Had a customer purchase an R630 a few months back. They bought the system with only one hard drive.
The system is in production.
They have been provided an PERC H310 and an additional hard drive. But I believe if the PERC card is installed, along with the additional hard drive, and they try to setup a mirrored pair all the data on the running hard drive will be lost.
Correct. RAID and non-RAID are not compatible. You'll need to backup and restore to the new RAID array. I would also recommend you use an H730 instead of the H310 (or H330) - better reliability, functionality, and performance.
I'm thinking the following:
Since the R630 is online and running, and if I add the PERC card (which I have now found out is an H730), I will wipe the data on the existing hard drive, I will instead do the following:
The R630 is running Windows 2008 R2. I'll install the second hard drive. Go to disk management and make the original hard drive and the 2nd hard drives dynamic disks (which preserves the data on the original drive), and then mirror drive 1 to drive 2 using disk management.
Not the best solution, but viable.