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Synology DiskStation User's Guide
Based on DSM 3.1
48 Chapter 4: Manage Storage Space
Remove a Volume or Disk Group
1 Click the Volume or Disk Group tab.
2 Select the volume or Disk Group you want to remove.
3 Click Remove and follow the wizard to remove the volume or Disk Group.
Note: Data stored on the volume or Disk Group will be deleted after you remove the volume or Disk Group. Be
careful using this option.
Repair a Volume or Disk Group
The repair function is available for RAID 1, RAID 10, RAID 5, RAID 5+Spare, RAID 6, and SHR volumes or Disk
Groups. Depending on your RAID types, When one or two of the hard drives in the volume or Disk Group fails, it
will be in the degraded mode. You can repair the volume or Disk Group by replacing the crashed disk(s) to keep
the data on the volume or Disk Group protected.
Note: Synology DiskStation provides the hot swapping function, allowing you to replace the crashed disk without
shutting down your Synology DiskStation.
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To identify and replace the crashed disk:
1 Identify the crashed disk by doing one of the following:
Check the hard drive icons in Storage Manager. The icon of the crashed disk will appear with an
exclamation mark.
Go to Information > Status, and check the status column in the Hard disk(s) section. (See "Check System
Information" on Page 206 for more information.)
Check the LED indicators on your DiskStation. (See "Appendix B: LED Indication Tables" on Page 226 for
more information.)
2 Pull out the hard drive tray to replace the crashed disk with a new one.
Note: The replacement hard drive size must be larger or equal to the size of the smallest disk in the volume or Disk
Group.
To repair a volume or Disk Group:
1 Click the Volume or Disk Group tab.
2 Click Manage.
3 Select Repair and follow the wizard to repair the volume or Disk Group.
Note:
The status of the repairing hard drive must be Initialized or Not Initialized.
If your volume is created by allocating partial space on a Disk Group (see "Create a Volume by Allocating Partial
Space on a Disk Group" on Page 46 for more information), you need to repair its Disk Group.
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This is supported on specific models only. See "Appendix A: Synology DiskStation Specifications" on Page 219 for more
information.