Thecus 2TB Storage Server N299 N299_2100 Leaflet

 

 
 

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RAID 1 mirrors all data from one hard disk drive to a second one hard disk drive, 
thus providing complete data redundancy. However, the cost of data storage 

capacity is doubled.  
 

This is excellent for complete data security. 

Although a concatenation of disks (also called JBOD, or "Just a Bunch of Disks") is 

not one of the numbered RAID levels, it is a popular method for combining 
multiple physical disk drives into a single virtual one. As the name implies, disks 

are merely concatenated together, end to beginning, so they appear to be a 
single large disk. 

 

As the data on JBOD is not protected, one drive failure could result total data loss. 
 

The length of the data segments being written across multiple hard disks. Data is 
written in stripes across the multiple hard disks of a RAID. Since multiple disks 
are accessed at the same time, disk striping enhances performance. The stripes 

can vary in size.   
 

When all 4 disks are of the same size, and used in RAID, the N299’s disk usage 

percentage is listed below: 
 

RAID 0 

100% 

RAID 1 

50% 

JBOD 100%