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Re: Reuse of old ReadyNAS formatted disks

MartinEb
Guide

Reuse of old ReadyNAS formatted disks

I recently upraded my disks from 4 TB to 8 TB models to have more space on the drive.

When I try to use the old 4 TB drives as normal external USB drives, I see only 1.8 TB of disk size.
Where are the other 2.2 TB? And how can I access to all of the 4 TB data?
The disks are WD Red drives.
Thanks for any idea.

Model: ReadyNAS-OS6|, RN51600|ReadyNAS 516 6-Bay Diskless
Message 1 of 4

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schumaku
Guru

Re: Reuse of old ReadyNAS formatted disks

Martin,

 

Erase the partitions of these HDDs on a "generic" Linux system (careful, use the correct physical device name!), like...

 

dd if=/dev/zero of=/dev/sdz bs=512 count=1

 

...or use the Windows disk manager to drop any existing partitions.

 

If this does not mitigate, it's well possible you use compareably old USB enclosures which are limited to 2 TB storage block devices only.

 

-Kurt

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Message 2 of 4

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schumaku
Guru

Re: Reuse of old ReadyNAS formatted disks

Martin,

 

Erase the partitions of these HDDs on a "generic" Linux system (careful, use the correct physical device name!), like...

 

dd if=/dev/zero of=/dev/sdz bs=512 count=1

 

...or use the Windows disk manager to drop any existing partitions.

 

If this does not mitigate, it's well possible you use compareably old USB enclosures which are limited to 2 TB storage block devices only.

 

-Kurt

Message 2 of 4
Sandshark
Sensei

Re: Reuse of old ReadyNAS formatted disks

My guess is an enclosure limited to 2TB drives.  A Windows machine normally doesn't see a NAS formatted drive at all except in Disk Manager.  If it does show as 1.8TB in Disk Manager, then the issue is the enclosure.

Message 3 of 4
MartinEb
Guide

Re: Reuse of old ReadyNAS formatted disks

Thanks for the tip!
I thing that my enclosure is outdated. I try to organise an new enclosure, that supports more than just 2 GB drives.

 

regards

Martin

Message 4 of 4
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