QuickSpecs
storage systems. While technologies like parallel SCSI meet most performance requirements of today's
enterprise solutions, continued demands for higher speeds, increasingly robust data integrity, smaller
designs and wider standardization have cast doubt on the ability of parallel technologies to economically
keep pace with increasing CPU processing power and disk drive speeds. SAS is the new evolution of
SCSI technology designed to overcome the limitations of the SCSI architecture and delivers a number of
benefits to enterprise systems:
New levels of performance
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SAS is capable of moving data at speeds of up to 3Gigabits per second,
with a clear roadmap to 12Gbs in the future. A SAS connection can support four SAS wide lanes or
potentially 4 x 300MB/s per connection.
Increased availability
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another benefit of SAS-based storage subsystems is the native dual port
capability of each SAS drive, providing a redundant path to each drive in the event of a controller
failover. In addition, since each drive is on a separate point-to-point connection, losing a drive
connection only affects a single drive. Compare this to parallel SCSI in which losing a bus affects all the
drives on the bus.
Greater flexibility
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probably the best known benefit of SAS for external storage is its configuration
flexibility. A SATA drive can be plugged into a SAS mid-plane without any modifications or changes, the
controller and the software will seamlessly support a system with a mix of SATA and SAS disk drives.
Why choose a SAS interface DAT drive?
Why choose a SAS interface DAT drive?Why choose a SAS interface DAT drive?
Why choose a SAS interface DAT drive?
The above benefits of SAS explain why system manufacturers, including HP, are rapidly moving to SAS
interfaces to connect internal peripherals. Customers purchasing a HP DAT Tape Drive with native SAS
interface can benefit from:
Wide availability of SAS ports - SAS interfaces are now widely available on servers and systems.
Furthermore with server I/O bus technology moving from PCI-X to PCI-Express (PCI-e), customers may
find it difficult to obtain Parallel SCSI host bus adapters for the PCI-Express bus.
Investment protection - this new generation interface is supported by a robust multi-vendor roadmap and
already boasts a clear future out to 12Gb/s.
Installing SAS tape drives
Installing SAS tape drivesInstalling SAS tape drives
Installing SAS tape drives
HP StorageWorks SAS tape drives are available as internal and external models. Both models are
supplied with a special split cable that allows you to connect to an internal port (if available) on the
embedded SAS controller inside the server. While connection via the split cable provides the most cost-
effective way of connecting the tape drive to an HP ProLiant server, this will require a clear understanding
of your server's current SAS configuration before installing.
For the most up-to-date information about recommended SAS HBAs and supported cabling
configurations with your make and model of server, always refer to
http://www.hp.com/storage/SPOCK
.
A full installation guide is included with the product.
Native USB
Native USBNative USB
Native USB
The USB (Universal Systems Bus) interface was conceived out of a need to simplify computer peripheral
device connection. It has been so successful that the majority of computer systems and servers shipped
today offer multiple native USB 2.0 ports.
HP is the first company to develop a native USB DDS/DAT tape drive. Where other "USB tape drives" rely
QuickSpecs
HP StorageWorks DAT Tape Drives
HP StorageWorks DAT Tape DrivesHP StorageWorks DAT Tape Drives
HP StorageWorks DAT Tape Drives
Product Highlights
DA - 11883 Worldwide — Version 35 — April 29, 2011
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