Lacie 2big Thunderbolt 2 User Manual - Page 34

SAFE RAID 1, example, data is written to Disk 1 first. Once Disk 1 is full

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SAFE (RAID 1): RAID 1 provides data protection since all data is written to each hard drive at the same time. In the event of a single hard drive failure, data remains available on the other hard drive. Due to the time it takes to write the data twice, performance is reduced when compared to RAID 0. RAID 1 is a good choice when safety is more important than speed. However, RAID 1 also reduces the available drive space by 50% due to the need to write every bit of data to each hard drive. JBOD: Hard drives in a JBOD configuration are treated as individual volumes and data is stored sequentially. For example, data is written to Disk 1 first. Once Disk 1 is full, data will be written to Disk 2. An advantage to this level of RAID is the availability of 100% of the hard drives' total storage capacity. However, it does not offer protection and all data will be lost if a single hard drive fails. LaCie 2big Thunderbolt 2 User Manual 34

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LaCie 2big Thunderbolt 2 User Manual
34
SAFE (RAID 1):
RAID 1 provides data protection since all data is written to each hard drive at the same time. In
the event of a single hard drive failure, data remains available on the other hard drive. Due to the time it takes
to write the data twice, performance is reduced when compared to RAID 0. RAID 1 is a good choice when safety
is more important than speed. However, RAID 1 also reduces the available drive space by 50% due to the need
to write every bit of data to each hard drive.
JBOD:
Hard drives in a JBOD configuration are treated as individual volumes and data is stored sequentially. For
example, data is written to Disk 1 first. Once Disk 1 is full, data will be written to Disk 2. An advantage to this
level of RAID is the availability of 100% of the hard drives' total storage capacity. However, it does not offer
protection and all data will be lost if a single hard drive fails.