Dell PowerVault MD1000 SAS Solution- User Manual
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Table of Contents:
- Page 2 – STORAGE; Reprinted from; Dell SAS implementation; Dell PowerVault MD1000 external disk enclosure; Figure 1. Comparison of SCSI and SAS technologies
- Page 3 – Dell PowerEdge RAID Controller 5/E; Figure 3. High-capacity Dell PowerVault MD1000 SAS configuration
- Page 4 – BIOS Configuration Utility; Controller configuration:; Figure 5. BIOS Configuration Utility
- Page 5 – Battery configuration:; SAS: The next step in server-centric storage; Sangram Kadam; is an engineer in the Dell Enterprise Quality–Storage; F O R M O R E I N F O R M AT I O N; Dell PowerVault storage:; Dell OpenManage Server Administrator User’s Guide:
www.dell.com/powersolutions
Reprinted from
Dell Power Solutions,
August 2006. Copyright © 2006 Dell Inc. All rights reserved
.
DELL POWER SOLUTIONS
1
STORAGE
F
or more than 20 years, SCSI technology has been
deployed to meet mainstream enterprise storage
requirements. With the arrival of Serial Attached SCSI
(SAS)—the next generation of SCSI-based disk technology—
enterprises can deploy storage systems that are more flex-
ible and scalable than ever before.
As the industry’s first 3.5-inch SAS-based disk enclosure,
the PowerVault MD1000 storage expansion enclosure builds
upon the Dell tradition of offering expandable server storage.
By incorporating SAS technology, the PowerVault MD1000
is designed to offer a point-to-point architecture capable of
delivering up to 12 Gbps performance. Along with the PCI
Express–based Dell PowerEdge RAID Controller 5/Extended
(PERC 5/E), the PowerVault MD1000 can help enterprises to
meet their growing direct attach storage needs.
Development of SCSI technology
Over the years, parallel SCSI has matured and become
the storage interconnect of choice for many mainstream
enterprises deploying server-centric storage. Although
parallel SCSI has continued to mature with Ultra320
SCSI—the latest version—the SCSI standard has reached
performance saturation because of the limitations of the
parallel bus architecture. Also, parallel SCSI can limit
scalability because of the restricted addressability of SCSI
devices, which is 16 IDs per SCSI bus.
The SAS protocol was developed to address needs
for high performance and addressability of direct
attach storage. This protocol builds upon mature par-
allel SCSI technology and implements point-to-point
architecture that enables current speeds of 3 Gbps
per connection—thus, a 4X connection provides up
to 12 Gbps. The SAS protocol also provides support
for SAS and Serial ATA (SATA) devices in the same
environment.
With its point-to-point architecture, the SAS protocol
implements expanders to allow the connection of more
drives than ports. SAS expanders are physical device–level,
BY SANGRAM KADAM
Scaling Direct Attach Storage
with the Dell PowerVault MD1000 Storage Expansion Enclosure
Serial Attached SCSI (SAS) introduces new levels of performance and scalability for
direct attach storage. To take advantage of industry-standard SAS technology, Dell
offers the Dell
™
PowerVault
™
MD1000 storage expansion enclosure. When combined
with the Dell PowerEdge
™
RAID Controller 5/Extended and the Dell OpenManage
™
Server Administrator application, the PowerVault MD1000 can provide a comprehen-
sive SAS storage system.
Related Categories:
Dell PowerVault storage
RAID controllers
Serial ATA (SATA)
Serial Attached SCSI (SAS)
Storage
Visit www.dell.com/powersolutions
for the complete category index.
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Summary
STORAGE DELL POWER SOLUTIONS Reprinted from Dell Power Solutions, August 2006. Copyright © 2006 Dell Inc. All rights reserved . August 2006 2 store-and-forward switches that let a single SAS port address more than one device. A SAS domain is formed by a network of SAS devices that are interconnected...
STORAGE www.dell.com/powersolutions Reprinted from Dell Power Solutions, August 2006. Copyright © 2006 Dell Inc. All rights reserved . DELL POWER SOLUTIONS 3 Dell PowerEdge RAID Controller 5/E The PCI Express–based PERC 5/E provides RAID capabilities for the PowerVault MD1000 SAS enclosure. The RAID...
STORAGE DELL POWER SOLUTIONS Reprinted from Dell Power Solutions, August 2006. Copyright © 2006 Dell Inc. All rights reserved . August 2006 4 Management tools for the PowerVault MD1000SAS implementation After the hardware is physically deployed, virtual disks can be configured on the drives in the e...
