A disk array is a disk storage system which contains multiple disk drives. It is differentiated from a disk enclosure, in that an array has cache memory and advanced functionality, like RAID and virtualization.

Disk array refers to a linked group of one or more physical independent hard disk drives generally used to replace larger, single disk drive systems. The most common disk arrays are in daisy chain configuration or implement RAID (Redundant Array of Independent Disks) technology. A disk array may contain several disk drive trays, and is structured to improve speed and increase protection against loss of data.

Disk arrays organize their data storage into Logical Units (LUs), which appear as linear block paces to their clients. A small disk array, with a few disks, might support up to 8 LUs; a large one, with hundreds of disk drives, can support thousands.

Norton Toolbar help you to protect your personal computer from threats aimed at stealing personal and financial information and safeguard your identity when you buy, bank and browse online.

Norton Toolbar provides security and convenience, because it will protect your personal and financial information from cybercriminals and help you to stay safe from fraudulent Web sites. Say goodbye to losing your password, digging through your wallet for the right credit card, and filling out the same form information over and over.

Symantec DeepSight Threat Management System tracks security events on a global basis, providing early warning of active attacks. With personalized notification triggers and expert analysis, the system enables enterprises to prioritize IT resources in order to better protect critical information assets against a potential attack.

To track security threats, it continuously correlates IDS and firewall attack data from the security systems of over 20,000 partners in over 180 countries, plus virus statistics from the Symantec Digital Immune System and many other human intelligence resources. Experts at Symantec analyze the information to identify active attacks and deliver advanced warning with actionable analyses and countermeasures.

The Symantec ThreatCon rating is a measurement of the global threat exposure, delivered as part of Symantec DeepSight Threat Management System. Powered by Symantec’s Global Intelligence Network, this tool provides website visitors with up-to-the-minute information on the latest Internet security threats, risks, and vulnerabilities.