Dell PowerVault DL4000, Руководство пользователя

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Option Description
Interval Weekday — To protect data on a specific time interval (for example, every 15
minutes), select the Interval , and then:
• To customize when to protect data during peak times, you can select a
Start Time , End Time , and an Interval from the drop-down menus.
• To protect data during off-peak times, select the Protection interval
during off-peak times check box, and then select an interval for protection
from the drop-down menu.
Weekends — To protect data during weekends, select the Protection interval
during weekends check box, and then select an interval from the drop-down
menu.
NOTE: If the SQL or Exchange databases and logs are on different
volumes, the volumes must belong to one protection group.
Daily To protect data on a daily basis, select the Daily option, and then and in the
Protection Time drop-down menu, select a time to start protecting data.
No Protection To remove protection from this volume, select the No Protection option.
If you want to apply these custom settings to all the volumes on this machine, select Apply to All
Volumes .
5. When you have made all necessary changes, click OK .
Modifying transfer settings
You can modify the settings to manage the data transfer processes for a protected machine. The transfer
settings described in this section are agent-level settings. To affect transfer at the core level, see
Modifying The Transfer Queue Settings .
CAUTION: Changing transfer setting could have dramatic effects on your environment. Before
modifying transfer settings values, refer to the Transfer Performance Tuning Guide in the Dell
AppAssure knowledge base https://support.software.dell.com/appassure/kb.
There are three types of transfers:
Snapshots The transfer that backs up the data on your protected machine.
VM Export A type of transfer that creates a virtual machine with all of the backup information
and parameters as specified by the schedule defined for protecting the machine.
Rollback A process that restores backup information on a protected machine.
Data transfer involves the transmission of a volume of data along a network from Agent machines to the
Core. In the case of replication, transfer also occurs from the originating or source Core to the target
Core.
Data transfer can be optimized for your system through certain performance option settings. These
settings control data bandwidth usage during the process of backing up agent machines, performing VM
export, or performing a rollback. Some factors that affect data transfer performance are:
• Number of concurrent agent data transfers
• Number of concurrent data streams
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