Parameters for controlling the level of parallelism and memory used when scanning the CopyStorm database for records to restore.
Candidate Scan Parameter
Candidate Scan Batch Size
The number of records to process in a single batch when looking for candidates to restore (10 to 1000). Larger numbers can increase restore performance but will cause CopyStorm/Restore to use more memory.
Candidate Scan Parallelism
The level of parallelism to allow when scanning for restore candidates. Increased parallelism can increase restore performance but will cause CopyStorm/Restore to use more memory.
Available values are:
Minimal: Scan 1 table at a time, 1 batch of referenced records at a time, and wait until a table is fully scanned before scanning the next table.
Medium (Default): Scan 5 tables at a time, 5 batches of referenced records at a time, and start scanning referenced tables when there are 3 batches of records awaiting a scan.
High: Scan 25 tables at a time, 25 batches of referenced records at a time, and start scanning referenced tables as soon as there is a batch of records awaiting a scan.
Custom: Directly set scanning parallelism parameters.
Parallel Candidate Scans
The maximum number of tables that can be scanned for records simultaneously.
Parallel Reference Scans
The maximum number of queries that can run simultaneously when scanning for related records. This limit is Per-Candidate-Scan. For example, if “Parallel Candidate Scans” is set to 2, and “Parallel Reference Scans” is set to 3, there may be up to 6 related record queries running simultaneously.