Over three consecutive days, three of our servers have lost their partition tables. Two of the machines were running linux and the third was a windows machine and all of these servers are on an internal network.
It seems unlikely to be the work of a virus or code being executed but I cannot think what else it could be. It's very odd and I cannot work out a connection.
Does any one know what might be causing this? Could this be something to do with power surges?
Update
It seems that the problem does indeed stem from the use of machinery upstairs. After 3 more failures and logging of time, it appears to coincide with the times the machinery was used upstairs. Thanks for your answers.
Mhmmmm...
You suggest power issues yourself. No UPS I presume ?
Baring more detailed information some guesswork:
You are not stating how bad the damage is. 3x on each of the servers or 3 servers each affected once on different days ?
If the damage is strictly limited to sector 0 (==partition tables) any sort of power-surge or other external random factor is extremely unlikely. The damage would most likely be more random than that: Corruption all over the disks.
A virus would appear more likely but you say Windows and Linux are bot affected. That is too odd for a virus.
Are you absolutely certain nobody can tamper with the systems ? Through malice or ignorance. The proverbial janitor plugging in a vacuum-cleaner or floor-scrubbing machine on the same circuit ?