available to the specific partition, using mksysb, for example.

SCSI disk, and Virtual SCSI disk The more common method of booting the system is to use a disk situated in one of the hot-swap bays in the front of the machine. However, any external SCSI-attached disk could be used if required. As described in previous sections, Virtual SCSI devices are also available to a logical partition.

SSA disk

The p5-570 supports booting from an SSA disk either as

 

an AIX system disk or as a RAID LUN. For more

 

information about the SSA boot, see the SSA Frequently

 

Asked Questions located on the Web9.

 

 

 

Important: Fastwrite must not be enabled on the boot

 

resource SSA adapter.

SAN boot

 

It is possible to boot the p5-570 system from an SAN

 

using a 2 GB Fibre Channel Adapter (FC 6239 or

 

FC 5716), or to boot one partition using the dedicated

 

2 GB Fibre Channel Adapter or the Virtual SCSI device

 

related to this adapter. The IBM 2105 Enterprise Storage

 

Server (ESS) is an example of an SAN-attached device

 

that can provide a boot medium.

LAN boot

Network boot and NIM installs can be used if required.

 

Logical partitions can use either a dedicated Ethernet

 

adapter or Virtual Ethernet to accomplish this.

2.11.10 Security

The p5-570 system enables you to set two different types of passwords to limit access to these systems: The admin password is usually used by the system administrator, and the general ID password provides limited access to the system functions and is usually available to all users who are allowed to power-on the server, especially remotely. These are defined in the ASMI menus.

2.12 Operating system requirements

All new POWER5 servers are capable of running IBM AIX 5L for POWER and support appropriate versions of Linux. AIX 5L has been specifically developed and enhanced to exploit and support the extensive RAS features on IBM Sserver pSeries systems.

2.12.1 AIX 5L

The p5-570 requires AIX 5L Version 5.3 or AIX 5L Version 5.2 Maintenance Package 5200-04 (IY56722) or later.

The system requires the following media:

￿AIX 5L for POWER Version 5.2 5765-E62, dated 08/2004 (CD# LCD4-1133-04) or later

￿AIX 5L for POWER Version 5.3 5765-G03, dated 08/2004 (CD# LCD4-7463-00) or later

9http://www.storage.ibm.com/hardsoft/products/ssa/faq.html

Chapter 2. Architecture and technical overview 49

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IBM P5 570 manual Operating system requirements, Security, AIX 5L

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.