Earlier last week our monitoring tool flagged up a potentially serious error – one of our clients email server’s had flagged up a possible hard disk error.

After further investigation we pin pointed the problem to a failed hard drive. Each server we install is specified with a fault tolerance system called RAID – including this client.

Less than 4 hours later Dell had made a site visit; the hard drive had been replaced, all without having to shut down the server or disrupting email services.

Having RAID in a server can reduce downtime in the event of hard drive failure, and reducing the impact on end-users.