Re: A hard lesson...
I had a client running on very ancient H/W (e.g. the processors were Pentiums and the biggest disks were 4Gb but a lot of each). The disks were mirrored on a belt and braces principle. They were mirrored at the controllers and each mirrored pair was mirrored in the database. There were, of course, database and OS backups (tested by being restored as part of the the BC plan). There were rumours of disks failing to restart so it was still a stressful time when the installation had to be powered down for a rewire. There was even some debate as to whether it could be kept running on an emergency supply. In the event it all went smoothly and the system came back up.
When the entire business resides on your storage system, whatever that might be, an element of paranoia about every single aspect of it isn't a failing; nor is it a luxury. It's an absolute essential.
Biting the hand that feeds IT
