the IDD is connected correctly to the SCSI bus and the initial operation after power is turned on ended normally. The command issue period of the TEST UNIT READY command shall be more than 20 ms.

b)To control starting of the spindle motor from the host system, issue the START/STOP UNIT command to start the spindle motor.

c)Check the SCSI bus operations with the WRITE BUFFER and READ BUFFER commands. Use data whose data bus bits change to 0 or 1 at least once. (Example: Data with an increment pattern of X'00' to X'FF')

d)Start the IDD self-diagnostic test with the SEND DIAGNOSTIC command and check the basic operations of the controller and disk drive.

C141-E064-03EN

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Fujitsu MAF3364LC, MAF3364LP, MAG3182LC, MAE3182LC, MAE3091LC manual Checking Scsi connection
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MAE3091LC, MAE3182LC, MAG3182LC, MAF3364LC, MAF3364LP specifications

The Fujitsu MAF3364LC, MAE3091LC, MAF3364LP, MAG3182LC, and MAE3182LC are distinguished members of Fujitsu's hard drive lineup, tailored for high-performance computing and storage solutions. Each of these drives possesses unique features and technologies, making them suitable for various applications in computing environments.

The MAF3364LC is a high-capacity and high-performance SCSI hard disk drive that offers a storage capacity of up to 6.4 GB. It operates at a spindle speed of 10,000 RPM, ensuring fast data access and transfer rates. This drive utilizes advanced technology designs, such as a fluid dynamic bearing spindle motor, which enhances reliability and reduces noise levels. Its SCSI interface allows for multiple device connections, making it ideal for enterprise-level applications where performance is critical.

The MAE3091LC, on the other hand, also features a 10,000 RPM spindle speed but caters to a slightly lower capacity of 9.1 GB. Its Ultra SCSI interface ensures swift data throughput, making it suitable for data-intensive applications. The drive’s robust construction is designed to withstand the rigors of continuous operation, offering an MTBF (Mean Time Between Failures) rating that speaks to its reliability and endurance in demanding environments.

Moving on to the MAF3364LP, this model offers similar capacity to the MAF3364LC but operates at a lower power consumption rating, making it an eco-friendly choice for users who are conscious of energy usage. It retains the same high-speed performance capabilities, thanks to its efficient design and technology integrations.

The MAG3182LC is known for its high-capacity support and performance balance, with 18.2 GB of storage and a spindle speed of 10,000 RPM. It boasts enhanced data integrity features and advanced error correction technologies that allow for high data accuracy and reliability, ensuring that enterprises can depend on their stored information.

Lastly, the MAE3182LC offers a mix of performance and capacity, with its 18.2 GB storage. Utilizing a SCSI interface and maintaining a robust build, this drive is particularly suited for server environments that demand long continuous running times without compromising reliability.

In summary, these Fujitsu drives encompass advanced technologies, robust designs, and high-speed performance, catering to various needs from enterprise storage to high-demand applications. Their characteristics ensure that users receive not only adequate capacity but also reliability and efficiency, solidifying Fujitsu's reputation in the storage solutions market.
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