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Forum Discussion
MartinEb
Jan 28, 2021Guide
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.
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
3 Replies
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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
- SandsharkSensei
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.
- MartinEbGuide
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I thing that my enclosure is outdated.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
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