Synology DiskStation User Manual page 49

Change RAID Type
If you have created a Basic, RAID 1 or RAID 5 volume or Disk Group, you could add a new drive to the
Synology DiskStation, and then use Storage Manager to change the RAID type.
Available RAID type change includes:
 Basic to RAID 1, RAID 5 or RAID 5+Spare
 RAID 1 to RAID 5 or RAID 5+Spare
 Add mirror disk to RAID 1
 RAID 5 to RAID 5+Spare or RAID 6
 RAID 5+Spare to RAID 6
To change the RAID type:
1 Click the
2 Select the volume or Disk Group you want to change.
3 Click Manage.
4 Choose
Note:
 The status of the volume or Disk Group must be normal.
 The status of the added drive must be
 If you want to change the RAID type, enough number of hard drives for the new type is required. See
"Synology DiskStation Supported RAID Types" on Page 43 for the required amount of disks for the RAID type.
 The size of the replacement hard drive must be larger than the smallest disk size of the volume or Disk Group.
Expand a Volume or Disk Group
You can expand the storage capacity of a volume or Disk Group.
Expand a Volume by Changing Volume Size
If your volume is created by allocating partial space on a Disk Group, you can do the following to expand the
volume.
To expand a volume by changing volume size:
1 Under the
49 Chapter 4: Manage Storage Space
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Volume or Disk Group tab.
Change RAID type and follow the wizard to complete the setup.
Initialized
Volume tab, click the volume you want to expand.
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Synology DiskStation User's Guide
or Not Initialized.
Based on DSM 3.1