We want to increase disk space of one of our server. Currently it has 8 physical disks(4 x 480 GB, 4 x 1.9 TB) and 3 virtual disks(RAID 1 (2 x 480GB), RAID 1 (2 x 480 GB), RAID 10(4 x 1.9TB)). We want to increase disk space on virtual disk 3 which is configured with RAID 10(4 x 1.9 TB).
We are planning to add 2 new 3TB disks into virtual disk 3 RAID array. In this case, we are not sure about how RAID is going to behave.
Since newly added disks have larger capacity(3TB) that the older ones(1.9 TB), we are not sure how much we effective space we are going to get out of it. Is it going to be 1.9 TB same as all older disks or is it going to be entire 3TB.
Can someone please help me with understand how will RAID behave in this case?
Server information :
- Type : DELL PowerEdge™ R640 DX152
- Operating system : Windows Server 2012 R2
- RAID Controller : PERC H730P Mini (Embedded)