The advantage of RAID 1 use with two storage devices is that it provides data redundancy and fault tolerance by creating a mirrored volume. This means that the data on one device is duplicated on the other device, so if one device fails, the other device can continue to operate and provide access to the data. RAID 1 can also improve read performance by splitting the read requests between the two devices, but it does not affect write performance as both devices need to write the same data.
Some of the benefits of RAID 1 use with two storage devices are:
- Enhanced data security: RAID 1 can protect the data from a single device failure, as the other device can take over and maintain the data integrity. RAID 1 can also simplify the recovery process, as the surviving device can be used to rebuild the array or clone to a new device without data loss1.
- In case a device fails, data do not have to be rebuilt, they just have to be copied to the replacement device: RAID 1 does not require any complex data reconstruction process, as the data are already mirrored on another device. The only thing that needs to be done is to copy the data from the surviving device to the replacement device.
- RAID 1 is a very simple technology: RAID 1 is one of the simplest and most straightforward RAID levels, as it only involves creating a mirrored volume with two devices. It does not require any parity calculations or striping techniques.