Add disk to QNap Raid 5

amicoderozer asked:

I have a QNap TS-569 Pro configured with Raid 5 of 4 hard drives of 1 Terabyte each.
It has 5 disk slots and I want to increase the size of the Raid of another Terabyte.

Reading the manual seem pretty easy operation, but I have a doubt. After adding the new hard drive to the raid, the QNap will rebuild the raid.
During this time (usually it’s pretty long), can I access the data? Or would it be unavailable until the synchronization process finishes?

My answer:


You can use the RAID array while it is being reshaped, but access will be slower than normal.


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