WD Sharespace -REBUID RAID after faulty drive replacement

II have a WD sharespace with RAID 5 configured. I had a faulty drive 2 days ago and I changed the faulty drive today. I cannot access my data now. does it take 34 hours to rebuild RAID ?? also I noticed that Power LED is flashing RED not green. I used a drive from another WD sharespace that I have and it was not used.

Hello, was the drive the same model before and after the hyphen? As far as I remember a share space will take a LONG time to rebuild RAID 5, specially if you had a lot on info on the drive.