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Hardware based RAIDs are becoming mainstream as end users recognize the data security benefits of Parity RAIDs. The failure tolerance that can be built into these systems by the RAID Controller make your data storage safer than ever while providing excellent performance and reliability. These RAID controllers all have an on board CPU and RAM that’s dedicated to the RAID management preventing your system resources from being taxed. Robust failure tolerance can be built in allowing recoverable drive failures with minimum downtime. The RAID Management GUI on these cards makes the setup and management almost intuitive.
If a large database volume is important to you, check out the new SAS Cards from 3ware, ATTO and Areca . These cards when used in conjunction with an expander can support up to 128 SAS or SATAII drives. High performance 10K or 15K SAS drives can be used for your work array and back it up to larger, slower and less expensive SATA drives. The best of both worlds.
A quick note about backups. No matter how much data security a Parity RAID provides, you MUST ALWAYS KEEP A BACKUP OF ALL DATA. The only event that this type of RAID protects you from is a common drive failure. Consider the many methods of data loss and corruption that a RAID can’t protect you from. A recent backup is your only guarantee.
DO NOT USE ARECA CARDS WITH DELL 2900 OR 2950 SERVERS DUE TO A BIOS INCOMPATIBILITY.
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