Data infrastructure speeds: Current 2014 vs. expected 2016
25% 48% 14% 10%
Source: BSRIA Data center survey
Point-to-point versus structured cabling, installed 10G links
segment, which also has a higher use of
ToR architecture,” BSRIA pointed out.
In total the survey yielded even results,
with 50 percent using point-to-point
and the other 50 percent using struc-
tured cabling. But looking at the enter-
prise data center segment in particular,
Other data in BSRIA’s survey back up
the assertion by Siemon’s Maguire and
Conroy that switch-to-server links are
outgrowing 10G. “The study highlighted
quite significant levels of 1G and 10G
both in switch-to-switch and switch-
to-server links and expected progres-
sion to 40G and 100G planned for 2016,”
BSRIA noted. In switch-to-server links,
speeds up to 10G combined to account
for 92 percent of connections, but BSRIA
expected the number to drop to 73 per-
cent by 2016.
In other recent analysis, BSRIA discussed trends in network and cabling
using for large data centers (which it
defines as having more than 500 servers and more than 20,000 square feet of
floor space), medium data centers (100
to 500 servers and 2,000 to 19,999 square
feet), and small data centers ( 25 to 100
servers and 500 to 1,999 square feet).
Large data centers have a high uptake
of ToR architecture, but also implement
EoR, MoR and centralized switching,
BSRIA said. It added that in these environments, Category 8 cabling has the
potential to replace point-to-point direct attachments.
Medium data centers also have a
high uptake of ToR, and their fiber use
is increasing. And small data centers/
computer rooms mainly use copper cabling. Many small and medium data
centers use singlemode fiber from the
entrance to the main distribution area
to support telecommunications services,
The dynamics of connection speeds,
architectures and cabling media are
some of the factors that make data center administration a continual challenge
and balancing act. Faster speeds often
drive change, but efficient administration and the ease of anticipated future
upgrades also play a role. u
Patrick McLaughlin is our chief editor.
The data on top, from 2014, shows 3 percent of switch-to-server connections
exceeded 10-Gbit/sec speeds. BSRIA projected that by 2016 that number would
grow to 24 percent.
Point-to-point connections and structured cabling were in a dead heat when
BSRIA examined 10G links in enterprise and colocation data centers. Further
detail shows that point-to-point is more prevalent in colocation facilities than in
enterprise data centers.