nanog mailing list archives

Few notices about Moscow, M9-IX, and last outage


From: "Alexei Roudnev" <alex () relcom net>
Date: Fri, 27 May 2005 11:19:36 -0700


1) M9 have UPS power for a few days. BUT - it is 60V DC power. Only a very
few routers or switches are able to use it.

2) Power outages in Moscow data centers are very rare event, because most
have 2 - 3 different power inputs. 24 May failure was caused mainly
by operator's error, who reconnected power system back after few
transformers broke, and caused chained failure.

3) As a result of this (I never saw power failure in Relcom data center for
15 years of working there), generators are not common there.

4) M9-IX is not the only entrance to Moscow, but it was the main entrance.
As I know, few other entrance nodes was not affected.



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