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Forum Discussion
ReadyNAS NV+ - External Drive Not Recognized
I bought a new Seagate 5TB external drive for backup of my ReadyNAS. I originally attached it and formatted it FAT32 from the NAS, but it didn't recognize the full 5TB. So, I formated it NTFS on my Windows computer and maximized the partition to the full 5 TB and again plugged into my NAS. Also, I have another 3TB drive that I have formatted NTFS that is working fine (I want to create two backups).
I'm having these problems:
1. The new drive appears as a USB drive, but the size shows as 2048GB with no file system (even though formatted NTFS in Windows 10).
2. When I try to do a backup, it says there is no drive present (probably because there no recognized file system even though I formatted it NTFS (which is not a choice to format on the NAS).
What am I doing wrong? How do I get the new 5TB drive to be recognized on the NAS?
Thanks, Steve
8 Replies
The NV+ can only handle drives with GPT formatting, which has a max size of 2TiB. That's closer to 100% of the 3TB drive, so maybe you aren't noticing it there.
What is GPT formatting?
The current drive that works is showing:
File System: NTFS
Size: 2794 GB
Used: 2487 GB
So, it appears that it indeed does support a larger size, right?
Steve
GPT is is a partition type, below the level of the file system. It stands for GUID Partition Table. It was introduced to overcome the 2TiB limitation of the MBR (Master Boot Record) partiton method. The normal limit for MBR partitions is 2TiB (about 2.2TB), and your working drive does seem to have more space than that, for which I have no explanation.
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