Operating system support

For supported operating systems, see the latest DS4000 Storage Manager host software readme file and the IBM DS4000 series products interoperability matrix at the following Web site for additional host operating system support:

www-1.ibm.com/servers/storage/disk/ds4000/interop-matrix.html

See “Finding DS4000 readme files” on page xxvii to learn how to access the

DS4000 readme files on the Web.

Fibre channel defined

Fibre channel technology is outlined in the SCSI-3 Fibre Channel Protocol (SCSI-FCP) standard. Fibre channel is a high-speed data transport technology that is used for mass storage and networking.

Using a fibre channel arbitrated loop (FC-AL), more than 100 fibre-channel devices can be supported, compared to 15 small computer system interface (SCSI) devices. The fibre channel connection speed from the storage subsystem to storage expansion enclosures is either 2 Gbps or 4 Gbps depending on the type of enclosures to which the storage subsystem is connected, allowing data transfer rates up to 400 MBps half-duplex and 800 MBps full-duplex on optical interfaces.

SATA defined

The Serial Advanced Technology Attachment (SATA) interface offers increased data rate performance over Parallel Advanced Technology Attachment (ATA), while maintaining the benefits of ATA. SATA is designed to overcome the performance barriers that have been forecasted for current parallel technologies while maintaining the cost-efficiency of Parallel ATA. SATA specifications allow for thinner, more flexible cables, and lower pin counts. It also enables easier, more flexible cable routing management and the use of smaller connectors than is possible with the existing Parallel ATA technology.

The Serial ATA Working Group introduced the first SATA specification, Serial ATA 1.0, in 2001 (http://www.serialata.org).

Inventory checklist

After you unpack the DS4700 Express, verify that you have the following items.

Note: Depending on your DS4700 Express order, your shipping box might contain additional materials not listed in the following checklist. Review the inventory checklist included in the DS4700 Express shipping box for any additional parts, and use that checklist in combination with the following information.

vHardware

Blank trays (16) (Your storage subsystem might come with up to 16 E-DDMs.)

RAID controllers (2)

AC power supply and fan units (2) (Models 70A, 70H, 72A, and 72H only)

DC power supply and fan units (2) (Models 70S, 70T, 72S, and 72T only)

Battery units (2)

Power cables (2 rack jumper line cords) (Models 70A, 70H, 72A, and 72H only)

DC power jumper cables (2) (Models 70S, 70T, 72S, and 72T only)

Chapter 1. Introduction 3

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IBM DS4700 manual Operating system support, Fibre channel defined, Sata defined, Inventory checklist, Hardware