EE AN012 CMVR RAID
Eagle Eye Application Note – AN012
Understanding RAID and Building Resilience with Eagle Eye CMVRs
This Application Note is intended for installers and technicians that will be performing CMVR and camera installations in conjunction with the Eagle Eye Cloud VMS and is intended to share best practices in regards to RAID.
RAID stands for Redundant Array of Inexpensive Disks; it is a way of logically putting multiple disks together into a single array. The idea is that these disks working together will have the speed and/or reliability of a more expensive disk.
A RAID system consists of two or more drives working in parallel. These can be standard hard discs, but there is also a trend to use the technology of Solid-State Drives (SSD). Sometimes, disks in a storage system are defined as JBOD, which stands for Just a Bunch of Disks. This means that those disks do not use a specific RAID level and simply act as a stand-alone disk.
There are different RAID levels, each optimized for a specific situation. There is no standardization by any industry group or committee at present. Here are the following common RAID levels:
- RAID 0 – striping
- RAID 1 – mirroring
- RAID 5 – striping with parity
- RAID 6 – striping with double parity
- RAID 10 – combining RAID 1 mirroring and RAID 0 striping
In the Eagle Eye VMS, CMVR 520 and 620 both come with RAID 5, while CMVR 820 uses RAID 6.
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