Seagate NAS OS 4 U User Manual page 105

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(JBOD (Just a Bunch of Disks
Hard drives in a JBOD configuration store data sequentially. For example, data is written to Disk 1 first. Once
:Disk 1 is full, data will be written to Disk 2, then Disk 3, etc. Two advantages to this level of RAID are
availability of the hard drives' total storage capacity 100%
Easy expansion
.JBOD's weakness is that it has no data protection. Should a hard drive fail, all data on that hard drive will be lost
RAID 0
RAID 0 is the fastest RAID mode since it writes data across all of the volume's hard drives. Further, the
capacities of each hard drive are added together for optimal data storage. However, RAID 0 lacks a very
important feature: data protection. If one hard drive fails, all data becomes inaccessible. A recommended
option is SimplyRAID or RAID 5, which offer comparable performance and data protection in case a single hard
.drive fails
RAID 1
105
10/18/16
Seagate NAS OS 4

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