A mixed restore is a cold restore of an initial group of storage spaces followed by one or more warm restores of the remaining storage spaces. The initial set of storage spaces you restore in the cold restore must include all critical storage spaces in the server. To the extent that you do not restore all storage spaces during the initial cold restore and avoid the time necessary to restore them, you can bring the server online faster than if you were to perform a cold restore of the entire server. You can then restore the remaining storage spaces in one or more warm restores.
The storage spaces that you do not restore during the cold restore are not available until after you restore them during a warm restore, although they might not have been damaged by the failure. While a mixed restore makes the critical data available sooner, the complete restore takes longer because the logical logs are restored and replayed several times, once for the initial cold restore and once for each subsequent warm restore.
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