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Computing Systems

Computing Systems

Informatics Computing Staff jottings

Category: system event

SATABeast2 disk failures

Yesterday evening, our SAN storage device satabeast2, suffered 2 disk failures. We can cope with 1 disk failure (RAID5), but following that first disk failure there is a period of time, while the redundancy is restored, that should a second disk fail then data will be lost. This is what happened yesterday. There is a […]

3 October 2014 0

Unexpected file server problems on the 19th of June

In the late afternoon of Wednesday 19th of June, around 4:50pm, there was an unexpected glitch on the Informatics SAN (Storage Area Network). This caused some of our AFS storage to go offline for several hours. What follows is a recap of the event, and what we did to recover from it. Background First a […]

18 July 2013 0

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