Enable FastResync option panel options
Use this wizard panel to enable FastResync for a snapshot volume that you want to create.
Related information
Table: Enable FastResync option panel options
| Field | Description |
|---|---|
| FastResync (DCO) mirror | Select a number from the drop-down list to specify the number of data change object (DCO) mirrors that you want to create. When the data volume is updated, these updates are retained in the form of logs on the DCO mirrors. |
| DCO region size (KB) | Enter the size for the DCO mirror that you want to create. The default value is 64 kilobytes. |
| Enable DRL (Dirty region logging) | Select an option from the drop-down list to enable the Dirty region logging (DRL). DRL expedites the recovery of mirrored volumes after |
| a system crash. The available options are: | |
| - On : Select this option to enable DRL. | |
| - Off : Select this option to disable DRL. | |
| - Sequential : Select this option to configure the sequential DRL. This option is used for volumes such as those that are used for database replay logs for which data are written in a sequential manner. The sequential DRL limits the number of dirty regions in a volume and helps faster recovery of data. | |
| Select DCO disks (By default Volume Manager decides disks to be used) | Select the disks that you want to keep as DCO disks. Select the disks from the list of disks. |
See Add mirror - Options.