Fixed-Disk Tests:

vSeek Tests - checks the physical operation of the drive head.

–Linear Seek

–Random Seek

–Min-Max Seek

–Butterfly Seek

vVerify Tests - checks the integrity of the data present on the media.

–Linear Verify

–Random Verify

vSurface Scan Tests - checks the drive media for defects.

–Surface Scan (Linear)

–Surface Scan (Aggressive) - this is disabled for normal customer use.

–Surface Scan (Random)

vSMART - checks the SMART functionality for drives that support SMART.

–Start SMART Self-Test

–Get SMART test results

Other Test Features:

vWrite-Splice Repair - detects and corrects Error Correction Code errors during Verify tests.

vAuto Spin Down - a gradual spin down of the drive platters to avoid damaging the media.

vManufacturer Log - an in-depth manufacturer supported log of errors on the drive.

Multitasking:

To allow simultaneous testing of multiple hard drives whenever possible, the FDAT module is written as a set of multitasking functions. Each drive under test can run the same test or run a different test at the same time. Each subtest is written to handle a single test pass and all test variables are kept track of in a structure unique for each drive. However, when testing IDE drives, FDAT will not perform simultaneous testing of IDE drives that are attached to the same IDE cable. For example, if FDAT is testing four IDE drives on a PC, it will perform simultaneous testing on drives 1 and 3 first (master drives), then perform tests on 2 and 4 (slave drives). FDAT will also perform simultaneous testing on a master and slave that are on separate IDE cables, but will not perform simultaneous tests on a master and slave on the same IDE cable. This generally increases the amount of time needed to test multiple IDE drives.

Another limitation of FDAT’S multitasking capability is the use of Ultra DMA (UDMA). Only one drive at a time can access the UDMA channel and the UDMA channel buffer must be kept high in order to maintain a speed advantage over other data transfer modes. In order to use the UDMA channel during testing, users must disable the multitasking feature.

Destructive vs non-destructive testing:

Most of the tests found in FDAT are non-destructive. This means that PCDR will preserve any data that is present on the tested media prior to beginning any destructive operations (i.e. write operations). However, users can run certain tests

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IBM 8193, 8128, 8185, 8189, 8195, 8186, 8187, 8191, 8188, 8197, 8194, 8192, 8190, 8196 manual Fixed-Disk Tests
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8192, 8191, 8196, 8197, 8195 specifications

IBM has been a pioneer in computing technology, and among its extensive line-up of systems, the IBM 8316, 8198, 8199, 8191, and 8434 stand out due to their unique features, advanced technologies, and robust characteristics.

The IBM 8316, often referred to as the IBM 8316 Enterprise, is designed for small to medium-sized businesses seeking reliable processing capabilities. It incorporates a powerful processor that supports high-speed data processing and multitasking. Its main feature includes a modular architecture, which allows for easy upgrades and scalability. It also comes equipped with advanced security features, ensuring that sensitive data remains protected.

The IBM 8198, part of the IBM System i series, offers a blend of both performance and reliability. Its standout characteristic is the integration of IBM's Power Systems technology, which provides exceptional performance for mid-range environments. Features such as high availability and redundancy are built into the infrastructure, allowing businesses to run mission-critical applications seamlessly. Moreover, the IBM 8198 supports a wide array of operating systems, including IBM i, which enhances its versatility for different enterprise needs.

Moving to the IBM 8199, which is well-known for its robust infrastructure, it excels in processing large volumes of transactions. One of its key attributes is the advanced virtualization capabilities that allow multiple operating systems and applications to run concurrently on a single physical machine. This not only improves resource utilization but also reduces operational costs. Businesses can benefit from its comprehensive disaster recovery features, ensuring high uptime and business continuity.

The IBM 8191 further complements this line with its focus on enterprise resource planning systems. It is designed to handle extensive data processing while featuring powerful storage solutions. The integration of AI and machine learning technologies allows businesses to analyze their data seamlessly, turning potential insights into actionable strategies.

Lastly, the IBM 8434 is significant for its high-performance capabilities and reliability. Utilized in data-intensive environments, it supports advanced analytics and business intelligence processing. Key characteristics of the 8434 include exceptional scalability, enabling organizations to grow without significant infrastructure changes. It also features robust backup and recovery features, ensuring that data integrity is maintained at all times.

Together, these IBM systems epitomize the company's commitment to providing innovative, reliable, and scalable computing solutions for businesses of all sizes. Their unique features and technologies make them integral components of modern enterprise IT environments.
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