Issue with hard drive upgrade and xraid

leo037:

Thanks for the fresh logs.  It is clear that the resync didn't result in adding disk 6 to md127.

Though I cannot tell if it created the partition, since she replaced the WDC disk with an HGST 10 TB model before she got the logs.

May 30 16:10:05 Datastore2 readynasd[3766]: Disk Model:WDC  WUH721816ALE6L4 Serial:2BKLVLET was removed from Channel 6 of the head unit.
May 30 16:10:10 Datastore2 readynasd[3766]: Volume data health changed from Redundant to Degraded.
May 30 16:16:19 Datastore2 readynasd[3766]: Disk Model:WDC  WUH721816ALE6L4 Serial:2BKLVLET was added to Channel 6 of the head unit.
May 30 16:16:46 Datastore2 readynasd[3766]: Resyncing started for Volume data.
May 31 01:00:47 Datastore2 readynasd[3766]: Volume data is Degraded.
Jun 01 01:00:23 Datastore2 readynasd[3766]: Volume data is Degraded.
Jun 01 04:08:20 Datastore2 readynasd[3766]: Volume data is resynced.
Jun 01 04:08:20 Datastore2 readynasd[3766]: Volume data health changed from Degraded to Redundant.
Jun 01 04:08:23 Datastore2 readynasd[3766]: Disk in channel 6 (Internal) changed state from RESYNC to ONLINE.
Jun 01 15:45:34 Datastore2 readynasd[3766]: Disk Model:WDC  WUH721816ALE6L4 Serial:2BKLVLET was removed from Channel 6 of the head unit.
Jun 01 15:45:40 Datastore2 readynasd[3766]: Volume data health changed from Redundant to Degraded.
Jun 01 15:47:05 Datastore2 readynasd[3766]: Disk Model:HGST HUH721010ALE600 Serial:7JJZZSMG was added to Channel 6 of the head unit.
Jun 01 15:47:13 Datastore2 readynasd[3766]: Resyncing started for Volume data.

 As a result, the mdstat info is just showing the resync of the HGST drive (still underway when the logs were taken), and the partition/smart info for the WDC drive isn't there anymore.  

I don't have any good ideas on how to kick-start the expansion at this point.

From a practical point of view, the options are

1. reinsert the WDC drive, and wait for resync.  Then create the missing partition from ssh, and then add it to md127 (also using ssh).  This requires some linux skills, and she'd still likely be locked into FlexRAID.
2. Start over, with a fresh volume, and rebuilding the NAS.  Painful, and time consuming - but doesn't require use of ssh.  The result would be a completely clean volume, with XRAID.

We can provide more guidance on (2) if she needs it.  We'd need to know if she has a backup of the files - and if not, if she has another 6-8 bay ReadyNAS.  

An FYI for future reference:  The conversion from single-redundancy (RAID-5) to dual-redundancy (RAID-6) only happens when you install a 7th drive to a desktop system.  So it is not a concern for a 6-bay ReadyNAS like the RN316.