06-11-2014, 04:44 PM
Further update on the outage today. The incident is a joke to me, four layers of redundancy on power supply, resulted in hours long outage on standard trigger? 
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Source of incident identified Following preliminary investigations and analysis, the outage has been traced to a malfunction in the uninterruptible power supply (UPS) systems deployed at the SGX data centre. Power is supplied to the data centre from two separate substations. These sources are in turn connected to
individual UPS systems providing four layers of redundancy. Resulting from a momentary fluctuation in power supply from the substations, the UPS systems
switched to its internal power source. However, the internal power source in both UPS systems malfunctioned.
http://infopub.sgx.com/FileOpen/20141106...eID=323107

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Source of incident identified Following preliminary investigations and analysis, the outage has been traced to a malfunction in the uninterruptible power supply (UPS) systems deployed at the SGX data centre. Power is supplied to the data centre from two separate substations. These sources are in turn connected to
individual UPS systems providing four layers of redundancy. Resulting from a momentary fluctuation in power supply from the substations, the UPS systems
switched to its internal power source. However, the internal power source in both UPS systems malfunctioned.
http://infopub.sgx.com/FileOpen/20141106...eID=323107
(05-11-2014, 08:58 PM)CityFarmer Wrote:(05-11-2014, 08:40 PM)CityFarmer Wrote: The outage is serious indeed, and wonder the reason behind. So far no announcement on the cause yet, as far as I can search.
Latest update from CNA, was around 730pm.
http://www.channelnewsasia.com/news/busi...54644.html
SGX announcement on the outage, around 820pm today. The reason is malfunction in power supply(?). I was anticipating a reason of cyber-attack.
A mission-critical system outage due to power supply failure, isn't an reasonable excuse...![]()
http://infopub.sgx.com/FileOpen/20141105...eID=323055
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