Dell DX6000 Reference Manual

Also see for DX6000: Manual Supplementary guide Hardware installation instructions Hardware owner's manual Application guide

Contents

Dell DX6000 Reference Manual Manual pdf 12 page image

Dell DX Object Storage – File Gateway Architectural ReferencePage 11Sizing GuidelinesWhen selecting a DX Object Storage CFS Gateway solution, the following factors should be considered.AvailabilityWhether to choose a single-server solution or a failover solution depends on how mission-critical thedata is (in terms of downtime). Single server is a simple configuration that allows clients to write through CIFS/NFS allowingthe namespace and spooled data to be stored on internal storage. The spooled data isprotected through RAID 1. However, if a CFS server failure occurs, the server must berecovered with access to the internal storage to recover the spooled data. Failover configurations utilize iSCSI storage for the namespace and spooled data. The spooleddata is stored on external shared storage, allowing the data to be recovered by another CFSserver. This configuration is recommended for mission critical applications because it reducesthe time the data is not available during a CFS failure condition. The tradeoff is thatperformance for a failover configuration is expected to be less than half the performance of asingle-server configuration with internal storage.Number of ClientsA CFS server can support up to eight shares and a maximum of 250 CIFS or NFS connections, assumingthat approximately 10 percent of the connections are active at any given time.Amount of External StorageWhen sizing the external storage for a failover solution, use the following requirements for each share: The namespace requires up to 10GB Spooled data should have space allocated that is twice the size of the largest file written tothe DX Object Storage, plus the expected daily file volume, or a minimum of 300GB for cacheddata.

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