Compaq Q1587A - StorageWorks DAT 160 Internal Tape Drive Rychlé specifikace stáhnout pdf (Strana 11)

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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. Point-to-point also means that each device has the ability to connect multiple

initiators, allowing peripherals to be shared between several servers.

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

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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.

Increased flexibility

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SAS has the ability to connect multiple initiators, allowing the tape drive to be

shared between several servers.

Investment protection

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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/go/connect

. 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

on a USB converter, HP's USB interface is fully integrated with the drive and uses the SCSI command set

within the USB payload. The benefit of this implementation is that it gives the drive full SCSI functionality

and the flexibility of USB without the additional cost of a converter.

By offering native USB 2.0 DAT drives, HP aims to provide customers with a number of benefits:

Greater usability

Plug-and-play connectivity - the system automatically detects and configures the tape drive.

The DAT drive is installed and ready to backup in less than 60 seconds.

Microsoft fully supports USB devices natively in their operating systems providing robust, secure

QuickSpecs

HP StorageWorks Tape Drives

HP StorageWorks Tape DrivesHP StorageWorks Tape Drives

HP StorageWorks Tape Drives

Product Highlights

DA - 11883 Worldwide — Version 26 — November 12, 2007

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QuickSpecs 1

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