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Compaq / HP Smart Array 6400 Controller

Die Specifications laut HP Datenblatt :

The Smart Array 6400 high-performance Ultra320, PCI-X array controller provides maximum performance, flexibility, and reliable data protection for HP ProLiant servers, through its unique modular design and support for Advanced Data Guarding (RAID ADG). This new generation performance Smart Array controller again raises the standards of performance, introducing Double Data Rate (DDR) battery-backed write cache architecture and a new RAID engine.

Designed and tested with industry standard ProLiant Servers for greater reliability, this controller is ideal for workgroup, departmental, and enterprise servers. And like other Smart Array controllers, the SA-6400 features complete data compatibility with previous generation's Smart Array controllers for easy data migration from server to server and for controller upgradability.

Bei uns im HP DL385-G1 eingebaut

Wir haben den (unseren) ersten SA 6402 / 512 in einem DL385-G1 einegebaut mit 6 x 144 GB SCSI PLatten. Die Einstellung, wieviel von den 512 MB jetzt "input Cache" sind oder "output Cache", muß man im Einzelnen selbst überlegen.

Bei normalen Webservern ist das 75% Lesen und 25% Schreiben ok. Bei interaktiven Datenbanken oder Internet-shops ist mindestens 50/50% sinnvoll oder gar 75% Schreiben und nur 25% Lesen.

Models Smart Array 6402/128 Controller 273915-B21
  Smart Array 6404/256 Controller 273914-B21
  Smart Array 6404/512 Controller  

HP Smart Array 6400 Controller Feature List

  • Advanced RAID level: Advanced Data Guarding
  • High Performance Architecture
  • Innovative modular design
  • Upgradable cache for higher performance
  • Upgradable from 2 to 4 SCSI channels
  • High Capacity
  • 2 channel model supports up to 28 drives
  • 4 channel model supports up to 56 drives
  • Multiple battery-backed cache options
  • 128 MB, 256 MB DDR-RAM

Key Features

  • Advanced Data Guarding (RAID ADG) offers breakthrough level of fault protection of RAID volumes up to 2TB and a total of 28 disk drive in a RAID volume. RAID ADG provides fault protection greater than RAID 1 or RAID 5 and only consumes the capacity of 2 disk drives for distributed parity data. RAID ADG protects against any 2 disk drive failures. This higher level of protection is ideal to protect large logical volumes and with high capacity disk drives where a failed drive rebuild time may be significant.
  • Modular, easy-to-upgrade design lets you optimize performance and increase capacity as needed from two to four channels and 128 to 256MB battery-backed cache (BBWC).
  • High-performance, Sixth generation architecture offers a new hardware RAID engine, and a new performance 266MHz DDR memory architecture for increased performance over previous controllers.
  • Recovery ROM protects against a ROM failure or corruption.
  • Ultra320 SCSI technology delivers high performance and data bandwidth up to 320 MB/s bandwidth per channel.
  • Mix-and-match LVD SCSI compatibility protects your investments and lets you deploy drives as needed.
  • Battery-backed Cache protects cached data in the event of a power outage, server failure or controller failure, and redundant, replaceable batteries take that protection even further. Maximum cache configuration is 256-MB of battery-backed cache.
  • 64-bit, 133 MHz PCI-X interface boosts bandwidth above 1GB/s burst transfer rate over PCI-X bus
  • 64-bit memory addressing supports servers with greater than 4 GB of memory.
  • Online Management Features: Online Capacity Expansion, Online RAID Level Migration, Online Stripe Size Migration, Multiple Online Spares (Global), User Selectable Read/Write cache, User Selectable Expand and Rebuild Priority.

Product Highlights

The Smart Array Advantage

HP's innovative design and integration work of the Smart Array family of products creates customer value that is unmatched in the industry. Use of Smart Array products across multiple applications results in a much lower Total Cost of Ownership (TCO) than any other server storage RAID product. The HP Smart Array family brings an unparalleled return on investment through:

Data Compatibility among all models of Smart Array controllers allows simple and easy upgrades any time needs for higher performance, capacity, and availability increase. Even successive generations of Smart Array controllers understand the data format of other Smart Array Controllers.

Consistent Configuration and Management Tools. All Smart Array products utilize a standard set of management and utility software. These tools minimize Total Cost of Ownership (TCO) by reducing training requirements and technical expertise necessary to install and maintain the HP server storage.

Universal Hard Drive form factor is for use across multiple HP servers, disk enclosures and storage systems. With compatibility across many enterprise platforms, you are free to deploy and re-deploy these drives to quickly deliver increased storage capacity, migrate data between systems, and easily manage spare drives.

Pre-Failure Warranty means HP Insight Manager not only reports when a drive is going to fail but allows replacement of failing drives prior to actual failure. For complete details, consult the HP Support Center or refer to your HP Server documentation.

Data Compatibility

Data compatibility among all models of Smart Array Controllers means customers can instantly upgrade their Smart Array products to get to higher performance, capacity and availability. Unlike competitive products, successive generations of Smart Array products understand the data format of other Smart Array controllers, providing investment protection for your HP storage solution.


HP's new high-performance architecture sets new boundaries of industry performance expectations!

Ultra320 SCSI (320-MB/s bandwidth) per channel

High-performance 64-bit architecture, featuring a super-scalar RISC processor

New RAID XOR engine

Innovative dual processor, dual XOR engine design for the SA-6404

New performance 266MHz DDR memory architecture providing for greater performance through greater bandwidth

64-bit, 133-MHz PCI-X bus (1-GB/s bandwidth)


Given the need for rapid capacity expansion, the SA-6400 offers:



Up to four Ultra320 SCSI channels, supporting up to 56 disk drives



More than 8TB of storage per PCI slot


Provides increased server uptime by providing advanced storage functionality:



Online RAID Level Migration (between any RAID level)



Online Capacity Expansion



Logical Drive Capacity Extension



Global Online Spare



Pre-Failure Warranty

Fault Prevention

The following features offer detection of possible failures before they occur, allowing preventive action to be taken:



S.M.A.R.T.: Self Monitoring Analysis and Reporting Technology first developed at Compaq detects possible hard disk failure before it occurs, allowing replacement of the component before failure occurs.



Drive Parameter Tracking monitors drive operational parameters, predicting failure and notifying the administrator.



Dynamic Sector Repairing continually performs background surface scans on the hard disk drives during inactive periods and automatically re-maps bad sectors, ensuring data integrity.



Smart Array Cache Tracking monitors integrity of controller cache, allowing pre-failure preventative maintenance.



Environment Tracking for External Storage System monitors.

Fault Tolerance

Keeps data available and server running while a failed drive is being replaced; several fault tolerance configurations are supported including:



Advanced Data Guarding (RAID ADG): This is the highest level of fault tolerance. It allocates two sets of parity data across drives and allows simultaneous write operations. This level of fault tolerance can withstand two simultaneous drive failures without downtime or data loss. It is available standard with the SA-6400.



Distributed Data Guarding (RAID 5): This allocates parity data across multiple drives and allows simultaneous write operations. It is recommended for up to 14 hard drives.



Drive Mirroring (RAID 1, 1+0): This allocates half of the drive array to data and the other half to mirrored data, providing two copies of every file. It is a high-performance RAID configuration.

Fault Recovery

Minimizes downtime, reconstructs data, and facilitates a quick recovery from drive failure:



Recovery ROM: provides a unique redundancy feature that protects from a ROM failure. A new version of firmware can be flashed to the ROM while the controller maintains the last know working version of firmware. If the firmware becomes corrupt, the controller will revert back to the previous version of firmware and continue operating. This reduces the risk of flashing firmware to the controller.



On-Line Spares: Up to four spare drives can be installed prior to drive failure. If a failure occurs, recovery begins with an On-Line Spare and data is reconstructed automatically.



ECC-Protected Cache Memory: Removable, battery-backed cache memory protects data, up to four days (three days with 256-MB Module), in the event of power failure, server hardware failure or controller failure. In addition, HP provides an exclusive design that includes redundant and replaceable batteries for greater cache protection.

Ease of Use



Consistency and Upgradability make the Smart Array family unique in the industry:



GUI based configuration, management and diagnostic software tools



Common data formatting between generations of products



Data migration between servers and external storage enclosures

Servers Compatibility

For up to date compatibility, please see the following URL for complete Smart Array 6400 compatibility and support information:


Operating Systems Compatibility

Microsoft® Windows® NT® 4.0, 2000

NOTE: NT 4.0 support for U320 Expansion Module for the SA-6402 will not be available at launch.

Windows Server 2003

Novell NetWare 5.x, 6

SCO UnixWare® 7.1.1, 7.1.3

SCO Unix® 5.0.6a, 5.0.7

Red Hat Linux Advanced Server 2.1

Red Hat Enterprise Linux 2.1

Red Hat Linux 8.0

Red Hat Linux 7.2

Red Hat Linux 7.3


UnitedLinux 1.0

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