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Swapping discs in a pair of ReadyNAS's's
I have a pair of ReadyNAS: I have a ReadyNAS Duo V1 with two mirrored 1TB drives in X-RAID and a ReadyNAS 102 with two 2TB drives configured as RAID 1. My 2TB 102 is nearly full and one of the drive...
Digsy wrote:
What I would like to do is this: Fit a pair of 4TB drives to the 102, thus freeing up the newer 2TB drives which I wouldlike to put in the Duo V1.
I assume I can hot swap the first 4TB drive into the 102 and let the volume rebuild, then swap in the second 4TB drive to complete the upgrade.
Correct.
Digsy wrote:
What I am less sure about is what happens if I simply then put one of the 2TB drives (with data on it) into the Duo. Is there an order I should do the sawp in (slot 1, then slot two for example) so that the Duo knows which volume to keep. Or do I need to wipe the 2TB disks somehow first? If so, how can I do this, as I gather that a normal IWndows PC cannot read them once they are formetted for the Duo.
Replace the failing disk first (hot-swapping as you did with the RN102). There is no need to wipe them.
Thanks :) So when I replace the failing disk in the Duo with the good 2TB disk that use to be in my 102, what will happen? Will the Duo capacity instantly jump to 2TB or will it stay at 1TB until I put in the 2nd 2TB disk?
Digsy wrote:
Thanks :) So when I replace the failing disk in the Duo with the good 2TB disk that use to be in my 102, what will happen? Will the Duo capacity instantly jump to 2TB or will it stay at 1TB until I put in the 2nd 2TB disk?
It stays at 1 TB. The volume is resynced (restoring redundancy). If the other drive in the duo fails during the resync, then you lose the data (which is why I advised you to replace the failing drive first).
When you replace the second disk, the volume will expand to 2 TB. That happens in two steps (first the original 1 TB volume is resynced, then the second TB is added). Usually there is reboot needed before the second step. The NAS should prompt for it, but keep an eye for that when you get there.
Just fitted the second disk to the Duo. Its all gone as you said it would so thanks! :)
Just some oddness from my backups on the 102 after I swapped the first 4TB disk in but easily fixed and I am putting that down to my upgrading the firmware on both NAS's before doing the swap.
Hi Digsy,
Great! I hope all goes well after the update. Just mark this thread closed or resolved once done.
Kind regards,
BrianL
NETGEAR Community Team
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