The system debug log level is used to identify the severity and importance of a log. eReplication can divide the system debug log into the following 4 levels in descending order of severity: error, warning, operation and debugging.

In the Oceanstor 9000 system, if a node is offline for 2 days due to a power module failure, and then returns to normal again, if the administrator does not manually restore the data of the node, the system will automatically change the data during the offline period. Update to the node that is back to normal.

Which is the basal protocol used by SANs for I/O processing?

For a storage pool you can change the hot spare policy in a later stage.

What are the deduplication classifications? (Multiple choice)