Table 2-2 Available SCSI adapters

Feature code

Adapter description

Slot

Size

 

 

 

 

5703

Ultra320 SCSI RAID, bootable

64

long

 

 

 

 

5712

Ultra320 SCSI

64

short

 

 

 

 

6204

Ultra SCSI Differential

32

short

 

 

 

 

2.6 Internal storage

Two Ultra320 SCSI controllers under EADS-X chips that are integrated into the system planar are used to drive the internal disk drives. The six internal drives plug into the disk drive backplane, which has two separate SCSI buses and controllers with three disk drives per bus. Each of these controllers can be dynamically assigned to partitions if required.

The internal disk drive bays can be used in two different modes, depending on whether the SCSI RAID Enablement Card (FC 5709) is installed. (See 2.6.2, “Internal RAID options” on page 31.)

The p5-570 supports a split 6-pack disk drive backplane, which is designed for hot-pluggable disk drives. The disk drive backplane docks directly to the system planar. The virtual SCSI Enclosure Services (VSES) hot plug control functions are provided by the Ultra320 SCSI controllers.

2.6.1 Internal hot swappable SCSI disks

The p5-570 can have up to six hot-swappable disk drives plugged in the two logical 3-pack disk drive backplanes. The hot-swap process is controlled by the virtual SCSI Enclosure Services (VSES), which is located in the logical 3-pack disk drive backplane. (AIX assigns the name vses0 to the first 3-pack, and vses1 to the second, if present.) The two logical 3-pack disk drive backplanes can accommodate the devices listed in Table 2-3.

Table 2-3 Hot-swappable disk options

Feature code

Description

 

 

3273

36.4 GB 10,000 RPM Ultra3 SCSI hot-swappable disk drive

 

 

3277

36.4 GB 15,000 RPM Ultra3 SCSI hot-swappable disk drive

 

 

3274

73.4 GB 10,000 RPM Ultra3 SCSI hot-swappable disk drive

 

 

3278

73.4 GB 15,000 RPM Ultra3 SCSI hot-swappable disk drive

 

 

3275

146.8 GB 10,000 RPM Ultra3 SCSI hot-swappable disk drive

 

 

At the time of writing, if a new order is placed with more than one disk, the system configuration that is shipped from manufacturing may balance the total number of SCSI disks between the two logical 3-pack SCSI backplanes. In this case, this is for manufacturing test purposes and not because of any limitation. Having the disks balanced between the two

3-pack disk drive backplanes enables the manufacturing process to systematically test the SCSI paths and the devices related to them.

Prior to the hot-swap of a disk drive in the hot-swappable-capable bay, all necessary operating system actions must be undertaken to ensure that the disk is capable of being deconfigured. After the disk drive has been deconfigured, the SCSI enclosure device will power-off the slot, enabling safe removal of the disk. You should ensure that the appropriate

30p5-570 Technical Overview and Introduction

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IBM P5 570 manual Internal storage, Internal hot swappable Scsi disks

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.