HP NetServer LT 6000r Server Controllers and Mass Storage Devices
HP NetServer LT 6000r Manual
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- HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 1
The proper selection of controller and storage devices, as part of either a single server or clustered system, enhances HP NetServers including hard disk drive products, Small Computer System Interface (SCSI) and disk array controllers, tape backup solutions, and the range of supported RAID - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 2
storage and controllers will have been addressed. Then the decisions that you make and the configurations that you select, as you evaluate server system choices, will meet your needs now and in the future. If you have additional questions on related topics, there are many HP NetServer white papers - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 3
drives, hard disk drives, scanners, 70 printers, disk array subsystems, and 60 CD-ROM drives server systems benefit by the increased Figure 2. Storage Controller Maximum specifications for cable length, transfer speed and maximum server systems will be more scaleable. SCSI supports a maximum - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 4
and on page 8. Controllers are available in three different form factors: • Embedded on a motherboard • As a card in a standard bus slot • Incorporated into an external storage unit Examples of each of these forms include: • Embedded − SCSI I/O chips − Embedded RAID in the HP NetServer LH 3 and LH - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 5
selected as functions of user needs and costs. For example, a high-end server system might support a dozen internal hot-swap disk drives whereas an entry-level system might have only a couple of fixed internal drives. External storage can be rack-mounted or as a pedestal. Some high-end systems - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 6
server is available to users. Some hardware configurations allow tape drives to be replaced "on-line" without powering down the server. server data protection and your server mass storage solutions. Does the server vendor really understand mass storage? Does the company have a track record supplying - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 7
drives are more likely to fail than other parts of my server, can the server management system-locally or remotely-completely view and control is this server to revenue or profitability, or to the productivity of the employees? HP NetServer Solutions Hewlett-Packard has been supplying system - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 8
. Performance improvements include 10K RPM drives and low voltage differential (Ultra2) SCSI technology. HP NetServers offers standard SCSI controllers in all server systems. Additional SCSI, Disk Array, or Fibre Channel controllers may be added. The HP NetServer website provides lists of tested - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 9
support for I2O in early 1998. Hewlett-Packard has launched the HP NetRAID-3Si disk array controller, the first in a line of HP NetServer products that will support the I2O standard. Fibre Channel Just as I2O capability improves the input/output transfers and the performance of the entire server - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 10
Servers, with its HP SureStore DAT drives. When used with OBDR compatible software this feature saves the DR "boot image" onto tape as part , in remote locations where IT support may not be available, ensures that the backup is performed. Clustered server systems increase backup complexity, since - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 11
following server mass storage alerts to the system operator: • Disk capacity threshold alert and usage tracking • SCSI controller and device failure notification (co-developed with Adaptec®) • Predictive failure analysis that warns of probable disk problem(s) HP SureStore tape backup devices support - HP NetServer LT 6000r | Server Controllers and Mass Storage Devices - Page 12
information about common tray disk drives, see: http://www.hp.com/netserver/products/accessories/hdd_curr.htm For additional information about hot swap disk drives, see: http://www.hp.com/netserver/products/accessories/hdd_curr2.htm Microsoft Cluster Server is a registered trademark of Microsoft
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Executive Summary
Description
The proper selection of controller and storage devices, as part of either a
single server or clustered system, enhances the system’s performance and
availability. Storage capacity, data transfer rates and response times to user
requests depend upon the types of controller and storage devices. These
devices significantly impact traditional measurements of system performance.
Availability depends upon the architecture of storage within a server system
so that the data and applications can be both protected and available at a
level consistent with the criticality of the server environment.
Storage management concerns the tools used to monitor and predict the
storage environment. The proper tools can make storage management
intuitive and informative, ultimately reducing total cost of ownership. These
management tools, combined with the correct controllers and disks, can
accommodate eventual system growth in both user base and application
complexity.
Topics Covered
You should read this white paper to become better acquainted with the
important issues related to selecting controller and mass storage devices
including
•
Choices between various devices, such as controllers, tape backup
drives, and disk drives
•
Physical means of storage organization, i.e. internal, external,
rack-mountable
•
Storage topology to improve system availability and performance
•
Storage management
This paper reviews many of the storage solutions that are available for
HP NetServers including hard disk drive products, Small Computer System
Interface (SCSI) and disk array controllers, tape backup solutions, and the
range of supported RAID solutions. The paper also examines the newest
offerings including I
2
O, Fibre Channel (FC), and Ultra2 SCSI where HP has
provided industry-wide leadership in the development and acceptance of
these standards.