by alg0rith on 10/29/19, 8:51 AM with 1 comments
by ggm on 10/29/19, 9:59 AM
Unbeknownst to us, the building wasn't adequately earthed and we had a 48v ground potential across data frames either end of the building which must have existed day #1 from the 1960s, but with limited cabling and inter machineroom comms never been noticed. Amongst other remediation we had to bury a huge ground plane spike in the garden and tie the all the raised floor tiles into a functional groundplane with wire to fix things.