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The IBM 01LJ126 is a hot-swap fan module (also listed as fan FRU or cooling module) designed specifically for the IBM Storwize V5000 Gen2 storage systems, particularly the 92F model (24-bay 2.5-inch SFF enclosure) and related expansion units in the V5000 Gen2 family.

This is a high-speed, redundant fan assembly that provides active cooling for the Storwize V5000 Gen2 controller enclosure or expansion enclosure (92F = 2.5" SFF 24-drive canister). The module contains multiple high-RPM fans arranged in a single replaceable tray, with integrated airflow direction optimized for front-to-back cooling in the enclosure.

Key characteristics:

• Hot-swappable design — can be replaced without powering down the enclosure when redundancy is maintained (N+1 fan redundancy typical in V5000 Gen2)
• Built-in fault detection and reporting to the Storwize firmware (via LED status and system alerts in GUI/CLI)
• Tool-less insertion/removal with latch mechanism
• Front-to-back airflow (cold aisle intake, hot aisle exhaust)
• Low acoustic noise profile for data center environments

Failure of a fan module typically triggers:

• Amber fault LED on the module
• Enclosure fault light
• Critical alert in Storwize GUI / CLI / email / SNMP
• Potential thermal throttling or enclosure shutdown if multiple fans fail

Replacement restores full cooling redundancy and prevents overheating of drives, controllers, or cache batteries.

Cisco 800-45806-01 3.5" hard drive tray caddy for UCS C3160/C3260

The IBM 01LJ138 is the official hot-swap drive caddy (also called LFF hard drive tray, carrier, or sled) for 3.5-inch Large Form Factor (LFF) drives in the IBM Storwize V7000 Gen2 (models 2076-524/624/724) and Storwize V9000 systems (and compatible expansion enclosures).

This is a tool-less, hot-swappable drive tray designed to securely hold and mount standard 3.5-inch SAS/SATA HDDs or SSDs into the Storwize V7000 Gen2 or V9000 front drive bays. It features:

• Black plastic/metal construction with a spring-loaded latch
• ESD (electrostatic discharge) protection
• Vibration-dampening mounts to reduce drive wear in dense enclosures
• LED pass-through for drive activity/fault indicators
• Alignment pins/guides for fool-proof insertion into the backplane

The caddy is mandatory for installing or replacing drives in these systems — bare drives cannot be inserted directly. It is the exact same tray used in most IBM Storwize V7000 Gen2 and V9000 enclosures (24-bay LFF or 12-bay LFF configurations).

Failure to use the correct tray (or using a mismatched tray from V7000 Gen1, V5000, or other vendors) can cause:

• Drive not detected
• Backplane connection failure
• Vibration-induced errors
• Improper seating or ejection

This tray is a very common FRU (Field Replaceable Unit) when trays are lost, damaged, cracked, or worn out during drive replacements.

The Cisco PWR-C5-1KWAC (OEM model DPS-1000AB-5 A by Delta Electronics) is a 1000 Watt hot-swappable AC power supply designed for the Cisco Catalyst 9200 and 9300 Series switches. It provides high-efficiency power conversion and redundancy support in enterprise campus and data center environments.

This is a 1kW AC power module that delivers reliable, efficient power to Catalyst 9300 and 9200 stackable switches. It supports full PoE/PoE+ / UPOE budgets when used in pairs and features high efficiency (80 PLUS Platinum rated) with active PFC. The PWR-C5-1KWAC is hot-pluggable, allowing replacement without shutting down the switch when installed in redundant configurations.

The CX354A features two QSFP ports, each capable of operating in either 40 Gb/s Ethernet mode or 56 Gb/s FDR InfiniBand mode (40 Gb/s effective data rate with IB overhead). The VPI (Virtual Protocol Interconnect) technology allows each port to be independently configured for Ethernet or InfiniBand, providing maximum flexibility in hybrid or multi-protocol environments.
In EMC/Isilon deployments, this card was one of the most commonly used cluster interconnect NICs in Isilon H-series (hybrid) and F-series (all-flash) nodes, enabling ultra-fast node-to-node communication across the scale-out NAS cluster. It supports RDMA (Remote Direct Memory Access) over both native InfiniBand and RoCE (RDMA over Converged Ethernet), delivering near-zero CPU overhead and sub-microsecond latencies for data transfers.
The card includes extensive hardware offloads for TCP/UDP/IP stateless processing, large send offload (LSO), receive side scaling (RSS), iSCSI/SMB Direct acceleration, FCoE (Fibre Channel over Ethernet), and advanced virtualization features like SR-IOV (up to 127 virtual functions per port).