Help Center> Dedicated Distributed Storage Service> FAQ> Will Data in the DSS Disk Be Lost When the DSS Disk Is Detached?
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Will Data in the DSS Disk Be Lost When the DSS Disk Is Detached?

Not necessarily.

To prevent data loss when you detach a DSS disk, perform the following operations:

  1. Stop the ECS to which the to-be-detached DSS disk has been attached.
  2. After the ECS has been stopped, detach the DSS disk.