Thanks Richard, I think my brain died sometime in the last few months!

That makes sense : the second disk's copy of the database is kept up
to date all the time and there is a one off saving of the OS/LM image
on the second disk (and presumably when the OS/LM is updated it is
saved again then).  Otherwise when a primary disk dies, they have to
load on all the software, LM software and patches etc - which can take
several hours.

Regards, Sheelagh
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Sheelagh Treweek                   Email: sheelagh.treweek AT oucs.ox.ac DOT uk
Sheelagh Treweek                   Email: sheelagh.treweek AT oucs.ox.ac DOT uk
Oxford University Computing Services           Tel:   +44 (0)1865 273205
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