jerome_itable Lv2Posted 17 Jan 2024 08:07
  
In a typical HCI system, including Sangfor HCI, data stores can differ in several key aspects:

1. Type of Storage:

    Virtual Data Stores: Logical pools of storage capacity created from the combined physical disks of multiple nodes. They offer flexibility, scalability, and ease of management.
    Local Data Stores: Physical disks directly attached to specific nodes, often used for high-performance workloads or specific applications with unique requirements.

2. Storage Policy:

    Erasure Coding: Data is distributed across multiple nodes with redundancy for high durability and fault tolerance, but may have some performance overhead.
    Mirroring: Data is replicated across multiple nodes for faster performance but potentially less efficient storage utilization.

3. Performance and Capacity:

    Tiered Storage: Different data stores can be configured with different performance characteristics (e.g., SSDs for high-performance workloads, HDDs for capacity-oriented workloads).

4. Access Protocols:

    NFS: Network File System, commonly used for file-level sharing.
    SMB: Server Message Block, often used for Windows-based file sharing.
    iSCSI: Internet Small Computer System Interface, a block-level storage protocol often used for virtual machines.

5. Replication and Protection:

    Replication: Data can be replicated between data stores within the HCI cluster for redundancy and disaster recovery.
    Snapshots: Point-in-time copies of data can be created for backup and recovery purposes.

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