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Solved
Ready NAS 104: Replacing a 2TB drive with a 4TB one?
I spotted an error message on my Ready NAS Admin page this afternoon and so am investigating replacing one of the drives. This was the message: -------------------- "Disk: Detected increasing real...
KRT-UK wrote:
I've read the manual and the replacement looks simple enough to do. I have X-RAID turned on and so I'm reasonably confident that hot-switching the old 2TB drive out for a new one won't mean the loss of any data.
Correct. Though we do recommend updating (or making) a backup first. If a second drive fails during the resync process, you will lose all the data.
KRT-UK wrote:
What if I replace all of the drives over a period of time with 4TB drives? Can the software cope with that?
Yes. Currently you have 6 TB of storage (reported as 5.45 TiB). There would be no increase when you hot-swap the first drive. But you'd see a 2 TB increase for each drive after that - ending up with 12 TB total. The capacity rule is "sum the drives and subtract the smallest".
Note that the capacity rule assumes that you are either
- replacing a drive with one of the same size
- replacing a drive with one that is greater or equal to the largest drive currently installed.
KRT-UK wrote:
I've read the manual and the replacement looks simple enough to do. I have X-RAID turned on and so I'm reasonably confident that hot-switching the old 2TB drive out for a new one won't mean the loss of any data.
Correct. Though we do recommend updating (or making) a backup first. If a second drive fails during the resync process, you will lose all the data.
KRT-UK wrote:
What if I replace all of the drives over a period of time with 4TB drives? Can the software cope with that?
Yes. Currently you have 6 TB of storage (reported as 5.45 TiB). There would be no increase when you hot-swap the first drive. But you'd see a 2 TB increase for each drive after that - ending up with 12 TB total. The capacity rule is "sum the drives and subtract the smallest".
Note that the capacity rule assumes that you are either
- replacing a drive with one of the same size
- replacing a drive with one that is greater or equal to the largest drive currently installed.
Thank you!
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