6947ch08.fm

Draft Document for Review April 7, 2004 6:15 pm

On/Off CoD right to use feature without transferring ownership. This might be desirable if the customer wants to put CBU on the z990 server, or simply wants to put business controls in place that prevent On/Off CoD from being used in the future. Application of feature code 9898 will terminate the right to use On/Off CoD. This feature cannot be ordered if a temporary session is already active. Similarly, CIU cannot be removed if a temporary session is active. Anytime CIU is removed, the On/Off CoD right to use will be simultaneously removed. Reactivating of the right to use feature will subject the customer to whatever terms and fees apply at that time.

Upgrade Capability during On/Off CoD

No upgrades involving physical hardware will be supported while an On/Off CoD upgrade is active on a particular z990 server. However, LIC-only upgrades can be ordered and retrieved from RETAIN but not applied while an On/Off CoD upgrade is active. LIC-only memory upgrades can be retrieved and applied while an On/Off CoD upgrade is active.

Repair capability during On/Off CoD

If the z990 server requires service while an On/Off CoD upgrade is active, the repair and verify code (R&V) will automatically deactivate the On/Off CoD upgrade. At the end of the repair, R&V will retrieve a new LIC record from RETAIN to replace the record that was deactivated. The On/Off CoD upgrade will be activated to the state prior to R&V, including restoration of the original activation date.

Monitoring

When the customer activates an On/Off CoD upgrade, an indicator is set in VPD data. This indicator is part of the call home data transmission which is sent on a scheduled basis. A time stamp is placed into call home data when the facility is deactivated. The CIU application monitors TSAD transmissions. At the end of each calendar month, CIU will send a note to generate an invoice for On/Off CoD used during that month.

Software

Software PSLC customers will be billed at the MSU level represented by the combined permanent and temporary capacity. All PSLC products will be billed at the peak MSUs enabled during the month, regardless of usage. Customers with WLC licenses will be billed by product at the highest 4 hour rolling average for the month. In this instance, temporary capacity will not necessarily increase the customer's softwarebill until that capacity is allocated to logical partitions and actually consumed.

Results from the STSI instruction will reflect the current permanent plus temporary CPs. See Table 6-3, “Minimum z/VM, z/VSE, VSE/ESA, TPF and Linux on zSeries Requirements” on page 148 for more details.

8.5 Capacity BackUp (CBU)

Capacity BackUp (CBU) is offered with the z990 servers to provide reserved emergency backup processor capacity for unplanned situations where customers have lost capacity in another part of their establishment and want to recover by adding the reserved capacity on a designated z990 server.

CBU is the quick, temporary activation of Central Processors (CPs), up to 90 days, in the face of a loss of customer processing capacity due to an emergency or disaster/recovery situation.

Note: CBU is for disaster/recovery purposes only and cannot be used for peak load management of customer workload.

204IBM eServer zSeries 990 Technical Guide

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IBM 990 manual Capacity BackUp CBU, Software, Upgrade Capability during On/Off CoD, Repair capability during On/Off CoD
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990 specifications

The IBM 990 series, often referred to in the context of IBM's pioneering efforts in the realm of mainframe computing, represents a unique chapter in the history of information technology. Introduced in the late 1960s, the IBM 990 series was designed as a powerful tool for enterprise-level data processing and scientific calculations, showcasing the company's commitment to advancing computing capabilities.

One of the main features of the IBM 990 was its architecture, which was built to support a wide range of applications, from business processing to complex scientific computations. The system employed a 32-bit word length, which was advanced for its time, allowing for more flexible and efficient data handling. CPUs in the IBM 990 series supported multiple instructions per cycle, which contributed significantly to the overall efficiency and processing power of the machines.

The technology behind the IBM 990 was also notable for its use of solid-state technology. This provided a shift away from vacuum tube systems that were prevalent in earlier computing systems, enhancing the reliability and longevity of the hardware. The IBM 990 series utilized core memory, which was faster and more reliable than the magnetic drum memory systems that had been standard up to that point.

Another defining characteristic of the IBM 990 was its extensibility. Organizations could configure the machine to suit their specific needs by adding memory, storage, and peripheral devices as required. This modular approach facilitated the growth of systems alongside the technological and operational demands of the business environments they served.

In terms of software, the IBM 990 series was compatible with a variety of operating systems and programming environments, including FORTRAN and COBOL, enabling users to access a broader array of applications. This versatility was a significant advantage, making the IBM 990 an appealing choice for educational institutions, research facilities, and enterprises alike.

Moreover, the IBM 990 was engineered to support multiprocessing, which allowed multiple processes to run simultaneously, further increasing its effectiveness in tackling complex computing tasks.

In summary, the IBM 990 series represents a significant advancement in computing technology during the late 20th century. With a robust architecture, versatile configuration options, and a focus on solid-state technology, the IBM 990 facilitated substantial improvements in data processing capabilities, making it a cornerstone for many businesses and academic institutions of its time. Its impact can still be seen today in the continued evolution of mainframe computing.
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