Hello.   I have a PE230 with PERC h730 and 4 1TB SATA in a raid 5. I have some spares that are SAS. I would like to migrate to the SAS drives. I have 2 VHDs that span the 4 drives.   Note that SATA and SAS hard drives can not be mixed within the same RAID array or Virtual Disk (VD) and that a sliced VD (having more than 1 VD set up on common physical drives) can not be re-configured. The option available is for you to backup your data, create a new VD with SAS hard drives and then restore from backup. Thank you.
I have a PE230 with PERC h730 and 4 1TB SATA in a raid 5. I have some spares that are SAS. I would like to migrate to the SAS drives. I have 2 VHDs that span the 4 drives. I am running Server 2012R2 Hyper V host  with 1 VM. I am trying to avoid buying more drives at this time.
migrate from SATA Raid5 to SAS Raid 5