IBM Confidential

Outstanding 32/64-bit price/performance in a rack-dense 1U, 2-way server for HPC applications

Integrity rx2600: Itanium 2 accesses memory at the FSB speed (400MHz, currently).

e325: Supports 333MHz PC2700 DDR ECC memory with higher performance than PC2100 memory.

Integrity rx2600: Supports only 266MHz PC2100 DDR ECC memory.

e325: The e325 with the Opteron processor can support a peak aggregate memory bandwidth of 10.6GB per second in a 2-way configuration, up to 25% better than that of the Itanium 2.

Integrity rx2600: The peak aggregate memory bandwidth of the Itanium 2 is 8.53GB per second in a system with a 400MHz FSB.

e325: The e325, with the 64-bitOpteron processor, is capable of running either 32-bit or 64-bit software natively, or both at once, at high performance.

Integrity rx2600: Using the 64-bit Xeon processor, the rx2600 is limited to only 64-bit software at high-speed. 32-bit software runs in emulation mode and therefore much slower than the clock rate would indicate.

e325: The Opteron processor can support a peak aggregate I/O bandwidth of 12.8GB per second in a 2-way 2.0GHz configuration, 100% better than that of the Itanium 2.

Integrity rx2600: The peak aggregate I/O bandwidth of the Itanium 2 is 6.4GB per second in a system with a 400MHz FSB.

e325: Models available with either low-cost IDE/ATA or high-performance Ultra320 SCSI drives.

Integrity rx2600: Offers only SCSI models.

e325: The 1U form factor means twice as many servers per rack as the rx2600, and lower data center floor-space costs in large numbers.

Integrity rx2600: The 2U form factor requires more racks in large quantities.

e325: Includes dual integrated Gigabit Ethernet controllers for high performance without using any adapter slots.

Integrity rx2600: Includes only one Gb Ethernet controller and one 10/100Mbps controller. Dual Gb requires an extra-costoption and consumes one of the adapter slots.

e325: The shallower depth of the e325 (66cm/26”) simplifies rack cable management and serviceability.

Integrity rx2600: The rx2600 at 68.6cm/26.5” is nearly an inch deeper than the e325.

e325: The e325 offers optional ACT cabling technology. This dramatically simplifies the cabling of rack-mounted servers and eliminates the need for potentially hundreds of KVM cables per rack of 1U servers and associated PDUs and KVM switches. This can save the customer as much as thousands of dollars per rack over standard KVM cabling, as well as significant administration time. Also, the interconnection can be done without opening the chassis, and a server can be taken offline without changing the wiring.

Integrity rx2600: HP offers a solution that requires an adapter in every rx2600, at a higher cost than the IBM ACT solution. It also requires opening every server to install the adapter, and rewiring the cabling whenever a server is taken offline—which can be a much more time-consuming process.

e325: Offers superior integer performance and most of the floating point performance16 of the rx2600 at a fraction of the price. Price/performance is tremendously better.

Integrity rx2600: The price is several times higher than for the e325 for similarly configured systems.

The Bottom Line

1.Sell speed: Faster memory and front-side bus helps your customers power through the toughest jobs. Integer performance is better than that of the rx2600. FP performance is about 20% lower, but at a much, much lower price.

2.Sell ACT cabling technology: It dramatically simplifies rack KVM cabling and reduces connectors, thereby helping to increase manageability and serviceability and reducing cabling cost and administration time.

16HP DL360 results: http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030630-02353.html;HP rx2600 results: http://www.spec.org/cpu2000/results/res2003q3/cpu2000-20030630-02322.html; IBM ^325 results will be available as of August 11, 2003. Price comparisons using public web prices as of July 28, 2003.

15.

325 specifications

The IBM 325, introduced in the early 1970s, was a notable member of IBM's family of computer systems that aimed to improve business efficiency and computational capabilities. It was part of the System/3 series, designed for small to medium-sized businesses that required a robust yet manageable computing environment. The IBM 325 is often recognized for its versatility, user-friendly operation, and advanced technologies for its time.

One of the main features of the IBM 325 was its modular design, which allowed businesses to expand their systems as their needs grew. This flexibility made the IBM 325 appealing for various industries, enabling organizations to tailor their computing resources to fit specific requirements. The system supported a range of input and output devices, enhancing its functionality and making it adaptable for different business processes.

The IBM 325 was equipped with a powerful processor that provided efficient data processing capabilities. It supported batch processing, enabling businesses to handle large volumes of transactions effectively. The system could manage multiple users simultaneously, making it suitable for environments where several operations needed to be performed at once.

One of the standout technologies used in the IBM 325 was its magnetic core memory, which ensured fast access and reliable data storage. This memory type was known for its durability and performance, characteristics crucial for business operations that required constant uptime and quick data retrieval. Additionally, the system utilized advanced disk storage technology, allowing users to maintain significant data sets without the risk of loss or corruption.

Another important aspect of the IBM 325 was its software ecosystem. It supported various programs tailored to accounting, inventory management, and data processing. The software was designed to be intuitive, ensuring that employees could quickly adapt to the system without extensive training. This user-friendly interface contributed to smoother business operations and increased productivity.

In summary, the IBM 325 was a significant asset for companies in the 1970s, combining modular design, advanced processing power, reliable memory technology, and an easy-to-use software environment. Its ability to adapt to the needs of growing businesses while offering efficient solutions made it a cherished tool in the world of computing. As businesses navigated the early days of digital technology, the IBM 325 provided a bridge to more advanced systems that would emerge in the following decades.