Database Migration Service는 업로드한 백업 파일의 모든 데이터를 Cloud Storage 버킷으로 마이그레이션하지만 소스 데이터베이스의 일부 기능은 SQL Server용 Cloud SQL에서 사용할 수 없습니다. Database Migration Service 마이그레이션 작업은 지원되지 않는 기능에 해당하는 데이터를 복원하지 않지만 대상 SQL Server용 Cloud SQL 인스턴스에서 로그에 경고나 오류가 발생할 수 있습니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-09-05(UTC)"],[[["\u003cp\u003eDatabase Migration Service migrates data from uploaded backup files to Cloud SQL for SQL Server, but not all source database features may be supported.\u003c/p\u003e\n"],["\u003cp\u003eA single migration job can handle up to 20 databases, with only one job allowed per destination Cloud SQL for SQL Server instance.\u003c/p\u003e\n"],["\u003cp\u003eBackup files can be a maximum of 5 TB each, and if the database size exceeds 5TB, striping into smaller files is allowed, but must remain under the maximum file size.\u003c/p\u003e\n"],["\u003cp\u003eThe source SQL Server instance must not use the simple recovery model.\u003c/p\u003e\n"],["\u003cp\u003eThe migration service does not migrate the SQL Server \u003ccode\u003emaster\u003c/code\u003e database, user information, or jobs that are not linked to a specific database.\u003c/p\u003e\n"]]],[],null,["# Known limitations\n\nDatabase Migration Service migrates all data from the backup files you upload to the\nCloud Storage bucket, but not all features present in your source database\nmight be available in Cloud SQL for SQL Server. Database Migration Service migration jobs\ndon't restore data that falls under an unsupported feature, but your destination\nCloud SQL for SQL Server instance might produce warnings or errors in the\nlogs.\n\nBefore you choose to migrate your SQL Server databases to\nCloud SQL for SQL Server, make sure you consider\n[SQL Server features unavailable for Cloud SQL](/sql/docs/sqlserver/features#general_sql_server_features_unavailable_for)\nin Cloud SQL for SQL Server documentation.\n| **Note:** You can also use Google Cloud Migration Center to discover possible limitations or gaps in feature support for your specific scenario. See [Discover and import databases](/migration-center/docs/discover-and-import-databases) in the Migration Center documentation.\n\nAdditional known limitations for homogeneous SQL Server migrations to\nCloud SQL for SQL Server with Database Migration Service include the following:\n\n- Database Migration Service can migrate up to a maximum of 20 databases per migration\n job.\n\n- You can run only one migration job for a single destination Cloud SQL for SQL Server\n instance.\n\n- Your backup files can have a maximum size of 5 TB.\n\n- You can stripe your full backup file into smaller files if your database size\n exceeds 5 TB. Each stripe can have a maximum size of 5 TB.\n\n- You can use encrypted backup and transaction log files for your migration.\n If you want to use encrypted backup files, you must encrypt\n **every backup file** (full, differential, transaction log) you use for a\n specific database included in your migration.\n See\n [Use encrypted backups](/database-migration/docs/sqlserver/backup-file-encryption).\n\n- Your source SQL Server instance can't use the **simple recovery model** .\n For more information on recovery models, see\n See [Recovery Models (SQL Server)](https://learn.microsoft.com/en-us/sql/relational-databases/backup-restore/recovery-models-sql-server) in Microsoft documentation.\n\n- Database Migration Service doesn't migrate the [SQL Server `master` database](https://learn.microsoft.com/en-us/sql/relational-databases/databases/master-database),\n user information (such as user logins), or jobs that aren't a part of a specific\n database.\n\n - [Point-in-time recovery (PITR)](/sql/docs/sqlserver/backup-recovery/pitr) can't be enabled on your destination Cloud SQL instance during migration. You can enable this feature after the migration is complete."]]