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Cluster : Storage > Aggregates : Understanding aggregates : How you use aggregates to provide storage to your volumes
How you use aggregates to provide storage to your volumes
To support the differing security, backup, performance, and data sharing needs of your users, you group the physical data storage resources on your storage system into one or more aggregates. You can design and configure your aggregates to provide the appropriate level of performance and redundancy for your storage requirements.
Each aggregate has its own RAID configuration, plex structure, and set of assigned disks or array LUNs. The aggregate provides storage, based on its configuration, to its associated FlexVol volumes or Infinite Volume.
Aggregates have the following characteristics:
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They can be composed of disks or array LUNs.
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They can be 64-bit or 32-bit format.
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If they are composed of disks, they can be single-tier (composed of only HDDs or only SSDs), or they can be Flash Pools, which include both of those storage types in two separate tiers.
The cluster administrator can assign one or more aggregates to a Vserver, in which case you can use only those aggregates to contain volumes for that Vserver.
For information about best practices for working with aggregates, see Technical Report 3437: Storage Subsystem Resiliency Guide.
Related Link:  
TR 3437: Storage Subsystem Resiliency Guide

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