IBM DS8000 manual Power and cooling, Fibre Channel supported servers, Fibre Channel distances

The card itself is PCI-X 64 Bit 133 MHz. The card is driven by a new high function, high performance ASIC. To ensure maximum data integrity, it supports metadata creation and checking. Each Fibre Channel port supports a maximum of 509 host login IDs. This allows for the creation of very large storage area networks (SANs). The design of the card is depicted in Figure 2-16.

	QDR		Processor
		PPC	1 GHz
	Fibre Channel	750GX
	Protocol
	Engine
		Data Protection		Buffer
	Fibre Channel	Data Mover
		ASIC
	Protocol
			Flash
	Engine			Data Mover
Protocol	QDR
Chipset
Figure 2-16 DS8000 FICON/FCP host adapter

Fibre Channel supported servers

The current list of servers supported by the Fibre Channel attachment is at this Web site:

http://www.storage.ibm.com/hardsoft/products/DS8000/supserver.htm

This document should be consulted regularly because it has the most up-to-date information on server attachment support.

Fibre Channel distances

There are two types of host adapter cards you can select: long wave and short wave. With long-wave laser, you can connect nodes at distances of up to 10 km (non-repeated). With short wave you are limited to a distance of 300 to 500 metres (non-repeated). All ports on each card must be either long wave or short wave (there can be no mixing of types within a card).

2.6 Power and cooling

The DS8000 power and cooling system is highly redundant.

Rack Power Control cards (RPC)

The DS8000 has a pair of redundant RPC cards that are used to control certain aspects of power sequencing throughout the DS8000. These cards are attached to the Service Processor (SP) card in each processor, which allows them to communicate both with the Storage Hardware Management Console (S-HMC) and the storage facility image LPARs. The RPCs also communicate with each primary power supply and indirectly with each rack’s fan sense cards and the disk enclosures in each frame.

Chapter 2. Components 39