Huawei Storage Product Portfolio (OceanStor Block, File, Object)
This domain tests product placement: which Huawei family you propose for a given workload, and why the others are wrong.
The families
OceanStor Dorado is the all-flash line (3000/5000/6000/8000/18000 in V6), built end to end on NVMe with the SmartMatrix full-mesh multi-controller architecture. It serves block and file workloads needing sub-millisecond, predictable latency and continuous availability; a four-controller configuration tolerates three controller failures.
OceanStor hybrid flash arrays of the 5000/6000/18000 class mix SSD and HDD with SmartTier for cost-sensitive block and file workloads. OceanStor Pacific is the scale-out family (9000/9500 series), delivering file, object, HDFS and block from one namespace - the default answer for HPC, big data, media and long-term surveillance archives. OceanProtect is dedicated backup storage plus OceanProtect data-backup software; it is not a production array.
Choosing
Match the dominant requirement first: latency and IOPS → Dorado; capacity per unit cost with moderate performance → hybrid; massive unstructured capacity with scale-out protocols → Pacific; backup copies, instant recovery and air gap → OceanProtect. Secondary needs - replication, multi-tenancy, specific NAS protocols, encryption - then narrow the model.
Worked example
A hospital needs an EMR database with strict response times plus 2 PB of imaging kept seven years and rarely read. Split it: EMR on Dorado block LUNs with HyperMetro to the second campus for RPO 0; images on OceanStor Pacific as object or NFS, with lifecycle rules moving older studies to cheaper nodes; both protected by OceanProtect. Putting PACS on all-flash wastes budget; putting EMR on Pacific sacrifices latency.
Traps
Assuming every all-flash requirement means Dorado; treating Pacific as object-only when it also serves file and HDFS; quoting a hybrid array for a workload demanding consistent sub-millisecond latency; confusing Dorado and hybrid model numbering; and expecting OceanProtect to serve production I/O.