- Backup exec deduplication update#
- Backup exec deduplication full#
The following best practices help you to use the Deduplication Option effectively:
Restricting SQL to use 85% to 90% of total physical memory can prevent a situation in which backup rates may be reduced to 10% of the expected rate due to memory restrictions. This option can be set for each SQL instance by selecting Properties > Memory.
Use Microsoft SQL Server Management Studio to restrict SQL's use of physical memory. This option allows data to be deduplicated in the most effective way. Set the option Use snapshot technology as a backup job property for the SQL backup job. The following best practices apply to using deduplication with SQL: The tech note is available from the following link: Review the tech note titled "Getting the most out of the Deduplication Option and Deduplication Storage Folders" for more details about using deduplication disk storage devices. Backup exec deduplication full#
This method is preferred over performing full backups using the deduplication writer because this method is easier to control.
Perform a duplicate backup job so that you have redundant backups of the data in your deduplication disk storage device. SDR recovery is not supported for deduplication disk storage devices. Do not use Backup Exec's Simplified Disaster Recovery (SDR) to recover data from local deduplication disk storage devices. Exclude the deduplication disk storage device from your antivirus scans. The passwords must be kept synchronized to ensure that the deduplication disk storage device is accessible after services are restarted, and to facilitate recovery of the deduplication disk storage device after a system failure. This account is known as the "User 1" account when you use the spauser.exe utility to view a list of user names that are associated with the deduplication disk storage device. Backup exec deduplication update#
You must use the spauser.exe utility to update the password for the additional user account. However, if you change the credentials for the Backup Exec logon account, the credentials for the additional user account are not changed automatically. When you specify a logon account for a deduplication disk storage device, an additional user account is created for the deduplication components with the same user name and password.
Use the spauser.exe utility if you have to change the password for the Backup Exec logon account that you specified when you created a deduplication storage folder. Use a dedicated logon account when creating a deduplication disk storage device. In the backup selection list, the Backup Exec Deduplication Storage node is located under the User Data node under Shadow Copy Components. Create this job separately from the backup job that you use to protect the rest of your system. Perform regular backups of the deduplication disk storage device to removable media. Up to 32 TB of data is supported.Įxample: Use the following equation to calculate the required amount of RAM for 10 TB of data: Note: This minimum requirement is in addition to the minimum requirements for Backup Exec.įor more than 5 TB of data, use the following calculation to determine the required amount of RAM: 1.5 GB x N, where N equals the number of TB of storage in the deduplicated volume. The minimum amount of RAM is 8 GB, which supports up to 5 TB of deduplicated data. Ensure that the Backup Exec server on which you create a deduplication disk storage device has the appropriate amount of RAM. Symantec recommends that you use a dynamic volume that can grow as needed. 
Ensure that the volume you use for a deduplication disk storage device has enough space to hold data from multiple servers. Use a dedicated volume for a deduplication disk storage device. The following best practices apply to deduplication disk storage devices: For more information about the Deduplication Option, see the Backup Exec 2012 Administrator's Guide. Best practices include tips and recommendations to help you effectively use the Backup Exec Deduplication Option.
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