ReadyNas Duo and Seagate ST3000DM001 3T

The Duo v1 (runs RAIDiator 4.1.x or earlier) does not support drives larger than 2TB in capacity.

Why does it not give me 2T then, rather than 746GB?

It sounds as if you may have a Duo (v1) which will not support drives larger than 2TB. It would give you 2TB if they were supported but not fully usable. Unfortunately the 3TB drives require a formatting type (GPID) that the Duo cannot do. It only works with MBR drives.

You have several options on how to proceed. However, to find out which one is available, a few more facts are needed.

1. How long have you had the Duo?

2. If you have had it a while and had other drives in the unit, how did you remove them? a) With the unit turned off or b) with the unit on, replacing them one at a time with the 3TB drives. (I am concerned about retrieving any data that may have been on the unit).

I've had the Duo v1 for a while but never really used it... I stored stuff locally on my media center instead... until the HD died and decided to use the NAS.

The Nas was fitted with 1x 1.5TB drive. (That was hardly used).

I removed the 1.5TB drive from the NAS, when it was switched off and then fitted the 2x3TB. Did a factory reset as well.
Only 746GB detected.

What's the best thing to do? Get a ReadyNas Duo V2 or better?

Either fall back to using 2TB or lower capacity drives or get a new NAS. Do note that the RAID format of the Duo/NV+ (ARM) and the Ultra/Pro (x86) is different to that of the Duo v1. So you would need to do a factory reset in the ARM or x86 NAS to wipe the 3TB disks.

will get a duo V2

Thanks!

what would you guys recommend for a 4 bay NAS that supports 3TB HDDs?

Rosbif wrote:
what would you guys recommend for a 4 bay NAS that supports 3TB HDDs?

Personally I like the ultra and pro products. Though of course the NV+ V2 should also be on the list.