What is HikCentral Professional SYS server?

The SYS server in HikCentral Professional is the central management server responsible for system configuration, user management, event processing, access control, and client connections. It is separate from the pStor recording server. SYS server specifications scale with camera count, access control doors, face recognition channels, and concurrent client load.

What is pStor in HikCentral Professional?

pStor is Hikvision's dedicated recording server component in HikCentral Professional. It handles video recording, storage management, and playback independently from the SYS management server. Separating SYS and pStor roles allows HikCentral to scale to large deployments with hundreds or thousands of cameras across multiple recording server nodes.

How much RAM does HikCentral Professional server need?

RAM requirements for HikCentral Professional depend on camera count, face recognition channels, access control load, and concurrent client connections. Small deployments (up to 128 cameras) typically require 16–32GB RAM. Large deployments with face recognition and high concurrent client counts may require 64–128GB or more. Use the DoCrack HikCentral server sizing calculator for exact recommendations.

What RAID level should I use for HikCentral Professional storage?

RAID 6 is recommended for HikCentral Professional production deployments with 8 or more drives. It tolerates two simultaneous drive failures, which is critical during long RAID rebuild times with large HDDs. For smaller arrays of 4–6 drives, RAID 5 with a hot spare is acceptable. Critical infrastructure deployments should consider dual-recording to separate pStor nodes.

How many cameras can HikCentral Professional support?

HikCentral Professional supports large-scale deployments through a distributed server architecture with separate SYS and pStor roles. The platform can scale to thousands of cameras across multiple server nodes. Per-server camera limits depend on hardware specifications, workload type, and HikCentral version. Hikvision recommends validating final designs against official sizing guidelines for your specific version.

Does HikCentral Professional support face recognition?

Yes. HikCentral Professional supports both edge face recognition (processed by the camera) and server-side face recognition. Server-side FR requires dedicated processing capacity on the SYS server and scales with the number of FR channels, person library size, and detection rate. GPU acceleration may be required for high FR channel counts.

What is the difference between HikCentral Professional and HikCentral Enterprise?

HikCentral Professional is Hikvision's mid-to-large scale VMS supporting video surveillance, access control, ANPR, and face recognition in a unified platform. HikCentral Enterprise is the top-tier platform for very large or multi-site deployments with advanced federation, redundancy, and third-party integration capabilities. For most professional security projects, HikCentral Professional provides sufficient features and scalability.

HikCentral Professional Server Sizing Calculator

Estimate HikCentral Professional SYS server tier, pStor recording capacity, RAM, recording storage, RAID drive count, client decoding load, and network bandwidth.

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