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Do all RAID drives need to be the same size?
Must hard drives in a RAID array be identical? No. It is perfectly valid to use hard drives from different manufacturers, model numbers, sizes, and rotational speed (spindle speed or RPM).
Do all hard drives need to be the same size for RAID?
The only absolute requirement for matching drive specs in a RAID 10 array is that the drives must be of the same architecture, e.g., all SAS or SATA.
Can you RAID 0 two drives?
RAID 0 is the only configuration that doesn’t really fit into the RAID definition since there’s no redundancy unless you setup RAID 0+1. However, you should be fine running those 2 drives in a RAID. You can run different size and speed drives in a RAID configuration.
How does RAID 1 work on a disk?
When managing a new disk array, a RAID user will select the mirror option for a new volume to set up RAID 1. RAID 1 effectively removes half of the storage capacity of an array. Although each disk does have a specified capacity (say 500 GB), the data is mirrored on another disk, so only the same files can be stored on both drives.
What do you need to know about a RAID controller?
A RAID controller is a piece of hardware that creates the redundancy between disks, used to configure a RAID array’s setup. Disks should be the same size and capacity. When managing a new disk array, a RAID user will select the mirror option for a new volume to set up RAID 1.
Can you use RAID 5 with different size drives?
You can use RAID 5 with different sized disks physically, but within the RAID features they all have to be identicle. What would happen in your case if you configured a RAID5 with all 6 disks, is that the RAID would use 6 x 2TB leaving the four 4TB drives with 2TB of free space.
Which is cheaper software RAID or hardware RAID?
Here this process is referred to as the software RAID setup. Software RAID setup is a cheaper choice compared with a hardware RAID controller. You are restricted to the RAID levels that your OS can support. In other words, software RAID has some limitations especially in terms of the configuration options.