G-SPEED Product Guide
APPENDIX A
RAID |
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Level | Description | Advantage | Disadvantage | Ideal For… |
0 | Disk striping | Offers the highest | No fault tolerance - | Content creation |
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| performance and | failure of one drive | applications |
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| useable storage | in the array results |
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| capacity | in complete data |
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| loss |
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1 | Mirroring | High level of fault | Not the most | Applications in |
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| tolerance | efficient in regards | which data |
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| to capacity as | security is |
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| useable storage | paramount |
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| space is cut in half |
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3 | Disk striping | High level of |
| Content creation |
| with | read/write |
| applications |
| dedicated | performance, fault- |
| requiring high- |
| parity drive | tolerant, disk |
| performance and |
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| failure has |
| data security |
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| insignificant impact |
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| on performance |
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5 | Disk striping | High read | Disk failure results | File servers, |
| with | performance, | in drop in | database |
| distributed | medium write | performance | applications |
| parity | performance, fault- |
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| tolerant |
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6 | Disk striping | An extension of | Lower performance | Mission critical |
| with dual- | RAID 5 with a | than RAID 3 or | data |
| distributed | second | RAID 5 |
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| parity | independent |
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| distributed parity |
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| scheme. High level |
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| of fault tolerance. |
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| Two drives in the |
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| array can fail |
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| without data loss. |
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JBOD | Each drive can be | No fault tolerance | Audio | |
| accessed as an |
| applications | |
| disks | individual volume. |
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