5.4Checking Operation after Installation and Preparing the HDD for Use

5.4Checking Operation after Installation and Preparing the HDD for Use

5.4.1Checking initial operation

This section explains how to check operation after power is turned on. Since the initial operation of an HDD differs depending on the settings of the motor start mode, check the following initial operations according to the motor start mode set during installation.

(1)Initial operation if the settings have been specified so that turning power on automatically starts rotating the motor

a)When power is turned on, the Active LED blinks and the HDD starts the initial self-diagnosis.

b)If the initial self-diagnosis detects a problem, the HDD sends the Fault LED Out signal to the interface connector, as specified by SFF8045.

Remark: The spindle motor may or may not start rotating in this stage.

c)If the HDD is in idle mode, the Active LED remains lit. (When the initiator accesses the HDD, the LED goes off and then goes on again at the end of the processing requested by the initiator.)

(2)Initial operation if the settings have been specified so that the START/STOP UNIT command is used to start rotating the motor

a)When power is turned on, the Active LED goes on momentarily and the HDD starts the initial self-diagnosis.

b)If the initial self-diagnosis detects a problem, the HDD sends the Fault LED Out signal to the interface connector, as specified by SFF8045.

c)The spindle motor does not rotate until the START/STOP UNIT command is received. The initiator is required to use the procedure described in Section 5.4.2 to send the START/STOP UNIT command.

d)About 60 seconds after the START/STOP UNIT command is received, the disk drive enters the READY state. The HDD then starts reading system information from the system space on disks.

e)The Active LED goes off while the command is being executed.

(3)Take the following actions if a problem occurs:

a)Check if all cables are correctly connected.

b)Check if the power supply voltage is correct. (Measure the voltage at the power connector on the HDD.)

c)Continuous sending of the Fault LED Out signal to the interface connector indicates the initial self-diagnosis has detected a problem. In this event and if the situation allows, sense data should be obtained by issuing the REQEUST SENSE command from the initiator (host system). Sense data is information required for troubleshooting.

C141-E235

5-5

Page 66 Page 68
Page 67
Image 67
Fujitsu MAW3147FC, MAW3300FC, MAW3073fc manual C141-E235
Page 66 Page 68

MAW3073fc, MAW3147FC, MAW3300FC specifications

The Fujitsu MAW3073fc, MAW3300FC, and MAW3147FC are high-performance Fibre Channel hard disk drives that cater to enterprise storage solutions. Designed for demanding applications, these drives are engineered to deliver reliability, speed, and capacity, making them suitable for data centers and other high-availability environments.

The MAW3073fc offers a storage capacity of 73GB and operates at 15,000 RPM, ensuring rapid data access and high throughput. This drive features advanced error correction capabilities, enhancing data integrity while minimizing downtime. The MAW3073fc supports the Fibre Channel interface, enabling fast data transfer rates that are essential for high-performance computing scenarios.

Following this, the MAW3300FC steps up the game with a larger capacity of 300GB, also spinning at 15,000 RPM. It boasts enhanced reliability features, including improved thermal management and vibration tolerance, which significantly reduce wear and tear and prolong the drives' lifespan. Its hot-swappable design allows for easy maintenance, making it an ideal choice for critical applications that require minimal disruptions.

The MAW3147FC further expands the offering with a storage capacity of 147GB. Designed for applications that require a balance between performance and capacity, this drive provides a reliable solution for enterprise environments. Like its counterparts, it operates at 15,000 RPM, ensuring swift data retrieval and consistency under heavy loads. The MAW3147FC also implements sophisticated caching algorithms that optimize read and write performance.

All three drives utilize SCSI command sets and feature RAID support, making them compatible with various enterprise storage systems. These drives are built with enterprise-grade components, ensuring durability and reliability, crucial in mission-critical setups. The combination of high RPM speeds, reliability features, and large capacities makes the Fujitsu MAW series an excellent choice for organizations looking to enhance their storage infrastructure.

In terms of technologies, these drives use advanced servo technology and tight mechanical tolerances to achieve high precision and performance. Moreover, they are designed to operate in environments with rigorous temperature and humidity controls, further enhancing their reliability. The MAW series exemplifies Fujitsu's commitment to providing high-quality, performance-driven storage solutions for modern enterprise needs.
Top Page Image Contents