Board Components and Features
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Compaq Smart Array 5300 Controller User Guide
COMPAQ CONFIDENTIAL
Writer: John Turner File Name: b-ch1 board components.doc
Codename: SilverHammer Part Number: 135606-004 Last Saved On: 7/22/02 11:09 AM
PCI System Interface
Smart Array 5300 controllers interface to the server through a high-performance
64-bit PCI bus that:
•
Runs at 66 MHz
•
Provides a high-speed path (up to 528 MB/s) between the system board and the
controller
•
Includes two parity protection signals
The Smart Array 5300 Controller is a PCI Bus Master device conforming to Rev. 2.2
of the PCI Local Bus Specification. As a bus master device, it takes control of the
PCI bus during high-speed transfers, freeing the system processor to handle
application processing or other types of tasks.
For maximum performance, Compaq recommends that you use only 66-MHz devices
on any given 66-MHz PCI bus. Combining 66-MHz and 33-MHz devices on a PCI
bus will decrease the overall bandwidth to 33-MHz speeds.
SCSI Support
The Smart Array 5300 Controller supports drives that conform to Wide Ultra3 and
Wide Ultra2 standards. Although Wide Ultra2 devices operate at a different
maximum speed from Wide Ultra3 devices, operating speeds are unaffected if they
are connected to the same SCSI bus because they both use low voltage differential
(LVD) signaling.
Fault Management Features
The array controller and the network operating system support several fault
management and data reliability features that minimize the impact of hard drive
defects on your system.