Adding a new disk as a new volume in Synology

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I am a big fan of Synology Network Storage Devices. I have the Synology DS1511+ and the Synology DX510 Expansion.

In the former, I used up all the 5 slots and in the latter, I used up 2 slots. I have a spare hard disk of 320GB sitting around and I decided I want to set this up in the Synology as a Single Volume on its own. No RAID. Nothing. The purpose is to use it as a sort of “transfer” hard disk between the different PCs/Macs at home as well as most importantly, as a place for internet downloads (e.g BT, NZB, Direct Downloads). I dont mind if this volume crashed or have a lot of READ/WRITES to it….

So here’s the whole PAINLESS process.. Synology really rocks..

Start by putting in the hard disk (PHYSICALLY) into a spare slot. I chose the slot furthest away from the 2 existing hard disks in the DX510. By the way, I did this hot swap method. Which means I did not shut down the Synology but just open the hard disk case and put it right in. All the time, the Synology was running.

Then you can see it recognized by Synology in Storage Manager (DSM) but is not initialized. You can also see that I have two volumes already running.

Added New Disk into Synology

Click on the CREATE button on the top left corner and then choose CUSTOM

Adding a New Volume to Synology

I am creating a NEW SINGLE VOLUME

Single Volume in Synology

Next screen is COMFORT screen πŸ™‚ It tells me that I am okay. I can choose that ONE SINGLE DISK (instead of all the existing disks and creating a mess which I am good at)..

Choose the ONE DISK to create a VOLUME in Synology

And NO protection (You have no choice anyway.. you have a single disk for a single volume.. what do you expect.. :))

No Protection for ONE DISK in Synology

At next screen, I just choose the CHECKING.. 320GB should not take very long (in the end, it took about 4 hours..)

Check Hard Disk

And the creating of the 3rd Volume has started ! πŸ™‚
Volume Created but Checking in Progress

Going back to HDD Management, you can see that now i have officially 3 volumes in the Synology

3 Volumes in Synology

Finally it completes !!

3 Volumes in Synology Completed

So how do I use this new 3rd Volume ? Well, go to SHARED FOLDER configuration in DSM and set up a new Shared Folder and linked it to the VOLUME 3. I called the SHARE FOLDER, Scratch

Setting up a new Shared Folder in Synology DSM

And then in apps like Download Station of Synology, I tell the app to download to this new Shared Folder. In Windows and Mac, I also have this new shared folder set up as a network drive and even my dBpoweramp Music Converter (dMC) has its default “Processed” folder for completed music conversion (from FLAC to MP3) set to this folder…

Setting Download Folder in Synology Download Station

There will quite a few bits of READ and WRITE to this hard disk due to my new found interest in seedbox and Bukit Timah (.. never mind, if you dont know what that is..)


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  1. THANK YOU! This made it very easy for me to set up the second disk on my Synonogy and keep it separate from the first disk

  2. Worked for DSM 6 – Thank you! Gave me the confidence when adding a spare drive (didn’t want to ruin existing data on other drives.) I really appreciate your time in creating the post. To really know, you must teach!

  3. New 4-Bay D416 with 2 x 4TB Raid disks. Spare bays needed to be occupied with basic drives. Your thorough and easy-to-follow ‘recipe’ got me out of a major hole. All went exactly as you said and I remain very grateful. Thank you!

  4. Works for a empty volume 1.8TB on a 3x3TB diskstation. Gives me a lot of scratch space as VOLUME2. Thank you.

  5. Thanks. Been trying to figure this out for the last 1 week. Am surprised that Synology does not address this criteria for RAID Basic. They only talk about RAID 1, 5, 6 ….

  6. Great post and plenty of detail. It got me thinking… I currently have a 4 bay Synology NAS (DS412+). In it are two 3TB disks setup in RAID 1. I am nearly full up, so want to add two more disks.

    1. Do I select RAID 1 again for a new volume (e.g. Volume 2)?
    2. Can I plug them in as you did without switching the NAS off or affecting the existing Volume 1?
    3. Do I have to insert the same size disks as before, or could I insert two 4TB’s or two 6TB disks?

    • (1) you are creating a new volume. How u want to create this new volume is up to u. It should not be dependent on the first volume. It can be RAID 1 or two RAID 0
      (2) Yes.
      (3) It can be any size.

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