Whether the SmartCache feature of the OceanStor V3 Series supports read and write cache

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The SmartCache feature only supports read cache.

Other related questions:
Whether the SmartCache feature of the OceanStor V3 Series supports online expansion
The SmartCache feature supports online expansion.

SmartCache feature of OceanStor T series/V3 series
SmartCache is an intelligent caching technology that uses SSDs as read cache resources. This technology creates a SmartCache pool of SSDs and migrates frequently accessed random small I/Os from conventional hard disk drives (HDDs) to the high-speed cache pool. The data read speed of SSDs is much faster than that of HDDs, so SmartCache greatly shrinks the hot data response time and improves the system performance. SmartCache divides an intelligent cache pool into partitions that provide fine-grained SSD cache resources for services. Different services can share one partition or use different partitions. The partitions are isolated from each other. More cache resources can be allocated to key applications to ensure application performance. SmartCache does not interrupt existing services or compromises data reliability.

Do OceanStor T series/V3 series products support SmartCache?
OceanStor T or V3 series storage systems support the SmartCache feature.

Whether the WORM feature of the OceanStor V3 Series supports the file level
Only file system–level WORM is supported. Directory- or file-level WORM is not supported. You can manually enable a file system to enter the protection state. Alternatively, you can set the state of a file system to automatic protection. Determine whether the WORM feature is used when you create a file system.

Performance specifications of OceanStor 9000
Performance specifications of OceanStor 9000: - OPS: up to 25,000 (CIFS) or 20,000 (NFS) per node - CIFS stable read and ultimate read: up to 800 MB/s and 1280 MB/s respectively per node - CIFS stable write and ultimate write: up to 800 MB/s and 1300 MB/s respectively per node - NFS ultimate read and ultimate write: up to 1600 MB/s and 1100 MB/s respectively per node

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