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Forum Discussion
ReadyNAS Ultra 4 with 4TB
I have the ReadyNAS Ultra 4, have been running 2x2TB for 3 years, and I recently threw in a 4TB drive in slot 3 (HGST Ultrastar 7K4000 HUS724040ALE640). It recognized fine and did the expansion, howe...
You need a second 4TB disk installed to be able to use additional space. X-RAID2 volumes can only be expanded when redundant space can be added.
Please also note a couple of expansion limits:
1. You cannot expand by more than 8TB over the life of the volume. If the volume capacity was 1.8TB when you last did a factory default (wipes all data, settings, everything) you cannot expand past 9.8TB
2. You cannot expand past 16TB. To have a volume capacity >16TB you would need to do a factory default (wipes all data, settings, everything) with the drives in place.
Please also note a couple of expansion limits:
1. You cannot expand by more than 8TB over the life of the volume. If the volume capacity was 1.8TB when you last did a factory default (wipes all data, settings, everything) you cannot expand past 9.8TB
2. You cannot expand past 16TB. To have a volume capacity >16TB you would need to do a factory default (wipes all data, settings, everything) with the drives in place.
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