Lenovo Thinksystem DE2000H SAS Hybrid SFF - 7Y71A000WW

Lenovo 7Y71A000WW ThinkSystem DE2000H Hybrid SAS Storage Array

The Lenovo ThinkSystem DE2000H — model 7Y71A000WW — is a 2U rack-mount hybrid flash storage array designed for small and medium business environments that need enterprise-class storage density without committing to an all-flash budget. Twenty-four small form factor drive bays support both HDD and SSD simultaneously, letting you tier hot data to flash while keeping bulk capacity on spinning media — a practical compromise for mixed workloads like video surveillance repositories, virtualization datastores, and file serving that don't justify the cost premium of a pure SSD array.

Overview

Part of Lenovo's ThinkSystem storage line, the DE2000H ships as a hybrid storage array chassis with no drives installed. That matters for procurement: you select and size the drive complement to your actual workload rather than paying for pre-configured bundles that rarely match real-world capacity needs. The 2U form factor keeps rack footprint tight — two of these fit in the same vertical space as a 4U all-in-one alternative, which is worth considering for high-density deployments where rack space costs money. At 33 pounds, the unit sits comfortably within standard two-person lift guidelines for rack installation without requiring additional lifting aids.

Key Features

• 24 Hot-Swap SFF Drive Bays (HDD + SSD): All 24 bays support both spinning disk and solid-state drives interchangeably, and every bay is hot-swap capable — pull and replace a failing drive without scheduling downtime. Mix and match HDD for bulk capacity and SSD for performance tiers within the same array, rather than managing two separate enclosures.
• 368.64 TB Maximum Raw Capacity: With 24 bays fully populated with large-capacity SFF drives, you reach 368.64 TB raw — enough to hold months of high-resolution video retention for multi-camera surveillance systems, or several years of structured data for SMB file server workloads. That ceiling gives meaningful headroom so the array doesn't become a bottleneck as data volumes grow.
• 4x 16Gb Fibre Channel Base Ports: The onboard 16Gb FC ports connect directly into an existing SAN fabric without requiring a separate HIC card purchase for FC-first environments. 16Gb FC delivers up to 1,600 MB/s per port theoretical throughput — adequate for high-IOPS database or VM workloads that would saturate slower host interfaces.
• 4x 12Gb SAS Host Interface Card Ports: The 12Gb SAS HIC option gives direct-attach flexibility for servers that don't have FC infrastructure — useful in smaller deployments where a full SAN fabric is overkill. SAS direct-attach also eliminates FC switch licensing costs, which matter on SMB budgets.
• RAID 0, 1, 3, 5, 6, 10 Support: Six RAID levels cover the full spectrum from maximum performance (RAID 0, no redundancy) to dual-parity protection (RAID 6, survives two simultaneous drive failures). RAID 6 is the practical default for bulk storage where drive counts are high enough to make double-failure events statistically non-negligible — especially relevant when fully populating all 24 bays with high-capacity drives.
• Dual 913W Power Supplies: The 913W PSU rating supports a fully loaded 24-bay configuration without power headroom concerns. Redundant PSU architecture (implied by dual-PSU design in hybrid arrays of this class) protects against single power supply failures — consult rack PDU planning to ensure both feeds draw from independent circuits for full redundancy benefit.
• Built-in Display and LED Indicators: The front panel display and per-drive LED indicators accelerate fault identification without requiring a management console session — useful during initial installation and when responding to alerts in a datacenter environment where quick visual triage matters.
• RJ-45 Management Ports (3x): Three dedicated management ports (RJ-45) allow out-of-band array management independent of host data paths. That separation means a storage network outage doesn't also cut off your ability to reconfigure or diagnose the array.

Integration and Compatibility

The 7Y71A000WW targets environments already standardized on SAS drive ecosystems and either Fibre Channel SAN fabric or SAS direct-attach server connectivity. The dual host interface approach — 16Gb FC base ports plus 12Gb SAS HIC — gives flexibility to connect into either topology without reconfiguring the array hardware. For NVR and video management server deployments requiring sustained write throughput from dozens of IP camera streams, the hybrid drive configuration lets you land incoming video writes on SSD cache before destaging to HDD, smoothing write latency under concurrent camera load. Organizations evaluating storage capacity planning for surveillance retention should account for raw-to-usable capacity reduction under RAID 6 (roughly 75–80% usable on a 24-drive array), which affects real retention calculations. The USB connectivity provides an additional management or firmware update path outside the primary network interfaces.

Frequently Asked Questions

Q: Does the 7Y71A000WW ship with drives included?

A: No. The 7Y71A000WW is a drive-free chassis. You configure and order the SAS HDDs and/or SSDs separately to match your capacity and performance requirements.

Q: What host connectivity options does the DE2000H 7Y71A000WW support?

A: The array includes 4x 16Gb Fibre Channel base ports and 4x 12Gb SAS ports via the host interface card, covering both FC SAN fabric environments and SAS direct-attach server configurations.

Q: Can I mix HDDs and SSDs in the same array?

A: Yes. All 24 SFF bays support both HDD and SSD drive types simultaneously, enabling tiered storage configurations within a single 2U enclosure.

Q: What RAID levels does the 7Y71A000WW support?

A: The array supports RAID 0, 1, 3, 5, 6, and 10. RAID 6 provides dual-parity protection and is appropriate for fully-populated configurations where simultaneous multi-drive failure risk is higher.

Q: What is the maximum raw storage capacity?

A: The maximum supported raw capacity is 368.64 TB across all 24 SFF bays, subject to the drive types and capacities you install.

Q: Are the drive bays hot-swappable?

A: Yes. All drive bays on the 7Y71A000WW support hot-swap, allowing drive replacement without powering down the array or interrupting host I/O.

Karl Wilson

The thing I keep coming back to on the 7Y71A000WW is the dual host interface design — 4x 16Gb FC base ports alongside the 12Gb SAS HIC. That's not a spec you see on entry-level arrays. It means you're not locked into one connectivity architecture at purchase time, which matters when a site's SAN strategy might shift over a 5-year deployment cycle.

Technical Highlights:

• 24 Hot-Swap SFF Bays: Full 24-bay hot-swap capability means drive maintenance is non-disruptive. On a surveillance system recording continuously from dozens of cameras, that's the difference between a scheduled swap and an unplanned outage.
• 368.64 TB Raw Ceiling: At max population, 368.64 TB raw gives substantial retention depth. Under RAID 6 on a 24-drive array, expect roughly 300 TB usable — still enough for multi-month 4K retention on mid-scale camera deployments without daisy-chaining enclosures.
• RAID 6 Dual-Parity: When you're running 24 drives, two simultaneous failures become a realistic statistical risk over a 5-year period. RAID 6 absorbs that scenario without data loss — that's the correct default for fully-populated bays, not RAID 5.

Deployment Considerations:

• No drives ship with the 7Y71A000WW — budget for SAS SFF drives separately. Confirm SAS compatibility against Lenovo's supported drive list before purchasing third-party media, as the controller firmware may enforce a drive qualification list.
• 913W PSU rating means a fully loaded rack needs to account for this unit's draw on the PDU circuit. Plan dedicated 20A circuits per power supply feed to fully realize the redundant PSU protection — sharing a circuit defeats the redundancy.

This array is the right fit for a physical security operations center consolidating storage from a multi-site camera network onto a centralized NVR infrastructure, where the hybrid HDD/SSD mix handles write-heavy ingest streams while keeping long-term retention economics reasonable. It's less suited for compute-heavy random I/O workloads where an all-NVMe array would better serve IOPS demands.