Try and minimize the workload on the RAID 5 while it's resyncing because a heavy load will slow down the rebuild. Right-click the missing disk, which no longer has any associated volume, and select Remove Disk. Your RAID 5 volume will now go into a Resyncing state, which can take a long time-it has to repopulate the data/parity information on the new disk to make the RAID 5 volume fault tolerant again.Your new disk will be listed to be used as the replacement.Scroll down to the disk that's missing for your RAID 5 set, right-click it, and select Repair Volume.Ensure that only your new disk is selected to convert and click OK.Once it's initialized, right-click the disk and select Convert to Dynamic Disk.Your replacement disk will be found and you'll be prompted to initialize the disk.Access the Disk Management node of Server Manager.Replace the dead disk with a new on in the server.mdadm if you want for example to convert a RAID from level 1 to 5 or 6. If you need to replace a disk (like I just did after one of my Western Digital Black drives died after six months), follow the procedure below: openmediavault uses linux software RAID driver (MD) and the mdadm utility to. If you lose a single disk from the set, no data is lost thanks to the data and parity information on the remaining disks, which can be used to calculate the data on the lost disk. If you're using software RAID 5, you have three or more dynamic disks configured as a single fault-tolerant volume that data and parity information is stored on.
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