...well, 17 hours later, swapping out the two disks and replacing with a pair of larger ones, it's all back as it was.
Mirror rebuilt and data retained, then the image expanded to fit the bigger disks. A few "iffy" moments but generally ok.
i) Having rebuilt, but still using the original size, the process invites you to expand the RAID array into the extra space by selecting "Expand", but the button to do so wasn't on the taskbar!. After a few choice words, and about 15 seconds, the taskbar magically refreshed itself and it was there!
ii) It did come up at the end in an initialising state (which, if continued would destroy all the rebuilding and the data. The quick and easy (but far from intuitive) trick noted above resolved that - instead of letting it go looking on the web for updates to its firmware itself, which starts the full reset process, you manually update the current firmware with a (the same version) locally held copy. It reboots after installation and, hey presto, it is now absolutely fine, realising it doesn't need to initialise. If I hadn't found a tip-off on this, things would have been very frustrating.
Because of the need to hot-swap and keep powered-up, the unit was out of its case for the duration - a bit of a nuisance, but it worked.
....and throughout, as it should be, the device was fully functional on the network, albeit most of the time from a singe-disc, not a mirrored pair. (I minimised activity anyway, but in the midst of it it updated one of my streaming applications (twice, different versions! - bug in the first update I think.))
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| Whoops, there goes the NAS new |
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tyrednemotional |
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1 Feb 23 18:55 |
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 Whoops, there goes the NAS new |
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Kevin |
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1 Feb 23 19:38 |
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  Whoops, there goes the NAS new |
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tyrednemotional |
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1 Feb 23 19:44 |
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 Whoops, there goes the NAS new |
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Kevin |
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1 Feb 23 20:13 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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1 Feb 23 20:54 |
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| Whoops, there goes the NAS new |
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Kevin |
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1 Feb 23 21:28 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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1 Feb 23 21:31 |
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| Whoops, there goes the NAS new |
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Zero |
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1 Feb 23 20:17 |
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| Whoops, there goes the NAS new |
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Kevin |
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1 Feb 23 20:30 |
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| Whoops, there goes the NAS new |
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smokie |
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2 Feb 23 00:05 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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2 Feb 23 08:59 |
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| Whoops, there goes the NAS new |
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smokie |
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2 Feb 23 10:13 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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2 Feb 23 15:55 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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3 Feb 23 09:22 |
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| Whoops, there goes the NAS new |
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smokie |
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3 Feb 23 09:38 |
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| Whoops, there goes the NAS new |
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Zero |
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3 Feb 23 10:00 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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3 Feb 23 10:24 |
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| Whoops, there goes the NAS new |
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Kevin |
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5 Feb 23 13:00 |
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| Whoops, there goes the NAS new |
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tyrednemotional |
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5 Feb 23 14:01 |
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| Another NAS Question new |
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Bromptonaut |
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14 Apr 23 21:15 |
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| Another NAS Question new |
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tyrednemotional |
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14 Apr 23 21:46 |
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| Another NAS Question new |
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Kevin |
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14 Apr 23 23:23 |
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| Another NAS Question new |
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Bromptonaut |
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15 Apr 23 13:44 |
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| Another NAS Question new |
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Kevin |
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15 Apr 23 14:12 |
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| Another NAS Question new |
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Bromptonaut |
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15 Apr 23 14:18 |
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| Another NAS Question new |
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Kevin |
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15 Apr 23 14:42 |
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| Another NAS Question new |
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tyrednemotional |
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15 Apr 23 17:17 |
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| Another NAS Question new |
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Biggles |
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15 Apr 23 18:31 |
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