the p5-570 system. If you have more than one I/O drawer, you continue the loop, connecting the next drawer (or drawers) with the same rule.

SPCN cabling examples

Primary drawer

SPCN port 0

SPCN port 1

I/O drawer or secondary drawer

SPCN port 0

SPCN port 1

Primary drawer

SPCN port 0

SPCN port 1

I/O drawer or secondary drawer

SPCN port 0

SPCN port 1

I/O drawer or secondary drawer

SPCN port 0

SPCN port 1

Figure 2-14 SPCN cabling examples

There are different SPCN cables to satisfy different length requirements:

￿SPCN cable drawer-to-drawer, 2 m (FC 6001)

￿SPCN cable drawer-to-drawer, 3 m (FC 6006)

￿SPCN cable rack-to-rack, 6 m (FC 6008)

￿SPCN cable rack-to-rack, 15 m (FC 6007)

2.7.6External disk subsystems

The p5-570 system has internal hot-swappable drives. Internal disks are usually used for the AIX rootvg and paging space. The two 3-pack backplanes can be split when the SCSI RAID Enablement Card is not part of the p5-570 configuration. Additional customer requirements can be satisfied with any of several external disk options that the p5-570 supports.

IBM 2104 Expandable Storage Plus

The IBM 2104 Expandable Storage Plus Model DS4 is a low-cost 3U disk subsystem that supports up to 14 Ultra320 SCSI disks from 18.2 GB to 146.8 GB at time of writing. This subsystem could be used in splitbus mode, which means that the bus with 14 disks could be split into two buses with seven disks each. In this configuration, two additional LPARs could be provided with up to seven disks by using one Ultra3 SCSI adapter (FC 6203) for each LPAR. If RAID is required, one Ultra3 SCSI RAID adapter (FC 5703) can be used for each LPAR.

For more information about the IBM 2104 Expandable Storage Plus subsystem, visit:

http://www.storage.ibm.com/hardsoft/products/expplus/expplus.htm

36p5-570 Technical Overview and Introduction

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IBM P5 570 manual External disk subsystems, IBM 2104 Expandable Storage Plus

P5 570 specifications

The IBM P5 570 is a high-performance server that was designed for enterprise-scale computing, offering a blend of advanced technologies and a flexible architecture. Launched as part of IBM's Power5 server line, the P5 570 stands out for its robust processing capabilities and extensive scalability, making it a preferred choice for businesses requiring reliable and efficient computing solutions.

At the heart of the P5 570 is the IBM Power5 processor, which employs simultaneous multi-threading (SMT) technology. This allows the processor to handle two threads per core, effectively doubling the throughput for workloads ideally suited to multi-threading. The server typically features a configuration of up to 32 Power5 processors, providing an impressive compute power that supports demanding applications, ranging from databases to complex enterprise resource planning (ERP) systems.

The P5 570 architecture supports a wide range of memory configurations, with a maximum memory capacity of up to 512 GB. Utilizing IBM’s proprietary Chip Memory technology, it can deliver high bandwidth and low latency, significantly enhancing performance for memory-intensive applications. Furthermore, the integrated memory controller architecture optimizes memory access, ensuring that critical workloads run smoothly.

Scalability is a key characteristic of the P5 570, with the ability to expand processing power and memory capacity as an organization’s needs grow. The server supports various operating systems, including AIX, Linux, and IBM i, which provides flexibility for diverse IT environments. This versatility ensures that companies can run their preferred applications without the need for substantial system overhauls.

In terms of storage, the P5 570 utilizes advanced RAID technology and supports a variety of disk configurations, ensuring that data integrity and availability are maintained. Coupled with built-in security features, such as the IBM Trusted Foundation, which establishes a secure boot environment, the P5 570 offers a reliable platform for mission-critical workloads.

Finally, the IBM P5 570 is designed for high availability and redundancy. Features like hot-swappable components and advanced error detection and recovery mechanisms minimize downtime, making it a dependable choice for businesses that operate around the clock. Combined with its powerful hardware and versatile software support, the IBM P5 570 remains a formidable player in the high-performance server arena.