General |
| Q1. |
What's new with HP's latest Emulex LPe1105-HP HBAs? |
| A1. |
The Emulex LPe1105-HP is based on Emulex's seventh generation Fibre Channel controller chip, "Zephyr" and is driver compatible with the entire Emulex family of HBAs. Additionally, the LPe1105-HP transmits 4 Gb/s I/O requests at link speed, regardless of application environment, based on Emulex's unique Frame-level Multiplexing and Out-of-Order Frame Reassembly architecture. |
|
| Q2. |
How does the Emulex LPe1105-HP compare with competitive products? |
| A2. |
The Emulex LPe1105-HP offers features not found in competitive models, include firmware-upgradeable architecture, hardware-independent drivers that are compatible across the product line, large on-board data buffers and context caches, and extended reconfigurability options - including firmware upgrades - without rebooting the host server. These features improve performance in complex SANs, protect the value of the adapter assets, and directly lower the Total Cost of Ownership (TCO).
|
|
| Q3. |
What operating systems are supported with Emulex LPe1105-HP? |
| A3. |
Emulex HBAs ship with standard Emulex Windows and Linux drivers.
Additionally, Emulex's HBAnywareT management software supports both Linux and Windows operating systems.
|
|
| Q4. |
I've read that Emulex drivers are hardware-independent and compatible across the product line. What does that mean? |
| A4. |
Current, and future generations of Emulex HBAs can use the same driver, greatly simplifying SAN management in a scalable blade environment.
|
|
| Q5. |
How did Emulex make their products driver-compatible? |
| A5. |
Early on, Emulex recognized the benefits of flexibility and stability that result from a common, consistent architecture. Emulex established a standard interface between the host-based software components of its Fibre Channel architecture, and the hardware and firmware elements resident in its controller chip-based hardware solutions. Emulex designed a firmware-to-driver interface called the Service Level Interface (SLI) for their very first generation HBA technology over six years ago. Firmware releases for each of the following generations of HBAs have all adhered to this SLI. Similarly, future drivers will also follow the SLI, making them compatible with the older versions of the product. For more detailed information on Emulex's SLI, visit the Emulex website.
|
|
| Deployment and Management |
| Q1. |
Can I run my tape drives off the same HBA as my storage array without impacting my performance? |
| A1. |
Yes, Emulex HBA technology has an architecture that can maintain a high level of performance even with mixed workloads such as tape backup and data base transaction processing. Unlike competitive HBAs, Emulex HBAs multiplex the frames of I/Os (Tape and Disk) rather than the whole I/O sequence. This means that a frame of a disk I/O does not have to wait for a large tape I/O data block to complete before being serviced. Other HBAs have to stall the small block data transaction until the tape sequence completes, drastically degrading I/O performance.
|
|
| Q2. |
Does the Emulex LPe1105-HP comply with RoHS? |
| A2. |
The Emulex 4 Gb/s HBAs are fully compliant with the European Union's RoHS directive (Restriction of Hazardous Substances) in Electrical and Electronic Equipment . The RoHS Directive prohibits the use of certain hazardous substances (such as lead and cadmium) in any components or materials used in electronic products. Products shipping to the EU after July 1, 2006 must comply with the RoHS restrictions. The Emulex 4 Gb/s HBAs are compliant, including the requirement for lead-free solder processes, well ahead of the required deadline and possibly other competitive offerings.
|
Printable version
