Hp D3000 Disk Enclosures Manuel d'utilisateur télécharger pdf (Page 32)

Connecting SAS cables and power cords

Overview

Connecting cables includes the following steps:

1. Reading the “Cabling best practices” Page 32.

2. “Connecting SAS cables to the server or controller enclosure” Page 33.

3. “Connecting SAS cables to cascaded disk enclosures” Page 34.

4. “Connecting power cords” Page 35.

IMPORTANT: The following illustrations demonstrate connecting a disk enclosure to a server with

an installed controller. In your environment, the disk enclosure might connect to a controller

enclosure, which then connects to the host or network. Cabling restrictions may exist for the different

installation environments. For more information, see the user documents for your controller or

controller enclosure.

NOTE: For additional examples of cabling scenarios, see (page 41).

Cabling best practices

• Use supported SAS cables and power cords. A variety of cables and cable lengths are

supported for use with this disk enclosure. For more information, see the QuickSpecs for the

disk enclosure, available on the D3000 website.

• Use the shortest possible cable between devices. Shorter cables reduce the possibility of signal

degradation that might occur over longer distances. In addition, shorter cables are easier to

manage and route along the back of the rack.

• Gather cables in the rear of the disk enclosure to ensure that the cabling in the back of the

rack system does not interfere with system operation or maintenance. Bind cables loosely with

cable ties and route the cables out of the way, along the side of the rack. When the cables

are tied together and routed down the side of the rack, system components and indicators

are easily visible and accessible.

• Bind and support cables in a manner that eliminates stress on connectors and tight bends of

the cables. This prevents damage to the connector and cable, and ensures that the connector

remains fully seated in the port.

• Attach a label near both ends of each cable to identify the device connected to that cable.

Include the device, device name, port, or other useful information.

• Use colored markers to color code both ends of each cable, to help visually identify a particular

cable without having to read or locate the label.

• In multipath configurations, you might want to loosely bind the matching pair of cables

connecting devices.

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Hp D3000 Disk Enclosures Manuel d'utilisateur Page 32