Hello, 

I'm hoping someone can help me as I'm very green when it comes to RAID setup.

I have a Poweredge R720 with 1TB HDD RAID1 for S110 setup that I'm managing.  The server went down a few months back where we had to break the mirror and remove one drive in order to restore the server from backup (long story).   

Now were are running out of space on the 1TB drive and I'm looking to upgrade to 2 - 2TB drives.  

1) Can I insert one 2TB drive into the empty bay and expect the original 1TB drive to copy over, then insert the other 2tb drive?  Then use OMSA to reconfigure the array to include the added space?  

2) Or am I better off installing one 2tb drive and copying the image over from the backup?  With 1 drive and good daily backups, I can then reconfigure to a RAID 0 and use the additional bay and drive as storage?  Or is this sound crazy?