Re-enabling disk mirroring

Select the device icon, then select File | Properties.
Select the Mirror tab.
Check the Mirror Device box.
Click Apply. Adaptive Server re-enables mirroring with the mirror device specified in the Mirror Path box.

If you permanently disabled a mirror device for which the physical device is an operating system file, you cannot re-enable mirroring using the same physical file name unless you first manually delete the operating system file for the disabled mirror device.