Can I upgrade Disk Size from 2TB to 6TB on ReadyNas 102?

[Logic_Gate]

Hello,

Recently one of the HDD failed on my ReadyNas 102.

NAS is RAID 1 (mirror)

I have 2TB on each bay (Seagate Barracuda st2000dm001).

I was hoping to upgrade disk volume since I am replacing one of the HDD

my questions are:

1. Can I upgrade to 6TB HDD and have the NAS copy data from 2TB HDD to 6TB HDD?

2. If yes then, can I take the 2TB HDD out and install another 6TB HDD? This way I will have same HDD on both bay.

3. Since i have Seagate presently in the NAS, can I use WD Reds for the upgrades? I know RAID 1 allows different brand and different speed drives but not sure about Netgear devices.

Any help would greatly be appreciated. Thanks in advance. 

[siigna]

1. Yes.  Once you put in the 6TB the NAS will resync the array. You won't see any space increase.
2. Once the resync has finished you can remove the remaining 2TB and replace it with a 6TB.  Space increases.
3. You can mix drives in a ReadyNAS, just try and keep the speed and cache the same.