The only downside of RAID 6 is that the extra parity slows down performance. This configuration provides enhanced data protection because it uses two sets of parity data and the striping provides a performance boost. They provide redundancy, allow for the largest range of disk usage and give you data protection that you can rely on. Want to learn how to improve your media management practices? Click below to speak with an expert today! ProMAX vs. Editshare ProMAX vs. The best RAID for performance and redundancy.
RAID 60 arrays provide high data transfer speeds as well. So which RAID is best? The redundant information allows the data to still be accessed.
If two or more drives fail in a RAID 5 volume group, all of the associated volumes fail, and all data is lost. Drive number requirements You must have a minimum of three drives in the volume group. Typically, you are limited to a maximum of 30 drives in the volume group. How it works User data and redundant information dual parity are striped across the drives. The equivalent capacity of two drives is used for redundant information. Data protection features If one or two drives fail in a RAID 6 volume group, all of the associated volumes become degraded, but the redundant information allows the data to still be accessed.
If three or more drives fail in a RAID 6 volume group, all of the associated volumes fail, and all data is lost. Drive number requirements You must have a minimum of five drives in the volume group. Parent topic: FAQs. Related concepts Create pools and volume groups. If three or more drives fail in a RAID 6 volume group, all of the associated volumes fail, and all data is lost. The redundancy data might be a copy of the data mirrored or an error-correcting code derived from the data.
You can use the redundancy data to quickly reconstruct information on a replacement drive if a drive fails. You configure a single RAID level across a single volume group. All redundancy data for that volume group is stored within the volume group.
The capacity of the volume group is the aggregate capacity of the member drives minus the capacity reserved for redundancy data. The amount of capacity needed for redundancy depends on the RAID level used. RAID levels and application performance RAID relies on a series of configurations, called levels , to determine how user and redundancy data is written and retrieved from the drives.
Select a RAID level based on the following information. How it works RAID 0 stripes data across all of the drives in the volume group. Data protection features RAID 0 is not recommended for high availability needs. RAID 0 volume groups can have more than 30 drives. The degraded performance is the result of the way that a controller writes data and redundancy data to the drives in a RAID 5 volume group or a RAID 6 volume group.
RAID 0 is better for non-critical data. The mirror drive allows access to the data. A volume group can be created that includes all of the drives in the storage array.
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