Adding second drive without formatting other drive?

I have added a second drive to my WD My Cloud EX2. Currently only my first drive is detected by the system.

my question is: if I go to Storage -> RAID -> Change RAID mode -> Create new Volume, does my first drive also gets formatted?

There is already a lot of data on the first drive and I would prefer to keep them when adding a second drive. The first drive is formatted as JBOD. I want the second one to be a JBOD drive with no RAID too.

Thanks in advance.

Hello and welcome to the WD community.

If you insert another drive you should be able to get to add the new drive as a JBOD without having to erase the information on the first drive. On this case if you are need further help i would recommend contacting support on this matter:
http://support.wdc.com/country/index.asp?lang=en22

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