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Use of local storage in current use cases
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The FSS feature supports all current use cases of the Symantec Storage Foundation Cluster File System High Availability (SFCFSHA) stack without requiring SAN-based storage. |
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Off-host processing
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Data Migration:
From shared (SAN) storage to network shared storage From network shared storage to SAN storage From storage connected to one node (DAS)/cluster to the storage connected to a different node (DAS)/cluster, that do not share the storage
Back-up/Snapshots:
An additional node can take a back-up by joining the cluster and reading from volumes/snapshots that are hosted on the DAS/shared storage, which is connected to one or more nodes of the cluster, but not the host taking the back-up.
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DAS SSD benefits leveraged with existing SFCFSHA features
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Mirroring across DAS SSDs connected to individual nodes of the cluster. DAS SSDs provides better performance than SAN storage (including SSDs). FSS provides a way to share these SSDs across cluster. Keeping one mirror on the SSD and another on the SAN storage provides faster read access due to the SSDs, and also provide high availability of data due to the SAN storage. There are several best practices for using SSDs with Storage Foundation. All the use-cases are possible with SAN attached SSDs in clustered environment. With FSS, DAS SSDs can also be used for similar purposes. |
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FSS with SmartIO for file system caching
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If the nodes in the cluster have internal SSDs as well as HDDs, the HDDs can be shared over the network using FSS. You can use SmartIO to set up a read/write-back cache using the SSDs. The read cache can service volumes created using the network-shared HDDs. |
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Campus cluster configuration
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Campus clusters can be set up without the need for Fibre Channel (FC) SAN connectivity between sites. |
