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Initial operation
10.2. On initial start-up: hard drive confi guration
After the starting the LifeCloud system for the first time, a hard disk configu-
ration wizard will appear when you first log in to the LifeCloud.
RAID I
("Redundant Array of Independent Disks")
The two hard drives of the LifeCloud system (6 TB each) are used in conjunc-
tion in the RAID 1 configuration. The same files are saved on both hard drives
(mirroring) so that full redundancy of data is provided. The capacity of RAID
1 is therefore at most as large as the smallest hard drive being used (in this
case 6 TB).
As the two disks are written identically, both disks contain all of the system's
data which is a great advantage with respect to data security.
If one of the mirrored disks breaks down, the other will continue to provide
all of the data. RAID 1 thus provides a high level of stability because both
hard disks would have to fail to entail a total loss of data.
JBOD
("Just a Bunch of Disks")
JBOD does not offer the redundancy (mirroring) of data, it is merely a simple
"arrangement of independent disks".
In this configuration both 6 TB hard disks of the LifeCloud system are lined
up and appear as a single 12 TB drive.
The advantage of this hard disk configuration is therefore the larger data ca-
pacity.
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