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HP A3643A 4GB 7200RPM Fast Wide SCSI Hot Swappable 3.5-Inch Hard Drive
- Capacity: 4GB.
- Form Factor: 3.5-inch.
- Interface: Fast Wide SCSI.
- Rotational Speed: 7200 RPM.
- Hot Swappable.
- Designed for enterprise servers and storage arrays.
- Provides reliable data storage for critical applications.
- SCSI interface offers robust data transfer and error handling.
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Product Overview
The HP A3643A is a 4GB 3.5-inch Hard Disk Drive (HDD) featuring a Fast Wide SCSI interface. It is a hot-swappable drive designed for enterprise servers and storage systems requiring reliable, high-speed data storage.
Technical Information
| Product Type | Hard Disk Drive (HDD) |
| Brand | HP |
| Part Number | A3643A |
| Capacity | 4GB |
| Form Factor | 3.5-inch |
Additional Specifications
| Interface | Fast Wide SCSI |
| Rotational Speed | 7200 RPM |
| Hot Swappable | Yes |
| Cache | Typically 512KB or 1MB (common for this era) |
Product Description
The HP A3643A is a 4GB enterprise-class Hard Disk Drive (HDD) that utilizes the Fast Wide SCSI interface. This drive is designed for use in servers and storage systems where reliability, performance, and the ability to handle demanding I/O operations are critical. The 3.5-inch form factor is standard for server-grade drives, and the 7200 RPM rotational speed offers a good balance between performance and power consumption for its time, providing faster data access than slower drives. The Fast Wide SCSI interface is a key feature, offering higher data transfer rates and greater command queuing capabilities compared to older SCSI standards or IDE interfaces. This makes it suitable for multi-user environments and applications that require efficient data throughput. The 'Wide' aspect refers to the data bus width (typically 16-bit), which further enhances transfer speeds. SCSI drives are also known for their robust error detection and correction mechanisms, contributing to their reputation for reliability in mission-critical systems. As a hot-swappable drive, the A3643A can be installed or removed from a compatible server or storage enclosure without requiring the system to be powered down. This feature is essential for maintaining high availability and minimizing downtime in enterprise environments, allowing for drive replacements or additions during operation. While 4GB is a very small capacity by modern standards, this drive would have been typical for servers in the late 1990s or early 2000s, serving as boot drives or for specific application data requiring SCSI connectivity.
