On Wed, 2016-03-30 at 11:25 +0100, Karanbir Singh wrote:
On Wednesday February 24th, at 6pm UTC time, the DC hosting some of the CentOS equipments used for various roles had suffered from multiple electricity power outages. The facility was completely dark for just under 2 hrs, and we were able to start recovering services by 8pm UTC. By midnight we had most services restored, by 2:00AM UTC Feb 25th we had all services restored.
No emergency diesel generators ?
I live in an area, having an unpublicised nationally strategic telecoms hub, with 9+ discrete data centres within 1.5 km of a power station (linked by dedicated underground cable to another power station) yet each data centre has at least one diesel generator.
Resilience seems to be their motto.
On Sat, April 2, 2016 11:07 am, Always Learning wrote:
On Wed, 2016-03-30 at 11:25 +0100, Karanbir Singh wrote:
On Wednesday February 24th, at 6pm UTC time, the DC hosting some of the CentOS equipments used for various roles had suffered from multiple electricity power outages. The facility was completely dark for just under 2 hrs, and we were able to start recovering services by 8pm UTC. By midnight we had most services restored, by 2:00AM UTC Feb 25th we had all services restored.
No emergency diesel generators ?
Somebody has to donate that...
Valeri
I live in an area, having an unpublicised nationally strategic telecoms hub, with 9+ discrete data centres within 1.5 km of a power station (linked by dedicated underground cable to another power station) yet each data centre has at least one diesel generator.
Resilience seems to be their motto.
-- Regards,
Paul. England, EU. England's place is in the European Union.
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++
On 02/04/16 17:07, Always Learning wrote:
On Wed, 2016-03-30 at 11:25 +0100, Karanbir Singh wrote:
On Wednesday February 24th, at 6pm UTC time, the DC hosting some of the CentOS equipments used for various roles had suffered from multiple electricity power outages. The facility was completely dark for just under 2 hrs, and we were able to start recovering services by 8pm UTC. By midnight we had most services restored, by 2:00AM UTC Feb 25th we had all services restored.
No emergency diesel generators ?
I believe the second fail-back operation is what caused most of the issues, this was failing back from the backup source to the mains once they were live again.
regards
-
Always Learning -
Karanbir Singh -
Valeri Galtsev