Synology CS407e User Manual

Replacing Larger Internal HDD 

When the internal HDD storage is run out, Administrator can follow the steps to 
replace a larger HDD and keep using the original data: 

Basic and RAID 0* Volume 

1. 

Replace the original internal HDD with a larger one. 

2. 

Connect the original HDD to the USB/eSATA port. 

3. 

Copy the data from the original HDD to the new HDD. 

4. 

Remove the original HDD. 

RAID 1 and RAID 5 Volume* 

1. 

Replace the smallest hard disk of the volume with a larger one. 

2. 

After system has detected the new hard disk, click “Expand” on the 
“Storage > Volume” page of the Web management UI. 

3. 

Repeat steps above until you finish replacing all hard disks you want to 
change. 

Adding a HDD to a RAID 5 Volume* 

You can expand the storage capacity of the RAID 5 volume by adding a spare 
HDD to the RAID 5 volume., Please refer to the online Help on the "Storage > 
Volume" page of the Web Management UI for detailed instructions. 

* Supported on specific models only. Please refer to the product 

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