RAID5 - Background parity initialization is currently queued or in progress - taking long time...

Hi everyone.

I have a client who has a raid 5 with 3 physical disks.  One of the disks just failed, and we have swapped it with a new disk.  Within the Status Alerts of the Array configuration Utility we are getting the message below:

Background parity initialization is currently queued or in progress on Logical Drive 2 (558.7 GB, RAID 5). If background parity initialization is queued, it will start when I/O is performed on the drive. When background parity initialization completes, the performance of the logical drive will improve.

It has been there for 8 hours so far - is there anything I must do?

Please advise.

Thanks!

Chris