IBM MegaRAID 8480 manual PCI Express Performance, Usability Features

•Supports SATA II data transfers of 3.0 Gbits/s

•Supports STP data transfers of 3.0 Gbits/s

•Provides a serial, point-to-point storage interface

•Simplifies cabling between devices

•Eliminates the master-slave construction used in parallel ATA

•Allows addressing of multiple SATA II targets through an expander

•Allows multiple initiators to address a single target (in a fail-over configuration) through an expander

1.6.3PCI Express Performance

The following list describes the PCI Express performance features:

•Provides a PCI Express interface that:

–Supports a dedicated PCI Express bus

–Supports x4 or x8 lane configuration

–Supports transfer rates of up to 2.5 Gbits/s per lane

–Complies with the PCI Express Specification, Revision 1.0a

•Provides unequaled performance through the Fusion-MPT architecture

•Provides high throughput and low CPU utilization to offload the host processor

•Uses an Intel IOP333 I/O processor

1.6.4Usability Features

The following list describes the usability features:

•Simplifies cabling with point-to-point, serial architecture

•Supports smaller, thinner cables that do not restrict airflow

•Provides drive spin-up sequencing control

•Provides up to two LED signals for each PHY to indicate link activity and faults

•Provides an I2C interface for enclosure management

1-10Overview

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