{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the snapshot synchronization mode and how to use it?","a":"Configure backup devices: First, you need to configure one or more backup devices for  the database. These devices can be hard disks, tapes, or other storage media."}]}],"pr":"6e77286f5a993d5c2a42f719efb668c9d3dbffba0060a681dc598a66cf3ede40"}