c.Drive parameter (page code = 4)

To explicitly specify the number of cylinders in the user space, specify the number in the "number of cylinders" field. Note that the number of alternate cylinders specified by the format parameter (page code = 3) is included in the number of cylinders in the user space. When the number of cylinders need not be specified, specify 0 or the default value in the "number of cylinders" field. In this case, either of the smaller value between the number of cylinders to allocate the number of logical data blocks specified in the "number of data blocks" field of the block descriptor or the maximum number of cylinders that can be used as the user space on the disk drive is allocated in the user space. When 0 is specified both in the "number of cylinders" field and the "number of data blocks" field of the block descriptor, the maximum number of cylinders that can be used as the user space on the disk drive is allocated in the user space.

(2)FORMAT UNIT command

Initialize all sides of the disk with the FORMAT UNIT command. The FORMAT UNIT command initializes all sides of the disk using the P lists, verifies data blocks after initialization, and allocates an alternate block for a defect block detected with verification. With initialization, the value "00" is written into all bytes of all logical data blocks. Only the position information of defect blocks detected with verification is registered in the G list. The specifications are as follows:

a.Specifying CDB

Specify 0 for the "FmtData" bit and the "CmpLst" bit on CDB, 000 for the "Defect List Format" field, and data pattern written into the data block at initialization for the "initializing data pattern" field.

b.Format parameter

When the values in step a. are specified with CDB, the format parameter is not needed.

5.4.4Setting parameters

The user can specify the optimal operation mode for the user system environments by setting the following parameters with the MODE SELECT or MODE SELECT EXTENDED command:

∙Error recovery parameter

∙Disconnection/reconnection parameter

∙Caching parameter

∙Control mode parameter

With the MODE SELECT or MODE SELECT EXTENDED command, specify 1 for the "SP" bit on CDB to save the specified parameter value on the disk. This enables the IDD to operate by using the parameter value set by the user when power is turned on again. When the system has more than one INIT, different parameter value can be set for each INIT.

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Fujitsu MAG3091FC, MAF3364FC, MAG3182FC manual Setting parameters
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MAG3182FC, MAF3364FC, MAG3091FC specifications

Fujitsu has established itself as a leading provider of storage solutions, with a robust lineup that includes the MAG3182FC, MAG3091FC, and MAF3364FC hard drives. These models cater to the needs of enterprise and data center environments, focusing on reliability, performance, and advanced technology.

The Fujitsu MAG3182FC is a Fibre Channel hard drive designed for high-speed data transfer and optimal storage performance. With a capacity of 18.2 GB, it is built for applications requiring rapid access to data. The drive operates at a spindle speed of 10,000 RPM, ensuring quick data retrieval and low latency. It features a 2 Gbps Fibre Channel interface, which allows for fast communication between the drive and the server, making it ideal for environments that demand high throughput, such as transaction processing and database management.

Next in line is the Fujitsu MAG3091FC. This model takes the capabilities of its predecessor a step further with a capacity of 9.1 GB and similar 10,000 RPM speed. The MAG3091FC is also equipped with a 2 Gbps Fibre Channel interface, providing the same high-performance connectivity. Its reliability is enhanced with advanced error correction and a design that minimizes the risk of data loss, making it suitable for mission-critical applications where uptime is essential.

Lastly, the Fujitsu MAF3364FC hard drive is tailored for enterprise-level operations, featuring a capacity of 36.4 GB. It utilizes a 10,000 RPM spindle speed and is built with the same 2 Gbps Fibre Channel interface, ensuring swift access to stored data. The MAF3364FC stands out for its improved data integrity features, including sophisticated error correction codes and a robust design that enhances durability. Its higher capacity combined with fast access times makes it a versatile choice for data-intensive applications and large-scale storage solutions.

All three drives incorporate Fujitsu's commitment to innovation, featuring technologies like S.M.A.R.T (Self-Monitoring, Analysis, and Reporting Technology) for predictive failure analysis. They are designed to operate in demanding environments, ensuring that businesses can rely on them for consistent performance and data protection. In summary, the Fujitsu MAG3182FC, MAG3091FC, and MAF3364FC represent a powerful collection of enterprise-grade hard drives, providing advanced features and technologies that meet the rigorous demands of modern data storage needs.
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