OS 6 Drive upgrade

FYI, I took the liberty of changing the title of your post from "OS 5 Drive upgrade" to "OS 6 Drive upgrade".

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JonBServerGeek wrote:

I seem to recall on the Duos, it mattered which drive you pulled first

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Actually not.

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JonBServerGeek wrote:

On the presumption that I pull a drive, and then successfully install its larger replacement -- Will I need to perform any action on the admin page to trigger the expansion???

 

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Netgear does recommend making sure you have an up-to-date backup before you begin (and I concur).  The volume is unprotected during the resync.

If XRAID is enabled, then it should expand automatically.  You can check by looking for a green stripe on the XRAID control on the volume tab.  If the stripe is there, then XRAID is enabled.

The system won't resync if the new disk is formatted - if that happens, you can select it on the volume tab, and format it in the NAS.  That should trigger the resync.

The first resync will just recreate the RAID mirror on the replacement disk (syncing 6 TB).  When you replace the second disk, it should resync twice.  First it recreates the mirror (again syncing 6 TB).  Then it resyncs the remaining 4 TB - expanding the volume.

I always recommend hot-swapping the disks, as then the NAS sees what you are doing, and doesn't have to figure out what changed while the NAS was shut down.