HighPoint RocketRAID mini-SAS 6G HBA Series Manuel d'installation - Page 3
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Imprimer la pagedistributing the workload.
Protection: No built‐in protection.
Capacity: Usable space is the combined capacity of all the drives.
RAID 5 "Stripe & Protection"
Speed: Data is striped like in a RAID 0, so significant speed gains are seen.
Protection: Utilizes mathematical parity to achieve data protection while taking up
a minimum of space. One drive can fail and all data will still be accessible.
Capacity: All but one drive worth of capacity is usable. Minimum three drives are
needed to create a RAID 5 array. In a three drive RAID 5 array, there is two drives
worth of usable space.
Combined RAIDs: RAID 10
Speed: Combines multiple RAID 1 or RAID 5 sets by using RAID 0 "Striping" to gain
speed.
Protection: There are two RAID 1 "Mirrored" sets used in order to tolerate 1‐2
drives failing depending on which drives they are.
Capacity: Usable space is half of the combined capacity of all the drives used
RAID 1 "Mirror"
Speed: No speed benefits gained.
Protection: One drive can fail and all data will still be accessible.
Capacity: One drive worth of usable space out of the two total drives used.
JBOD (Independent Drive Modes)
Speed: No significant speed gains.
Protection: No built‐in data protection.
Capacity: In JBOD mode, the capacities are combined. When set up as independent
drives, each drive presents its stated capacity for use.