Everhart, Glenn From: Steve Spires [sspires1@ford.com] Sent: Friday, July 10, 1998 7:07 AM To: Info-VAX@Mvb.Saic.Com Subject: Re: NT Meltdowns/Disasters; Documented Examples needed Further ti this; NatWest Bank has denied that the switching of Achi Racov from chief information technology officer to board adviser on technology resulted from the public failure of its branch systems. In June 300 NatWest cash machines were taken offline as a result of problems with Microsoft's Windows NT operating system. The job change was planned months ago, a bank spokesman said. Racov was closely associated with the bank's decision to back NT. Jim Mann has become director of group operations and technology in the fourth IT management re-structuring which the bank has carried out in the past seven years. Other banks are also using Windows NT but NatWest is believed to have made an exceptionally big commitment to the software. Around 50,000 workstations at 2,000 UK sites are expected to be dependent on it. NT scalability problems began to surface in 1996. IT staff at NatWest have identified a bug in Windows NT and an overambitious software roll-out as the main culprits behind the failure of its retail banking platform. A bug in the 3.51 version of Windows NT used by NatWest caused the handle leak that led to 400 branches and 300 cash machines being taken offline a fortnight ago. The bug, which has been acknowledged by Microsoft, relates to the Local Security Authority component in NT, which is responsible for giving users secure access to the branch network. Details of the bug can be found in the Microsoft KnowledgeBase at support.microsoft.com. The main symptom is that NT runs out of network connections, preventing access to the network. Microsoft has not publicly released a fix for the bug, although staff at NatWest said the software giant has written a fix for the bank. The problems at NatWest began on the evening of 23 June when the bank attempted to roll out a software patch for a client/server application on the retail banking platform. Initially the roll-out was scheduled for 100 sites, but IT staff at the bank said that the number had been increased to 300. This, combined with the bug in NT 3.51, generated a traffic jam over the branch network the following day. "We ran out of connections to the servers," said one of the bank's IT staff. NatWest has about 35,000 NT workstations and plans to roll out a further 15,000. Steve Spires From (requires registering - free) Arne Vajhøj wrote: > > > the NatWest fiasco in the UK, cited in other threads was a > > fine example; methinks there ought to be a few more similar > > examples out there, ie huge cost overrruns, and lesser > > reilability/performance. etc. etc. > > I have read it too. > > It would be nice with some details. What was the problem > exactly ? How did the story end ? etc.etc. > > Arne