Synology DS411SLIM manual For one-bay models, For Basic or RAID 0 on models with two or more bays

Synology DiskStation User's Guide

Based on DSM 3.1

2Click Edit.

3Enter a number in the Size (GB) field, or click Max to automatically fill in the number of the available size on the Disk Group.

Note: The number must be larger than the original volume capacity.

4Click OK.

Expand a Volume or Disk Group by Replacing with Larger Disks

When the internal HDD storage runs out of space, you can follow the steps below to replace a larger HDD without losing the original data.

For one-bay models:

1Turn off the Synology DiskStation.

2Replace the internal hard drive with a larger one.

3Turn on the Synology DiskStation.

4Reinstall the system. See "Reinstall Synology DiskStation" on Page 215 for more information.

5Connect the replaced hard drive to the USB or eSATA port.

6Copy the data from the replaced hard drive to the new hard drive.

7Remove the replaced hard drive.

For Basic or RAID 0 on models with two or more bays:

1Back up all data stored on the Synology DiskStation.

2Turn off the Synology DiskStation.

3Replace the internal hard drives with larger ones.

4Turn on the Synology DiskStation

5Reinstall the system. See "Reinstall Synology DiskStation" on Page 215 for more information.

6Copy the backup data to the new volume or Disk Group.

For RAID 1 and RAID 5, RAID 5+Spare, and RAID 6:

1Turn off the Synology DiskStation (skip this step for models that support disk hot swapping).

2Replace the first internal hard drive with a larger hard drive.

3Turn on the Synology DiskStation and repair the volume or Disk Group. See "Repair a Volume" on Page 48 for more information.

4Repeat step 1 to 3 until all internal hard drives are replaced with larger hard drives.

5The system will expand the volume or Disk Group automatically.

Note:

Before replacing the spare disk of a RAID 5+Spare volume or Disk Group, you need to click Manage, click Change RAID type, and then follow the wizard to change the volume or Disk Group.

When the system is removing a volume or Disk Group, all enabled services on other volumes will be temporarily stopped. When the volume or Disk Group is removed successfully, those services will be resumed.

You can only remove the hard drive when the volume or Disk Group is in Normal status; otherwise it will cause data loss. If the volume or Disk Group is in Degraded status, please repair the volume or Disk Group before replacing it.

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Chapter 4: Manage Storage Space