SQL/MX 2.x Installation and Management Guide (G06.24+, H06.03+)

Performing Recovery Operations
HP NonStop SQL/MX Installation and Management Guide—523723-004
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START DISK and STOP DISK
state. The other mirrored set continues the active database, but the inactive mirrors
also contain a set of consistent SQL/MX objects.
You can also use STOP DISK to bring down the active database and START DISK to
bring up the saved database in a database swapping technique. This technique might
be useful for testing scenarios. As long as you bring each set of mirrors down and then
up together, each copy of the database continues to be consistent.