Write Accelerator highlights:

• The World's Fastest Storage®
• Accelerates Oracle redo logs, temporary tablespaces, and undo logs, as well as similar components of SQL Server and other databases
• Directly attached to database servers, network attached, or deployed in a storage area network
• Recognized by the OS as just another disk drive
• Write Accelerator frees up servers and boosts performance.

Performance
The Write Accelerator connects to servers or network fabrics through basic Fibre Channel or InfiniBand interfaces and appears simply as a very fast disk to the network, able to act as any disk or storage system might. The Write Accelerator acheives dramatic performance gains in Oracle redo logs, temporary tablespaces, and undo segments.

Reliability
The Write Accelerator solution incorporates two individual solid state disk systems mirrored in host-side or Oracle ASM configurations, providing the highest degree of data protection and system reliability. In addition, each individual unit of the Write Accelerator solution includes multiple reliability features, including hot swappable power supplies and backup hard disks, redundant cooling fans, batteries, and optional redundant failover data ports. ChipKill technology, ECC and soft error scrubbing, and Active Backup, as noted below, are also part of the Write Accelerator’s suite of sophisticated reliability features.

Interoperability
The Write Accelerator is designed to look like a disk to the network. It is highly interoperable and works in virtually any enterprise environment. It is installed in numerous environments, including AIX, Solaris, HP-UX, OpenVMS, Tandem, Linux, and Windows. Hardware from Fibre Channel and InfiniBand vendors including Cisco, Emulex, Brocade, McData, Mellanox, QLogic, LSI Logic, and ATTO easily interoperates with the Write Accelerator. 

Active Backup
The Write Accelerator includes the reliability and fuctionality of Active Backup®. Other SSDs and cache systems can only "destage" data from RAM to backup disks once power is already lost. This means that data is never backed up during normal operation and the time-to-complete-backup after power loss is unacceptably long. A Write Accelerator with Active Backup can continuously back up data on RAM to the internal backup hard disks without impacting performance. This means in an emergency situation data is anywhere from 60-100% on the backup hard drives already.

Chipkill Technology
Write Accelerator systems take reliability even farther by implementing IBM Chipkill technology. Standard error correcting code (ECC) implementations correct single-bit data errors in memory chips but cannot correct the multi-bit errors that can result in data integrity issues. Chipkill technology allows a memory system to correct a multi-bit failure up to and including a total chip failure. 

Soft Error Scrubbing
All solid state disks can correct a single bit error before sending data to the server as a part of their ECC protection. The Write Accelerator, however, goes a step further by scrubbing, re-writing the corrected data to memory and then verifying the re-write to determine if a memory chip has a failure (a hard error) or if radiation transients caused the single bit error (a soft error). Systems that do not scrub single bit memory errors will either a) report errors to a system log that will eventually encourage replacement of a memory board or b) hide these errors thus leaving a potentially unsafe memory board in the system. Research on this topic suggests that 90% of single bit errors are soft errors. In these cases, the Write Accelerator will correct the error through the scrubbing process and prevent unnecessary downtime to replace the memory board.

The Write Accelerator Solution includes two individual Solid State Disk units. These are the specs of one of the two units:

BRONZE WARRANTY
Equipment purchased from Reactive Data LTD (Reactive) is warranted for 1 year from the date of shipment. The warranty includes return-to-factory service for equipment that does not meet its published specification during normal operation. Damage due to external causes including, but not limited to abuse, misuse, electrical power problems or any usage not in accordance with specifications and instructions automatically voids the warranty. REACTIVE ACCEPTS NO RESPONSIBILITY FOR ANY EXPENSES OR DAMAGES INCLUDING LOST REVENUE INCURRED DIRECTLY OR INDIRECTLY AS A RESULT OF DEFECTIVE TMS EQUIPMENT, OR FOR ANY EXPENSES INCURRED DIRECTLY OR INDIRECTLY WHILE THE EQUIPMENT IS BEING REPAIRED AT THE REACTIVE FACTORY.

Return to Factory
During the period that the equipment is covered by warranty, defective equipment can be returned to the factory for repair or replacement. The customer is responsible for shipping the equipment back to the factory, together with a detailed description of the nature of the problem and the tests used to determine the failure. Reactive will take all reasonable steps to repair or, at the discretion of Reactive, replace the faulty equipment within ten working days of receipt. The customer is responsible for shipping the repaired or replaced equipment back. In an emergency, special arrangements may be negotiated subject to the availability of Reactive resources and components.

Telephone and Software Support
Telephone support is available for a period of five years after purchase, during normal Reactive business hours. Firmware and software upgrades will be available at no cost.

Repairs/Returns
Prior to returning any product, Reactive must first authorise and issue a Return Material Authorization (RMA) number. Any item returned without an RMA number is subject to refusal. Freight collect or COD returns will be refused. To receive an RMA number, contact Reactive. When contacting Reactive Customer Service please have the Reactive part number, the serial number and a detailed description of the problem. All returned goods must be shipped freight prepaid in the original boxes and packing materials, with the Reactive RMA number prominently displayed on the outside of each shipping container. Once the RMA has been issued, the items must be returned to Reactive within thirty (30) days, or else the RMA will be cancelled.

SILVER WARRANTY - Advanced Parts Replacement
Reactive Data LTD Silver Warranty may be purchased which provides all of the features of the Bronze plan. In addition, for one to three years (customer option), Reactive will ship a new replacement part to the install site for delivery the next business day if, in the judgment of Reactive, an issue as described by the customer is the result of a defective part. Reactive must be notified by 2:00 p.m. GMT in order to guarantee next day shipping. The customer is responsible for shipping the defective part back to the factory no later than ten days after receipt of the replacement hardware. If Reactive has not received the defective hardware after this time, the customer will be charged the full price of the replacement hardware. The customer is responsible for shipping costs. Silver warranty option must be purchased at time of equipment purchase, and does not extend the basic warranty by default.

GOLD WARRANTY - On-site Repair - Business Hours
Reactive Data LTD Gold Warranty may be purchased which provides all of the features of the Silver and Bronze plans. Additionally, in the event of a hardware failure, customer should call a special 800 number for 24/7 technical support 365 days a year to receive technical assistance from Reactives technical support staff. Gold Warranty also provides, when necessary, on-site service at the customer location Monday through Friday between the customer location hours of 9:00 a.m. and 5:00 p.m. On-site service is only applicable to non-user replaceable components; on-site service does not cover software related issues. Customer must purchase a spares kit for items that will be maintained under the Gold Warranty.

PLATINUM WARRANTY - On-site Repair - 24/7
Reactive Data LTD Platinum Warranty may be purchased for the United States and most Western European countries* which includes all of the coverage in the Silver and Bronze plans plus the added protection of on-site four (4) hour response, when necessary, at the customer location seven (7) days a week. As with the Gold Warranty, customer is provided a special 800 number for 24/7 technical support 365 days a year. In the event of a failure, customer should call to receive immediate technical assistance from Reactives technical support line. On-site service is only applicable to non-user replaceable components; on-site service does not cover software related issues. Customer must purchase a spares kit for items that will be maintained under the Platinum Warranty.

* Please contact Reactive for details on coverage areas.

OUTSIDE OF WARRANTY
Faulty equipment may be returned to the factory for repair up to five years after purchase with appropriate RMA. The customer is responsible for shipping the equipment back to the factory, together with a detailed description of the nature of the problem and the tests used to determine the failure. Reactive will take all reasonable steps to repair or, at the discretion of Reactive, replace the faulty equipment within thirty working days of receipt. Customer will be charged current list prices for replacement components. The customer is responsible for shipping the repaired or replaced equipment back. In an emergency, special arrangements may be negotiated subject to the availability of Reactive resources and components. Subject to availability, Reactive field service personnel will perform troubleshooting of equipment.