well as I am sure your aware, resyncs are stressful for all drives, not just the drive being resynced.
when they recommended resyncing drives to re-align 4k partitions, I wondered how many people will do this and have problems due to the stressfull nature of back to back resyncs. I mean when you think about it, your purposely degrading and rebuilding the array multiple times to achieve this.
anyway, hopefully you and/or your customer have taken proper backups/precautions for this particular situation and/or will in the future to avoid any data loss
nv+ ~ 1gb ram ~ 4x WDC WD20EARS-00S8B1 ~ 5555 GB ~ power supply dead
ultra4 ~ 4 gb ram ~
pro business ~ 4gb ram ~ 2x Seagate ST4000DX000-1C5160 ~ 2x Seagate ST4000DM000-1F2168 ~ 10tb
pro 6 ~ 4gb ram ~ dual redundancy ~ 4x Hitachi HDS724040ALE640 ~ 2x Seagate ST4000DM000-1F2168 ~ 14tb
A/V streaming ---> Subsonic
---> HTC One ~ Note 2 ~ Nexus 7