Dieser Protected Item-Typ sichert eine Microsoft SQL Server-Datenbank. Die zugrunde liegende Technologie ist VDI und ist mit SQL Server 2005 und höher kompatibel.
No data is spooled to the local disk. As per the "Program Output" type, no progress bar or ETA appears during a Microsoft SQL Server backup.
Databases are backed up one-at-a-time. If you require point-in-time consistency across multiple databases, please use the "Application-Aware Writer" option instead.
Details zur Verbindung
Bei der Einrichtung des neuen MSSQL-geschützten Elements sollten Sie die Verbindungsdetails angeben, bevor Sie Datenbanken auswählen. eazyBackup stellt nur eine Verbindung zu SQL Server her, der auf dem lokalen Rechner läuft. Sie müssen den Instanznamen eingeben oder das Feld leer lassen, um die Standardinstanz zu verwenden.

Adresse
The address is always localhost, but EazyBackup does not use TCP addresses or TCP ports to connect to SQL Server instances. eazyBackup uses "Shared Memory" to connect to SQL Server instances.
EazyBackup's use of "Shared Memory" connection does improves performance for some operations, at the expense of only working on the local machine; but eazyBackup's use of VDI requires it to run against the local machine anyway.
If you encounter issues connecting to your SQL Server, you must ensure that "Shared Memory protocol" is enabled in SQL Server Configuration Manager.
Öffnen Sie Sql Server Configuration Manager -> SQL Server Network Configuration -> Protocols -> Shared Memory -> Enable

Treiber
OLE DB and ODBC are data access methods that use pluggable "drivers" / "providers" for connecting to databases like SQL Server. The following drivers for OLE DB / ODBC support SQL Server:
EazyBackup wurde im Laufe der Zeit aufgerüstet, um zusätzliche Treiber zu unterstützen:
EazyBackup Version |
Bevorzugter Fahrer |
Ausweichfahrer(innen) |
>= 18.9.6, >= 18.8.6 |
MSOLEDBSQL |
SQLNCLI11, SQLOLEDB |
Sie können Ihre installierten Treiber auflisten
Authentifizierung
EazyBackup allows you to connect to SQL Server using either Windows authentication (running as the backup service account - usually NT SERVICE\backup.delegate or SYSTEM), or native SQL Server authentication.
- Wenn Sie die Windows-Authentifizierung verwenden, erfolgt die Verbindung über das Konto des Sicherungsdienstes.
- Sie können diesem Windows-Benutzerkonto die Rechte eines Systemadministrators in SQL Server zuweisen.
- Wenn Sie die SQL Server-Authentifizierung verwenden, müssen Sie einen gültigen Benutzernamen und ein Passwort eingeben, um eine Verbindung zu SQL Server herzustellen.
Impersonation ist derzeit nicht für die Windows-Authentifizierung verfügbar. Zukünftige Versionen von eazyBackup werden Impersonation für die Windows-Authentifizierung unterstützen.

Mehrere Instanzen
EazyBackup supports backing up multiple instances from SQL Server. You can select an instance for backup, by entering the instance name in the "Instance Name" field. Leave this field blank to use the default instance.
EazyBackup Backup listet automatisch die verfügbaren Instanzen zur Auswahl im Dropdown-Menü auf.
Sicherungsmodus
Standardmäßig führt EazyBackup einen vollständigen Datenbankexport aus SQL Server durch und verwendet dann sein eigenes Deduplizierungssystem, um die gespeicherten/geladenen Daten zu optimieren.
This is the "Full (copy only)" option. It is equivalent to the BACKUP WITH COPY_ONLY T-SQL statement.
Da EazyBackup Voll-Image-Backups effizient deduplizieren kann, ist es normalerweise ausreichend, nur Voll-Backups von SQL Server in eazyBackup zu erstellen.

Basis-Bilder
You have the option to use SQL Server's own differential/log backup system. This may be more efficient, but it does require additional administrative work, and complicates the process of restoring data.
The SQL Server maintains one single point-in-time reference, from which it can produce differential backups and/or log-based backups. When you take a new "Full (base image)" backup, the point-in-time reference is moved forward, so that any future differential and/or log-based backups are based on the last base-image backup.
To use SQL Server's own differential/log backup system, you must create multiple Protected Items (each with a different schedule) in order to capture both a base image and a differential/log backups. By creating multiple Protected Items, you can individually schedule, report-on, and manage retention policies for both base and differential/log backups.
If you are using EazyBackup alongside another product for SQL server backups, you should ensure that only one product is taking base-image backups. Otherwise, it's possible that a chain of differential/log backups would be incomplete.
Unterschiedliche
EazyBackup can use SQL Server's own systems for differential backup. In this mode, you can regularly make "differential base" backups, and then a series of small "differential increment" backups, each containing the difference from the last base backup. These operations are equivalent to the BACKUP and BACKUP WITH DIFFERENTIAL T-SQL statements respectively. eazyBackup will still deduplicate multiple base backups that are sent to the same Storage Vault.
This is the "Differential increment" option.
Protokoll
You can opt to use SQL Server's own systems for log backup. In this mode, you must periodically take full (base image) backups, and regularly take log backups.
Sie haben die Wahl, ob Sie die Log Truncation anwenden wollen. Diese Operationen sind äquivalent zu den T-SQL-Anweisungen BACKUP LOG und BACKUP LOG WITH NO_TRUNCATE. eazyBackup wird weiterhin alle Daten deduplizieren, die an denselben Storage Vault gesendet werden.
To use SQL Server's own log system, you must create multiple Protected Items (each with a different schedule) in order to capture both full and log backups.
This mode requires that the database Recovery Model is set to "Full" or "Bulk Logged" in SQL Server. For more information, please see https://msdn.microsoft.com/en-us/library/ms189275.aspx .
Empfehlungen
In general, we would recommend using the default "Full" backup technique.
SQL Server's native differential/log systems may be used if you experience performance issues with the default mode, however, you must ensure that
- Keine anderen Sicherungssysteme setzen die letzte Basissicherung zurück;
- Wenn das Differenzial/Protokoll erfolgreich gesichert wurde, bedeutet dies, dass auch die Basis kürzlich erfolgreich gesichert wurde;
- Basis-Backups werden regelmäßig durchgeführt, um den Differenzial-Overhead zu minimieren; und
- Die Aufbewahrung wird sorgfältig verwaltet, um sicherzustellen, dass eine Wiederherstellung möglich ist.
Alternative Möglichkeiten zur Sicherung von Microsoft SQL Server
You can use the "Application-Aware Writer" type to back up SQL Server using the VSS Writer. Compared to eazyBackup's standard VDI approach, this option enables more detailed progress information, and can take a consistent point-in-time snapshot of multiple databases at once; but offers more limited control over SQL Server features such as log truncation. The resulting files also must be restored in a different way.
You can use eazyBackup's "Commands" feature to call osql/sqlcmd to run a T-SQL BACKUP statement against the database, and then back up the resulting spooled file with the "Files and Folders" type. This option requires more temporary disk space than the built-in system above.
You can use the "Files and Folders" type to back up individual database files if the "Take filesystem snapshot" option is selected. However, the "Files and Folders" backup type does not invoke SQL Server's VSS writer, so this would (at best) produce a "crash-consistent" backup and is nicht empfohlen.