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Your SAN Is Running at 16Gb. Every VM Migration Takes 4 Minutes. A 32Gb HBA Cuts That to 90 Seconds. Here Is the Math.

Upgrading from 16Gb to 32Gb Fibre Channel doubles the throughput per port — but the real benefit is not in sustained throughput, it is in burst I/O. VMware vMotion, storage vMotion, backup snapshots, and database checkpointing are all bursty workloads that saturate 16Gb links for minutes at a time. A 32Gb port handles the same burst in half the time, and the reduction in I/O latency during burst periods is what VM admins and DBAs actually notice.

Технические характеристики

Параметр	Спецификация
Чипсет	Broadcom Emulex LPe35002 (XE501 controller)
Порты	2x 32Gb Fibre Channel (SFP28+), auto-negotiating 32/16/8 ГБ
Хост-интерфейс	PCIe 4.0 х8
Пропускная способность	Вплоть до 1.6 million IOPS per port (512B random read), 12,800 MB/s per port (full 32Gb line rate)
NPIV (N_Port ID Virtualization)	Вплоть до 255 virtual ports per physical port — each VM gets its own WWPN for SAN zoning
FEC (Forward Error Correction)	Yes — corrects bit errors at 32Gb line rate without retransmission. Critical for 32Gb distance links.
Fabric Services	FDMI, FCoE (Fibre Channel over Ethernet) initiator and target, NPV (N_Port Virtualization)
Boot Support	x86 BIOS, UEFI 2.x, FCode (SPARC)
Управление	Emulex OneCommand Manager (GUI/CLI), Brocade/Emulex HCM, RESTful API, SNMP
Diagnostics	D_Port (ClearLink) diagnostics, beaconing, optical transceiver monitoring (DDM), loopback
Власть	~12W typical (both ports active, 32ГБ, optics populated)
Optics	SFP28+ SW (short-wave, 850нм, up to 100m on OM4), LW (long-wave, 1310нм, up to 10km on OS2)
Фактор формы	Low-profile PCIe, full-height bracket included
Physical	167 Икс 69 мм (standard LP PCIe card)
Поддержка ОС	VMware ESXi 7.0 U3+, 8.0+ \| Windows Server 2019/2022/2025 \| RHEL 8.6+/9.x \| SLES 15 SP4+
Compatible Switches	Brocade G720/G730 (64Gb capable, 32Gb compatible), Cisco MDS 9132T/9148T (32Gb native)
Compatible Servers	All Dell PowerEdge, xFusion, Lenovo servers with PCIe 4.0 x8+ slot
Гарантия	3-год (with server)

32Gb vs 16Gb FC — The Upgrade ROI

Scenario	16ГБ FC (2 порты)	32ГБ FC (2 порты, LPe35002)	Impact
VMware vMotion (100 GB VM)	~4 minutes	~90 seconds	2.6x faster. DRS rebalancing completes faster, cluster converges sooner.
Database checkpoint (200 ГБ)	~14 minutes (16 Gb/s sustained, link saturated)	~7 minutes (32 Гбит/с, burst I/O)	Checkpoint window halved. Smaller impact on OLTP performance during checkpoint.
Storage vMotion (1 TB datastore)	~9 minutes	~4.5 minutes	Storage migration in a maintenance window. Less risk of overrun.
Backup snapshot (5 TB increment)	~45 minutes	~22 minutes	Backup window halved. Fits in overnight window with room to spare.

NPIV — The Feature That Makes 255 VMs Look Like 255 Independent HBAs

Each physical 32Gb port on the LPe35002 can present up to 255 N_Port IDs (WWPNs) to the SAN fabric. This means 255 VMs per port, each with its own unique WWPN for SAN zoning, without installing 255 physical HBAs. For VMware environments with per-VM LUN masking and strict SAN zoning, NPIV is the feature that makes multi-tenant SAN storage practical at scale. The alternative — 255 physical HBAs — occupies 255 PCIe slots across multiple servers. The LPe35002 does it with 2.

Compatible SAN Infrastructure

32Gb SFP28+ optics compatible with Brocade Gen 7 (G720, G730) and Cisco MDS 32Gb directors and switches. Backward-compatible with 16Gb and 8Gb fabrics — the HBA auto-negotiates to the highest speed supported by both ends. 32Gb requires 32Gb-capable SFP+ optics on both the HBA and switch ports; 16Gb optics limit the link to 16Gb regardless of HBA capability.