• Keep cables away from sharp edges or metal corners.
• When bundling cables, do not pinch or constrict the cables.
• Do not use zip ties to bundle cables. Instead, use Velcro hook-and-loop
ties that do not have hard edges and which you can remove without
cutting.
• Never bundle network cables with power cables. If network and power
cables are not bundled separately, electromagnetic interference (EMI) can
affect your data stream.
• If you run cables from overhead supports or from below a raised floor,
include vertical distances when calculating necessary cable lengths.
• If you use overhead cable supports:
○ Verify that your supports are anchored adequately to withstand the
weight of bundled cables.
○ Gravity can stretch and damage cables over time. Therefore, do not
allow cables to sag through gaps in your supports.
○ Place drop points in your supports that permit cables to reach racks
without bending or pulling.
Cabling full-width modules
When cabling full-width modules, such as NAS modules as shown in the
following figure, route the cables horizontally, so that they do not interfere
when replacing a module.
96 Data and power cables
Hitachi Virtual Storage Platform G400, G600 Hardware Reference Guide
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