Installing a new CCTV system and can’t decide between a RAID-1 storage system and a RAID-5? Jeff Whitney of IP data storage firm Intransa has some advice:RAID 1 is also referred to as a 'storage mirror' or a 'mirroring solution'. All data is recorded on not just one but two identical drives, so that two copies exist at all times. If one drive fails, the exact copy on the other continues to function and no data is ever lost. While many DVRs have no RAID protection at all, some do feature RAID 1 support.
Simply put, RAID 5 delivers the best overall balance of data protection and performance and makes the most efficient use of drive capacity of all RAID techniques. As a result, RAID 5 is the most widely used technique in IT and is also found in the best DVR and IP storage systems.
Still confused? Study this advice in more detail at:
http://www.securityinfowatch.com/article/article.jsp?siteSection=430&id=13093&pageNum=1
The new Specifying Security Systems Course, 21-25 July 2008, will look at CCTV specification, as well as the specification of other technological security systems, in detail. Contact Janet for more information.
