configuration does not offer any type of data protection.
JBOD: An acronym for “just a bunch of disks”, JBOD uses a combination of
two or more disks to create storage space. The total storage capacity is the
capacities of all the disks added together. The advantage of this
configuration is that it allows you to use different sized disks together and
provides a large amount of storage space. The downside is that it does not
offer any sort of data protection.
RAID Volume Types
RAID 0: Uses a combination of two or more disks to create storage space.
The total storage capacity is the capacities of all the disks added together.
The advantage of this configuration is that it allows you to use different sized
disks together and provides a large amount of storage space. Also, data in
RAID 0 volumes is accessed in parallel which provides improved
performance. The downside is that RAID 0 does not offer any sort of data
protection.
RAID 1: In RAID 1 your data is written identically on two disks, thereby
producing a “mirrored set”. Exactly the same data is stored on the two disks
at all times. RAID 1 protects your data from loss should one of your disks
fail. RAID 1’s advantage is that it offers protection for your data by providing
data redundancy. The downside of this configuration is that when combining
two disks of differing sizes, the total storage space will be equal to the size
of the smaller disk. Therefore, you will be unable to use a portion of the
larger disk.
Total available storage space = (size of smaller disk) * (1)
RAID 5: Combines three or more disks to create a storage space that is able
to support one failed disk. Should one of your disks fail, your data will still
be protected from loss. In the event of disk failure, simply replace the failed
disk with a new one. The new disk will automatically be accommodated into
the RAID 5 configuration. The advantage of using RAID 5 is that is that it
provides data protection through data redundancy. The downside to using
RAID 5 is that when combining disks of differing sizes, the total storage
space will be calculated based on the size of the smallest disk.
Total available storage space = (size of smallest disk) * (total number of
disks – 1)
RAID 6: Combines four of more disks to create a storage space that is able
to support two failed disks. Should two of your disks fail, your data will still
be protected from loss. In the event of disk failure, simply replace the failed
disks with new ones. The new disks will automatically be accommodated into
the RAID 6 configuration. The advantage of using RAID 6 is that it is able to
provide superior data protection through data redundancy. The downside to
using RAID 6 is that when combining disks of differing sizes, the total
