resilver

verb

1. (transitive)To silver again.

   “It often becomes necessary to resilver the small mirror used in a microscope, sextant, or other instrument of precision.”

2. (transitive)To synchronize the mirror disk of the RAID array with the master disk.

   “To get back to our RAID 0 +1 configuration, disk volume A will be “resilvered” up to disk B, which runs at the current point in time.”