I have an HP server with an P410i RAID Card installed. I had two SATA Drives connected (250GB each). The RAID was configured as a Mirror. A few days ago the drive one (1) failed, and i had to remove it. Tried to find the same part number here in Venezuela, but i couldn't. So, i bought a 500GB SATA Drive, and connected it to the same bay where the 250GB failed drive was. When the server booted, it asked me if i wanted to rebuild the data. I selected the option for that, and Windows Server restarted properly. When i got into the ACU (Array Configuration Utility) it told me that it was rebuilding the data. Today the warning went away, and according to the ACU everything is just fine. My question is... What i did was right? Can i create a mirror from a 250GB disk in a 500GB disk using the p410i? I have done that before, but only using software RAID in Windows, and it just uses the space it needs. As a matter of fact, when did that using Windows i was able to use the remaining space in the bigger drive, but in the p410i i can't use it. Should i be worried? Thanks a lot in advance for any pointers or info that you could give on this. Heishiro