Level 0 Backup Problem - Server Dies

I wonder if anyone has had a similar problem to this one, or can suggest somewhere to start looking for a solution: We're running IDS 7.30 UC8 on an NCR S40 Model 3438 (Unix version 3.02) on one of our Y2K test boxes. Each time we try a level zero archive using ontape -s -L 0, it starts off ok, but then after three quarters of an hour it brings the entire server to a halt, you can't perform any commands except a 'pwd' without the session hanging (CTRL-C won't even interrupt it). The machine is still 'pingable', but the only way out is to reboot it. No messages appear in the online log file after the 'Level 0 Archive Started' message, so we've got no idea of any cause. NCR have checked the box on more than one occasion and have given it a clean bill of health (ie no apparent disk problems, operating system problems etc). Anyone any ideas ?? Thanks Simon Bondsfield Informix DBA Equitas Ltd "WorldSecure Server <equitas.co.uk>" made the following annotations on 09/03/99 10:31:28 ------------------------------------------------------------------------------ [INFO] -- Access Manager: ********************************************************************** Equitas Limited 33 St Mary Axe, London, EC3A 8LL, UK NOTICE: This message is intended only for use by the named addressee and may contain privileged and/or confidential information. If you are not the named addressee you should not disseminate, copy or take any action in reliance on it. If you have received this message in error please notify postmaster@equitas.co.uk and delete the message and any attachments accompanying it immediately. Registered in England: Registered No. 3173352 Registered address above ********************************************************************** ==============================================================================