The Question is:
How can potential loss of updates to user file global sections on power failure
be prevented? Is it true that a feature exists that flushes such updates to disk
using an internal battery backup? If so, is this feature standard or an option?
How can it be enabled?
The Answer is :
Consider acquiring an uninterruptable power supply (UPS). Use the
UPS to power the system, the storage enclosures, and the other critical
system components. Options include sufficient capability to ride-over
the power outtage, long enough to ride-over until a generator can come
on-line, or long enough to permit an orderly system shutdown.
Certain VAX and Alpha systems (and certain StorageWorks shelves) do offer
an optional integrated battery backup. (Without specifics of the local
system configuration, it is impossible to say if your particular system
offers this option.)