Connecting Internal Cables; Internal Cabling Guidelines; Application Scenarios; Guidelines - H3C UniServer R3950 G6 Manual

Connecting internal cables

Internal cabling guidelines

Application scenarios

Internal server cabling diagram can be used in the following scenarios:
•
To guide cable connections after expanding or replacing components.
•
To guide cable reseating if cables are loose or disconnected.
•
To guide cable replacement if cable protective sleeves are damaged or cables are faulty.

Guidelines

Follow these guidelines when connecting the internal cables:
•
Do not route the cables above the removable components, such as DIMMs.
•
Route the internal cables without hindering installation or removal of other components or
hindering other internal components.
•
Route the cables neat and tidy in their own fixed spaces. Make sure the cables will not be
squeezed or scratched by other internal components.
•
Do not pull the connectors when routing the cables.
•
Do not use a cable tie to bundle an excessive number of cables.
•
Appropriately bind long cables. Coil and use cable ties to secure unused cables.
•
Connect the drive cables until they click into place.
•
Remove the cap (if any) from the target cable connector before connecting a cable to it.

Connecting drive cables

Drive cables include SAS/SATA data cables, NVMe data cables, power cords, and AUX cables. The
server supports multiple
configurations as examples to help users understand the cabling schemes for drives. For cabling
schemes for other drive configurations, contact Technical Support.
NOTE:
Compared with the AUX cables and power cords, more data cables (including SAS/SATA and
NVMe data cables) are required and the cabling methods are more complicated. This section
provides code information for data cables and you can use the information to identify cables and
their connection methods.
•
12LFF (8 SAS/SATA + 4 UniBay) drives at the front
•
12LFF drives at the front + 2SFF UniBay drives at the rear
•
12LFF (4 SAS/SATA + 8 UniBay, LSI Expander) drives at the front
•
8SFF UniBay+8SFF UniBay+8SFF UniBay drives at the front
•
25SFF (17 SAS/SATA + 8 UniBay) drives at the front
drive configurations. This section takes the following typical drive
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